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Rounding the Bases Faster, With Math

An anonymous reader writes "The fastest route around the bases, mathematicians show, is one that perhaps no major-league ball player has ever run: It swings out a full 18.5 feet from the baseline, nearly forming a full circle. 'I would definitely experiment with it,' says former American Major League Baseball outfielder Doug Glanville, who last played with the Philadelphia Phillies. 'There's no question in my mind that runners could be more efficient.'"

148 of 212 comments (clear)

  1. Re:Hitting the brakes slows you down. by Sensible+Clod · · Score: 3, Insightful

    Well, yeah, always obvious in hindsight, but I'm just waiting for someone to say, "If that really worked, everybody would be doing it already."

    --

    The difference between spam and poop is that you don't have to dig through septic tanks looking for real food. -- Me
  2. Re:Hitting the brakes slows you down. by Anonymous Coward · · Score: 1, Informative

    If that really worked, everybody would be doing it already.

  3. 1st page of the proof: by Anonymous Coward · · Score: 5, Funny

    1st page of the proof:
    Consider a spherical runner in a frictionless vacuum.

    1. Re:1st page of the proof: by Tablizer · · Score: 5, Funny

      Consider a spherical runner...

      Baseball players are approaching that these days.
         

    2. Re:1st page of the proof: by Potor · · Score: 1
      This is the funniest thing I've ever read in /.

      Bravo.

    3. Re:1st page of the proof: by Sir_Lewk · · Score: 1

      I'll be interested to see how they make turns in a frictionless vacuum. Maybe with an RCS?

      --
      "linux is just DOS with a UNIX like syntax" -- Galactic Dominator (944134)
    4. Re:1st page of the proof: by Urkki · · Score: 1

      I'll be interested to see how they make turns in a frictionless vacuum. Maybe with an RCS?

      It didn't say it was tractionless vacuum. Frictionless just implies that no energy (as heat, sound etc) is lost to friction.

    5. Re:1st page of the proof: by sumdumass · · Score: 1

      Traction relies on friction.

      However, I don't know if the op was being pedantic or funny. I'm just bored and pointing out the obvious even though your comment was obvious.

    6. Re:1st page of the proof: by treeves · · Score: 2, Interesting

      They charge the runners and apply a magnetic field perpendicular to the playing field? Synchrotron baseball. Cool.

      --
      ...the future crusty old bastards are already drinking the Kool-Aid.
    7. Re:1st page of the proof: by Plunky · · Score: 1

      Traction relies on friction.

      I see what you are thinking, but a pendulum swinging in a vacuum still follows a curved path..

    8. Re:1st page of the proof: by amRadioHed · · Score: 4, Insightful

      These days? Have you seen a picture of Babe Ruth?

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    9. Re:1st page of the proof: by amRadioHed · · Score: 1

      What? Since when are baseball players attached to a pendulum? I'm pretty sure they have to rely on traction to round those bases.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    10. Re:1st page of the proof: by PopeRatzo · · Score: 2, Interesting

      1st page of the proof:

      My good friend and neighbor, the mathematician G.V. Ramanathan has an article in this weekend's Washington Post that seems a little bit relevant to this discussion. It's called "How much math do we really need?"

      I recommend you take a look. He makes a very interesting point. [See? I told you I'd find a way to promote it on Slashdot.]

      --
      You are welcome on my lawn.
    11. Re:1st page of the proof: by Urkki · · Score: 1

      Traction relies on friction.

      I guess the dictionary definition does. I was actually referring to more general concept, which would include things like frictionless gears (which would still transmit power to connected gears) or maglev train propulsion (I think it's generally called propulsion and not traction), and (since we're talking about a spherical runner moving in a vacuum) even Star Trek tractor beams.

    12. Re:1st page of the proof: by vidnet · · Score: 1

      Link to parent's article.

      To summarize, the author thinks that math marketing in the form of contrived examples like "the rate at which the fluid level in a martini glass will go down, assuming, of course, that one sips differentiably" and math evangelism like "math camp" and "family math" is unnecessary. People who aren't interested in math don't need to study it, because "Unlike literature, history, politics and music, math has little relevance to everyday life. "

    13. Re:1st page of the proof: by Joe+Snipe · · Score: 1

      Just enough to complete a set of all sets that don't contain themselves.

      --
      Sometimes, life itself is sarcasm...
  4. Parameters? by Anonymous Coward · · Score: 1, Interesting

    So there's a single, precise path for this?
    It doesn't vary even slightly based on one's mass, the length of one's legs, or anything?

    1. Re:Parameters? by kainosnous · · Score: 1

      ..but wouldn't that mess up the whole idea of a completely theoretical model? For instance, how many people who, having rounded three bases would really be in a hury to get to home, seeing how they have probably hit a home run. Also, they specifically mentioned that they didn't take into account that humans don't accelerate as fast in a curve.

      --
      There are 10 commandments: 01)Thou shalt love the Lord Thy God 10)Thou shalt love thy neighbour as thyself.Matt22:34-40
    2. Re:Parameters? by Firethorn · · Score: 1

      Sounds like the next step would be to round up like 20 runners - 10 who play baseball, 10 that don't, and either get two infields - one marked traditionally, one marked with the 'optimized' path, or just have one with both markings - though I'd want them to be coverable in that case, to avoid 'mental hesitation'.

      The reason for getting baseball and non-baseball playing runners is that the baseball players are likely to know how to run a diamond the best, while the non-players can provide a more 'even' sample.

      Then do some test runs.

      In the end, probably realize the time saved isn't enough to pick up an extra base, on average, and gets more players caught 'out' due to not stopping when they should have.

      --
      I don't read AC A human right
    3. Re:Parameters? by baegucb · · Score: 1

      Sounds like a job for Mythbusters.

  5. Re:Hitting the brakes slows you down. by Sarten-X · · Score: 4, Insightful

    If that really worked, everybody would be doing it already.

    And indeed, baseball players typically do this: They run straight along the baseline at the beginning and then, if they think they’ve hit a double or more, they bow out to make a “banana curve. ... Carozza noticed that even when the ball heads straight for a pocket between fielders, making a double almost certain, runners almost never curve out right away.

    The researcher seems to expect ball players to gamble with every such run, betting their play on what the researcher thinks is "almost certain". That means that, while trying to hit the ball, the player must know the tactics and maximum speeds of all the opponent fielders. I don't think that's going to happen.

    --
    You do not have a moral or legal right to do absolutely anything you want.
  6. Re:only if you know you're in-route to a home-run. by martin-boundary · · Score: 5, Funny

    Of course if you're only trying to get to first, a straight line might be advised.

    Huh? You're trying to get to who?

  7. Useful? by Palmsie · · Score: 1

    If the majority of hits are singles, does this still apply? It only mentions hitting a double in that you can round the base faster. It would look pretty funny if the batter used this for a single and it took them much longer.

    --
    Carl Sagan quotes get you an automatic +5 on all posts.
    1. Re:Useful? by hedwards · · Score: 1

      That's not the reason why it's not useful, the reason why it's not useful is that it requires thinking on top of the rest of the thinking involved with base running. Yeah players often times do know that they can make 2nd base on their hit, but sometimes they're wrong and need to hold up. Or more likely a bumble allows them to take 2nd.

      Plus, this would run afoul of the already lax standards for staying in the baseline when running the bases.

  8. Maybe for a home run... by guyminuslife · · Score: 5, Interesting

    The main reason why they've calculated a circular path is because of the delays that sharp turns introduce. As far as I can tell, this path makes sense if and only if you're trying to run from home to home. If you're going for a single, or a double, or a triple, you'd have different ideal path.

    So even in theory, this doesn't really pan out: nobody in MLB makes it to home-plate on an outfield hit. You could probably come up with more effective routes for doubles and triples, but on the other hand, it's probably hard to tell if you've hit a triple right as you start running. If you make a hit that would be a triple, but follow a route like it's a single and then change your mind as the ball gets played, you'll probably still end up with a single or a double. If you start running for a triple on a base hit that's only really going to get you a single, it could slow you down enough to get you out. I'm more in the hedge-your-bets camp, and I'm betting that, on that basis, this isn't an effective way to go.

    --
    I don't believe in time. It's a grand conspiracy designed to sell watches.
    1. Re:Maybe for a home run... by Angst+Badger · · Score: 2, Funny

      On the other hand, if it works, maybe high school jocks with start to find it counterproductive to bully the math geeks.

      --
      Proud member of the Weirdo-American community.
    2. Re:Maybe for a home run... by SecurityGuy · · Score: 2, Informative

      TFA addresses this. The ideal path for a double still curves quite a bit, going about 14' off the straight line path instead of 18 for the home to home path.

      It is amusing to think that the only time you know when you leave the plate that you're running back to home for sure is the same time when it doesn't matter how fast you go.

    3. Re:Maybe for a home run... by CheshireCatCO · · Score: 5, Informative

      As far as I can tell, this path makes sense if and only if you're trying to run from home to home. If you're going for a single, or a double, or a triple, you'd have different ideal path.

      As the article notes, the authors are aware of this. They also are aware of the fact that runners seldom adjust to more efficient paths even when they know they've hit doubles, not singles. This was, in fact, the motivation for the study.

      I think you're confusing their point: they're quite clear that they don't think that this helps in reality (at least, not much). It's an exercise in "I wonder..."

    4. Re:Maybe for a home run... by Anonymous Coward · · Score: 1, Funny

      They didn't account for all the variables. Kicking each basemen in the nuts buys you more time. Also swinging slightly wide and hitting the Catcher in the face mask can buy you the seconds need for an in field home run while they revive him. If that fails just aiming your cleats for his knee cap can have the same affect. Variables are critical to any equation. I mean what if your base hit beans the pitcher on the head and his lifeless body falls on the ball? That can easily turn a base hit into a home run if the pitcher is over 250 lbs.

    5. Re:Maybe for a home run... by Sarten-X · · Score: 2, Funny

      when they know they've hit doubles

      Right. The players will hit the ball, then watch carefully and verify its path, do some quick back-of-the-envelope calculus to verify the fielders' maximum speeds, apply their doctorate-level psychology knowledge to anticipate the fielders' actions, then once they know it's a double, they'll start running a longer path that's faster if their bodies work according to various assumptions.

      Or, they'll just run, and figure out what's best as they go.

      It's baseball. It's not rocket science.

      --
      You do not have a moral or legal right to do absolutely anything you want.
    6. Re:Maybe for a home run... by Fnord666 · · Score: 1

      It's an exercise in "I wonder..."

      Great. I wonder how many of my tax dollars this year were spent so that mathematicians can indulge in "I wonder..." studies where there is no expected useful outcome?

      --
      'The tyrant will always find pretext for his tyranny.' - Aesop's Fables
    7. Re:Maybe for a home run... by Brett+Buck · · Score: 2, Interesting

      Additionally, they discount the fact that you can use the base to apply extra side-force to cut the corner faster. - the fastest path around the bases is to curve a little but mostly to use the inside corner of the base, with your outside foot, to push off in a new direction. Baseball has been played for 150 or so years,and has been studied to death by both the finest minds in sports and some of the best athletes, in real life. The ideal path has been known for more than a century, and coached accordingly.

    8. Re:Maybe for a home run... by CheeseTroll · · Score: 2, Insightful

      I would guess that *most* mathematical research is done without any expectation of a "useful" outcome. On the other hand, how much of our modern world would be possible without that exact type of "I wonder..." research?

      --
      A post a day keeps productivity at bay.
    9. Re:Maybe for a home run... by kainosnous · · Score: 1

      Or perhaps, this is some math geek's way of getting back at the jocks by making them run in silly circles and loose the game. If we ever get a scientific report that the best route is in fact skipping from base to base, then we'll know for sure.

      --
      There are 10 commandments: 01)Thou shalt love the Lord Thy God 10)Thou shalt love thy neighbour as thyself.Matt22:34-40
    10. Re:Maybe for a home run... by guyminuslife · · Score: 1

      Maybe I've been drinking too much...I missed that line.

      I haven't played baseball since Little League, certainly not on a professional level, but I would think that a runner would have to pay attention to what the outfielders are doing, and adjust on the fly. If so, it's probably better to aim on the side of caution.

      But of course, none of what we're talking about right now is reality, reality is the Rangers in the World Series (I've now lived in Dallas long enough that I probably have to become a fan now), we're still talking about theory.

      --
      I don't believe in time. It's a grand conspiracy designed to sell watches.
    11. Re:Maybe for a home run... by lostros · · Score: 1

      Man, every single dollar spent on mathematics is an exercise in I wonder, that's actually the point of the entire field. Check out the mathematician's lament sometime (http://www.maa.org/devlin/LockhartsLament.pdf). but surveying and launching things into orbit and all that is pretty neat, so we let it go. It also is just federally funded schools spending the money how they choose, as is their right.

    12. Re:Maybe for a home run... by guyminuslife · · Score: 4, Funny

      Well, if the math geeks can find a significant increase in efficiency, and they don't tell the jocks, then guess who gets the ladies?

      (The jocks. But it was worth a try.)

      --
      I don't believe in time. It's a grand conspiracy designed to sell watches.
    13. Re:Maybe for a home run... by Dahamma · · Score: 1

      Modded, funny, but should be modded insightful (since it's what I was going to post ;)

      The whole point that makes this article useless is that the optimal path requires perfect knowledge of the target base from the start, and that's just not how baseball works.

      It just shows the difference between the exact science of mathematics, and the heuristics of game theory/statistics, etc. The average (ok slightly above average) player hits maybe 25 doubles and a couple of triples, vs over 150 singles. So, statistics say they should really just make sure they get to first base. Anyone who knows baseball knows most doubles are stand-up, ie. it's in the gap and is pretty clear once the outfielder can't get it. Triples are honestly the only time you might even want to worry about it, yet the odds of getting in that situation are so low it's just not worth worrying about.

      Besides, the "standard line" for running the bases has always been to gradually loop out for a wide curve when you think you may have a shot at the next base. If they are saying it could be extended a few feet given perfect knowledge of the result - again, BFD. Players *already* try that with imperfect knowledge, sometimes to great or tragic results.

    14. Re:Maybe for a home run... by guanxi · · Score: 1

      it's probably hard to tell if you've hit a triple right as you start running

      OT: Actually you can tell. I'm no expert but watching baseball, I can tell you which base the batter will reach as soon as I know where the ball will stop; I expect that most other baseball fans can do the same. A hit that doesn't get by the outfielders: single. A hit that reaches the wall either side of the CF: double. Hit over the CF head: triple.

      Of course there's some variation, depending on the speed of the batter, on other baserunners, on the play the defense attempts, etc. But it's not too hard to predict.

    15. Re:Maybe for a home run... by slothman32 · · Score: 1

      "silly circles and loose the game"

      And the grammar geeks will pick on the math geeks for using the wrong word instead of 'lose'.

      Ignore my "beginning a sentence with 'and'" and putting the period outside of the quotes; that's how I write.

      And yes, I probably put a mistake in here too.

      --
      Why don't you guys have friends or journals?
    16. Re:Maybe for a home run... by Libertarian001 · · Score: 1

      "So even in theory, this doesn't really pan out: nobody in MLB makes it to home-plate on an outfield hit."

      There are numerous inside-the-park home runs every season. Common? No, not really, but they happen often enough that to say that "nobody..." does it leads me to believe that you (and those who modded you) don't actually watch baseball. That's fine; it's not for everyone. Kindly refrain from commenting on it if you don't actually know what you're talking about. I know, I know, this *is* /.

    17. Re:Maybe for a home run... by nitehawk214 · · Score: 1
      --
      I'm a good cook. I'm a fantastic eater. - Steven Brust
    18. Re:Maybe for a home run... by gnasher719 · · Score: 2, Insightful

      t just shows the difference between the exact science of mathematics, and the heuristics of game theory/statistics, etc.

      I think the problem is that no _serious_ mathematics has been applied. This is just two guys running with an idea and a bit of very imprecise computer simulations and then put up an article on the internet. Their model of a runners' speed and accelleration is very imprecise. You'd have to take factors like exhaustion and ability to accelerate running in a curve vs. a straight line into account. Then game theory and statistics (which both fall under the exact science of mathematics) have not been applied at all. The problem isn't that mathematics doesn't work, it works just fine, but you have to do it seriously. These guys haven't.

    19. Re:Maybe for a home run... by Dahamma · · Score: 1

      When hitting you can probably judge whether you got a powerful hit or a chopper

      Yep... you have obviously never actually PLAYED baseball at any competitive level. The only people who actually use statistics like you quote are statisticians and armchair fantasy baseball nerds.

      It's not a video game - a single or double doesn't usually depend on how hard you hit the ball. It depends on the location (which is as much luck as anything) and more importantly how the outfielder was playing you vs where the ball went.

      Even when it seems "obvious" (off the wall, etc) you almost always base the decision to go to 2nd from the 1st base coach's direction. You make contact, start running at fast as you can, everyone starts looking, and you are basically over 1/2 way to 1st base before anyone figures out where the ball ended up. And a lot of the time you are not the only one running - you (and the base coaches) have to look out for other runners, figure out what they are going to do, and watch the outfielder, cutoff man, etc, to know where the ball is coming in.

      Trying to plan for the exact base and route to it (beyond the usual wide turn that any little leaguer already knows) from the moment you make contact is about as useful as planning where you are going to swing before the pitch. It's NOT a video game...

    20. Re:Maybe for a home run... by epine · · Score: 1

      The situation where this seemed potentially useful is when you smoke one down the baseline (left or right). It will either be caught (you're out), curve foul (return to the batters box, do not collect $200) or rattle around in the deep corner. If the loping path is as much faster as this suggests, maybe some of the easy stand-up doubles can be stretched for a triple, or a triple can be waved home if the outfielder makes multiple pumps to fish out the ball.

      Baseball is a game of inches. You take whatever edge you can, whether it comes up often or not. I haven't watched much baseball since the Jays last won the series (I was in Toronto at the time and caught the homer-fever despite the deadly slow pace of the game compared to the one true sport), but it seems to me that a guy like John Olerud would be the perfect case study. "Cheetah" hit a lot of balls that begged to be stretched for an extra base, but didn't have Henderson's wheels.

      From the bathroom wall of all knowledge:

      Longtime scout Charlie Metro remembered the havoc caused by Henderson: '"I did a lot of study and I found that it's impossible to throw Rickey Henderson out. I started using stopwatches and everything. I found it was impossible to throw some other guys out also. They can go from first to second in 2.9 seconds; and no pitcher catcher combination in baseball could throw from here to there to tag second in 2.9 seconds, it was always 3, 3.1, 3.2. So actually, the runner that can make the continuous, regular move like Rickey's can't be thrown out, and he's proven it."

      This is followed by another cute anecdote, demonstrating a rare, appropriate use of all-caps:

      "I'm about to give you one of my all-time favorite statistics: Rickey Henderson walked 796 times in his career LEADING OFF AN INNING. Think about this again. There would be nothing, absolutely nothing, a pitcher would want to avoid more than walking Rickey Henderson to lead off an inning. And yet he walked SEVEN HUNDRED NINETY SIX times to lead off an inning.

      For Rickey, when he made first base, he was 81% safe at 2nd already. No math required.

    21. Re:Maybe for a home run... by Mr.+Underbridge · · Score: 1

      It could be potentially useful though, too. Baseball is home to a lot of "we do it this way because we've done it since the 1800s", as well as a lot of "I'm doing it this way because I think I'm clever". This is in frequent contrast to the actual evidence.

      For Chrissakes, there are runners who still slide/dive into *first* because they inexplicably think it's faster (and no, not just to avoid a tag).

    22. Re:Maybe for a home run... by tburkhol · · Score: 3, Interesting

      Right. The players will hit the ball, then watch carefully and verify its path, do some quick back-of-the-envelope calculus to verify the fielders' maximum speeds,[...]

      Or, they'll just run, and figure out what's best as they go.

      Those are the same thing. Brains are smart and very good at prediction, especially given the training a pro ball-player goes through. It's 3 seconds to first base - that's a lot of time to predict and adapt. Ball players do it intuitively; the physicists have just quantified it (and probably failed to account for a dozen parameters that a ball player's brain will accommodate without their conscious awareness.

    23. Re:Maybe for a home run... by hedwards · · Score: 1

      Duh, you must be new here. That's why it's called mathematical research and not physics or some other specialty. The main difference is that with math you're focused on the mathematical challenge rather than the what actually happens stuff.

      Not that there's anything wrong with it or that it never gets applied, it's just not usually referred to as mathematical research if it has a direct and obvious application.

    24. Re:Maybe for a home run... by hedwards · · Score: 1

      I know you're joking, but that was a lot more common in the past. A part of proper base running back before the MLB absorbed most of the PCL teams involved such shenanigans. These days at most you get somebody giving the catcher a concussion.

    25. Re:Maybe for a home run... by goose-incarnated · · Score: 1

      Baseball has been played for 150 or so years,and has been studied to death by both the finest minds in sports and some of the best athletes, in real life.

      The finest minds in sports and some of the best athletes in real-life probably would have trouble thinking their way out of a paper bag.

      --
      I'm a minority race. Save your vitriol for white people.
    26. Re:Maybe for a home run... by Reziac · · Score: 1

      It's also a psych thing. Some runners slide into first to intimidate or try to make the first baseman miscalculate, same as why some others barrel right through him.

      --
      ~REZ~ #43301. Who'd fake being me anyway?
  9. This misses the point by Anonymous Coward · · Score: 2, Informative

    No one cares about how fast you can round _all_ of the bases. There are only two times when it is applicable -- a home run or an in-field home run. The first makes the speed unimportant. The second really doesn't happen frequently.

    The player will hit the ball, and then attempt to get to first base. If conditions look good, they will try for second base. At this point, third base will only be attempted in rare cases, mainly when an error has been made by the fielding team. The double/triple attempts are more based on information that isn't known when the player first hits the ball. As such, the action will be to take the fastest path from the current base to the next base.

    So that swooping path can't be slower than the straight path or the player risks giving up a lot of singles and allowing double-plays. These are often determined by fractions when the fielding team is efficient.

  10. Re:Hitting the brakes slows you down. by flaming+error · · Score: 4, Insightful

    Players don't run in a big circle because there is no reasonable expectation they can round all four bases. They're lucky to get one.

    You get a hit, you run straight for 1st. If after arriving you can keep going, you curve over to second. Unless you belted it out of the park (and are therefore in little hurry) it's unlikely you can get further than that, but anybody going on to 3rd will make another wide curve.

    In general, if a runner thinks he can clear two bases, he'll make a wide curve. Otherwise it's just a beeline for the next base.

  11. I'm sorry guys but... by pizzach · · Score: 1, Funny

    Does this not seem like a round-about answer to anyone else? *hides under a desk*

    --
    Once you start despising the jerks, you become one.
    1. Re:I'm sorry guys but... by Ironweaver · · Score: 2, Funny

      Surely an example of circular reasoning...

  12. Re:only if you know you're in-route to a home-run. by hldn · · Score: 4, Funny

    naturally!

    --
    http://www.accountkiller.com/removal-requested
  13. Re:Hitting the brakes slows you down. by shentino · · Score: 2, Interesting

    Where are the constraints?

    You can be called out if you stray too far from the base line.

  14. Re:And then the umpire probably calls you out by Azarael · · Score: 4, Informative

    I thought that too, but wikipedia and other online sources say that this only applies when a defensive player is attempting to make a play on the runner. At that point the runner must proceed on the most direct path to the base, without deviating by more than 3ft, otherwise the runner is called out.

    Online references aside, this makes a lot of sense thinking of the baseball that I've played and watched on tv.

  15. Guess I'm confused by tpstigers · · Score: 3, Funny

    I thought a 'home run' was something else entirely. Involving a girl. A naked girl. I didn't know running in a circle was part of the process. Or running at all, for that matter.

    1. Re:Guess I'm confused by mmontour · · Score: 2, Informative

      I thought a 'home run' was something else entirely. Involving a girl. A naked girl. I didn't know running in a circle was part of the process. Or running at all, for that matter.

      Meat Loaf can explain the connection.

    2. Re:Guess I'm confused by imikem · · Score: 1

      It's okay. This is /. both sports and anything involving naked girls are mysteries here. Think of a home run as a successful compile of your favorite project on your Gentoo Linux running on your homebuilt octocore rack mount server in Mom's basement.

      --
      Perscriptio in manibus tabellariorum est.
  16. Back in 7th grade base ball by pastyM · · Score: 1

    I would have been called out for running a line like that.

    1. Re:Back in 7th grade base ball by penguinchris · · Score: 1

      The rules in Little League and similar tend to be enforced much differently than in the professional leagues - tends to take a lot of the fun out of things. Part of the fun is stretching the rules!

      As others have noted several times it's not actually against the MLB rules to run a line like this, unless you're doing it to avoid someone who will tag you out if you run straight for the base. In Little League, though, this often gets interpreted as meaning you need to run within a couple of feet of the painted line .

      Meanwhile, the kids who don't have Little League and who play on their own (down to stickball level) have a lot more fun because they get to bend the rules as much as they want. I was in the position of supervising kids playing baseball at a summer camp on a few occasions, and I made sure that we bent the rules as much as possible (while remaining fair to both sides of course).

  17. Re:And then the umpire probably calls you out by Chuckstar · · Score: 1

    I checked the official MLB rules, and your understanding is correct.

  18. Re:Baseball is still a shitty sport. by Anonymous Coward · · Score: 3, Funny

    All I'm hearing out of you is "watching tall lanky guys", "bouncing balls", "putting it in a guy's hole", "playing with a guy's stick", and "left hand tugging a guy". It makes me think that you might be a user of Apple products.

  19. Re:Hitting the brakes slows you down. by fotbr · · Score: 3, Informative

    Only once a defensive player is attempting to make a play on you.

  20. Re:Hitting the brakes slows you down. by compro01 · · Score: 5, Interesting

    You can be called out if you stray too far from the base line.

    I cannot find anything in the rules saying that. Only thing I can find at all related is rule 7.08 (a) (1), which only applies if they move away from the base line to avoid being tagged.

    AFAICT, they can run where ever they like as long as they don't interfere with the fielders.

    --
    upon the advice of my lawyer, i have no sig at this time
  21. Re:But the basepath is only 6 feet wide by compro01 · · Score: 2, Informative

    Runners can be called out for running outside the basepath, which is 3 feet to either side of the baseline. It usually only comes up on plays where the runner is trying to avoid a tag, but that's also usually the only time anyone ever goes very far from the baseline. It's quite likely a runner would get called out well before they got 18.5 feet away from the baseline.

    No, that rule explicitly only applies when they're trying to avoid a tag. it's rule 7.08 (a) (1).

    http://mlb.mlb.com/mlb/official_info/official_rules/runner_7.jsp

    --
    upon the advice of my lawyer, i have no sig at this time
  22. Re:Hitting the brakes slows you down. by shentino · · Score: 1

    Which they are liable to do and you could probably be called out before you scuttle back to the baseline.

  23. very telling by rubycodez · · Score: 3, Insightful

    none of the researchers or verifiers actually got off their ass and ran bases to test

    1. Re:very telling by jmottram08 · · Score: 2, Insightful
      Do you want some engineer that designed something to test it out to see if it improves professionals performance half a percent?

      Please. This is to help real baseball players who really run bases. If the math guys could suddenly outrun the professionals, fine, but this is a clear fraction of a fraction gain, not a leap forward.

      You don't get non-runners to do a running test. How is this insightful? Seems more "funny" to me.

    2. Re:very telling by 93+Escort+Wagon · · Score: 1

      If the math guys could suddenly run at all, fine...

      There, fixed that for you.

      --
      #DeleteChrome
    3. Re:very telling by gringer · · Score: 1

      From the article:

      A path that follows a circle turned out to be a whopping 25 percent faster.

      That's a pretty big performance boost. It'd need to get to 33% faster to turn a 3rd base run into a home run every time, but there may be times when 25% is all you need.

      --
      Ask me about repetitive DNA
    4. Re:very telling by rubycodez · · Score: 1

      funny, for most of human history everyone knew how to run. Now only paid specialists can do it. I see.

      Those that marked you *insightful* are a pathetic part of modern society's health and mind problems

    5. Re:very telling by jmottram08 · · Score: 1
      . . . are you serious?

      I mean, jesus christ get a fucking clue. Professional marathoners run VERY differently than sprinters, who run VERY differently than tri-athletes, who run VERY differently than baseball players, who run VERY differently than math professors.

      No where did I imply that people couldn't run, I implied that you must be a goddamn retard to test a running efficiency path with non-runners as your test subjects.

    6. Re:very telling by rubycodez · · Score: 1

      Hahahahahaha! we're talking BASEBALL players here man!

      they aren't marathoners, many really aren't even athletes. Or to put it another way, two words: Babe Ruth.

    7. Re:very telling by jmottram08 · · Score: 1

      . . . your ignorance is alarming.

  24. Re:only if you know you're in-route to a home-run. by Fnord666 · · Score: 1

    Of course if you're only trying to get to first, a straight line might be advised.

    Huh? You're trying to get to who?

    I don't know!

    --
    'The tyrant will always find pretext for his tyranny.' - Aesop's Fables
  25. Re:Hitting the brakes slows you down. by JWSmythe · · Score: 3, Interesting

        Exactly. He takes visual queues from the opposition players and coaches. Do I keep going, or do I stop. The decision for all four bases can't be made as soon as he contacts the ball. He hits it, he runs for 1st. Is it safe to go for second? Continue on, but that decision is made at or near 1st base.

        The only time a decision like that can be made is if he hits a home run, over the wall. Then speed isn't of the essence, he could walk it if he so desired.

        Optimal speed lines are used in race car driving though. Generally you come into the turn on the outside, go towards the apex, and drift out to the outside again. Obvious exceptions apply. Is there another car in the way? What is the next turn after this one? Driving on a street-type course, there was a set of four turns in a snake pattern. Instead of taking each turn properly, I lined up with the center of the overall pattern. It left a little bumping as I nudged the curbs (slight angles, not hard curbs like a neighborhood street would have). Instead of doing 60mph through there, I could do over 90. Anyone behind me, even if they were in an equally powered car, would be far behind me by the time I left that part of the course.

        Lots of planning goes into automobile racing, since I'm not waiting to see if the ball I hit is coming in from the outfield. My only concerns were the maximum speed I could take turns with no choices (like above), and other cars on the track. I can't do 90 through that pattern if there's a car doing 60 through it ahead of me, weaving through the whole thing "properly". With that in mind, I would try to be the first car of a group through it, just so I didn't have to slow down. In professional racing, all the drivers would have already known the best way through, so part of that would be eliminated, unless it was a car about to be lapped. In those cases, he'd be flagged over to allow the faster cars through, but you don't always get that luxury on street-track type courses.

    --
    Serious? Seriousness is well above my pay grade.
  26. Re:Baseball is still a shitty sport. by Ethanol-fueled · · Score: 4, Insightful

    LOL troll.

    Nah, you have a good point. Baseball was the only sport to require an organist to fill in the boring parts.

    Modern baseball games are even worse. Even live, only a fifth of the game is actual baseball. The rest is filler provided by the jumbotrons and sound systems. The only redeeming qualities of going to meatspace MLB games are getting really drunk and laughing inside about how our kids don't fully understand the meaning of the popular song Hey-oh that's being played every 5 seconds over the PA.

  27. Re:only if you know you're in-route to a home-run. by YrWrstNtmr · · Score: 1

    Of course if you're only trying to get to first, a straight line might be advised.

    Huh? You're trying to get to who?

    What?

  28. This sounds like a job for... by sirrunsalot · · Score: 1

    Calculus of Variations! Seriously, it's a fascinating subject. See Brachistochrone. It also ties in closely with optimal control and such subjects. There are some fascinating, counterintuitive results. A professor described a researcher who had used this to calculate the optimal (in some sense) ascent trajectory for a jet aircraft after takeoff. For the specific case, it wasn't even a monotonic climb!

  29. Re:Hitting the brakes slows you down. by ari_j · · Score: 1

    Is that rule a limitation on distance from the baseline or on distance from a line from the point you're at when the play is attempted to the base? That makes a bit of a difference.

  30. Re:only if you know you're in-route to a home-run. by scatter_gather · · Score: 1

    I don't know is on second.

  31. Stand Back! by Fareq · · Score: 1

    Stand Back! I'm going to try SCIENCE! ...

    so if you're standing within about 14 feet of the baseline, I might run you down. Seriously. Stand back!

  32. simpsons did it by __aatirs3925 · · Score: 1

    Well, they sorta did... I believe it was last week's episode where Lisa used calculations to get her players to play the game. I normally don't watch the Simpsons but it was 10/10/10 and I wanted to see if they would do something special for that day, which they did.

  33. Re:Hitting the brakes slows you down. by Shimmer · · Score: 2, Informative

    This whole scenario assumes the ball is still in the outfield, so no one can attempt to tag you out.

    --
    The most rabid believers in American Exceptionalism are the exact same people whose policies are destroying it.
  34. Re:Hitting the brakes slows you down. by froggymana · · Score: 1

    Did you even look at the FA? If look at the picture displaying how they should run it shows them curving through all 4 bases.

    --
    "To prevent this day from getting any worse, I'll just read ERROR as GOOD THING" 1GJU8xLuDKDxEs4KLf8fAGyptoDsqvEsBT
  35. Wrong answer, but the truth is easy to derive by junglebeast · · Score: 4, Insightful

    "At first you might think that a very slow, awkward runner should just walk directly from base to base, except that he'd likely fall down trying to make the sharp turn at first.."

    I would like to point something out.

    Making a 90 degree turn is physically impossible without coming to a complete stop. If a person immediately applies a force orthogonal to their current velocity, it would not result in a 90 degree turn in the path (but it would probably cause them to fall down). The only way to make a 90 degree turn is to come to a complete stop, then turn, then accelerate in the new direction. There would be no reason for the runner to fall down under these circumstances.

    Because our muscles exert a finite amount of force, and force is the time rate of change of momentum, and momentum is mass times velocity, the time required to come to a stop must be proportional to the velocity of the runner.

    This confirms the obvious fact that for a walker, the time that it takes to go from walking speed to a full stop is a fraction of a second, and hence there is no measurable time wasted in making a 90 degree turn, and no reason to walk anything other than the shortest path if you are walking.

    We know that the optimal path for a faster runner involves some overshooting, and this proves that there is a continuum of optimal paths that is dependent on velocity. It is also clear from Newton's first law, as I showed above, that running faster befits reducing curvature of the path. This applies to any velocity. Thus, in the limit as velocity goes to infinity, curvature becomes ever increasingly important, and hence in the limit the optimal path must be a circle.

    1. Re:Wrong answer, but the truth is easy to derive by u38cg · · Score: 1

      Asymptotic arguments are all very well, but I think we're somewhat short of infinitely fast runners.

      --
      [FUCK BETA]
  36. Re:I'm confused... by __aatirs3925 · · Score: 1

    You want to go around a giant U-turn so the fastest way is to come from the side in a big U instead of a V however there's a debate whether or not players can stray a farther than a certain distance from the bases. At least that's my interpretation of all this mumbo jumbo.

  37. Re:Hitting the brakes slows you down. by sumdumass · · Score: 4, Informative

    And just to be clear, the base line isn't the dirt path between the bases with the line painted on it forming the diamond shape. The base line in this rule is a line from the runners current position to the base when the defensive players are attempting to tag the runner out with the ball.

  38. Re:Hitting the brakes slows you down. by Nikker · · Score: 1

    You could always try the scientific approach. Try it while you are not actually in a game! You think a coach wouldn't run a drill with the whole team making them try it out with a stopwatch if he thought it could help him win a game? If it woks everyone will do it.

    --
    A loop, by its nature, continues. If that didn't make sense, start reading this sentence again.
  39. Re:Hitting the brakes slows you down. by Nikker · · Score: 1

    That rule is mostly to stop a player from running into the outfield trying to avoid a tag.

    --
    A loop, by its nature, continues. If that didn't make sense, start reading this sentence again.
  40. Re:Hitting the brakes slows you down. by coaxial · · Score: 1, Troll

    If that really worked, everybody would be doing it already.

    Tell that to Dick Fosbury.

    The researcher seems to expect ball players to gamble with every such run, betting their play on what the researcher thinks is "almost certain".

    If you've hit in the gap it's clear you're going to get a double. Everyone knows that.

    That means that, while trying to hit the ball, the player must know the tactics and maximum speeds of all the opponent fielders. I don't think that's going to happen.

    If only they had scouts and game film, and played like 162 games.

    In all seriousness, you've never watched a sporting event at any level have you?

  41. You could round the bases even faster by EdipisReks · · Score: 1

    with meth.

    1. Re:You could round the bases even faster by darthdavid · · Score: 1

      I don't pay much attention to sports news but I think the MLB not only beat you to it but got called in front of congress over the whole thing. I think it ended up with Barry Bonds screaming about 'the spiders' or something...

  42. Re:only if you know you're in-route to a home-run. by DavidRawling · · Score: 4, Funny

    No, Who is on first, What is on second. I Don't Know is on third. FFS what do they TEACH you kids these days?

    Now get off my lawn!

  43. Re:Hitting the brakes slows you down. by Vegemeister · · Score: 5, Funny

    It is thus obvious that this rule should be repealed, and, furthermore, "Take Me Out to the Ball Game" should be replaced in all occurrences with "Yakety Sax".

  44. Re:Hitting the brakes slows you down. by guanxi · · Score: 1

    You get a hit, you run straight for 1st. If after arriving you can keep going, you curve over to second. Unless you belted it out of the park (and are therefore in little hurry) it's unlikely you can get further than that, but anybody going on to 3rd will make another wide curve.

    Actually, you know roughly how far you're going to get around the bases depending on where the ball goes. If it goes over the CF's head, it's probably a triple. If it reaches the wall otherwise, it's probably a double. If not, a single. At least, that's the case in the major leagues. YMMV.

  45. Tagging up on 3rd by thewils · · Score: 1

    I often wondered why, if a runner is on say, 3rd and the batsman hits a long fly ball (but not a homer), why does the runner wait at 3rd to tag up, instead of backing up a few paces so that he can hit 3rd base at full tilt just as the fielder catches the ball. This would easily give him 2 or 3 if not more strides jump and he should be safe at home more frequently. In a game of fractions of a second, this would be a clear advantage.

    --
    Once I was a four stone apology. Now I am two separate gorillas.
    1. Re:Tagging up on 3rd by Fred+Ferrigno · · Score: 1

      That might make sense if they were certain the ball is going to be caught, but usually they advance a little bit so they're that much closer to home in case the ball isn't caught.

    2. Re:Tagging up on 3rd by thewils · · Score: 1

      Doesn't make sense...if they hit 3rd running at the instant the ball is caught or dropped, they still have a jump from a stationary start.

      --
      Once I was a four stone apology. Now I am two separate gorillas.
    3. Re:Tagging up on 3rd by Overzeetop · · Score: 1

      To gain the maximum effect, you would need to know how far to back up, since different flight paths of the ball take different times. More importantly, you can't be wrong by even a fraction of a second the wrong direction or you will not have "tagged up" after the ball was dropped. This latter bit is probably the most important point, especially since you must be seen tagging up after the ball is dropped.

      My supposition is that the error involved is greater than amount of time gained on the trip towards home plate, and the number of actual plays made at home which involve the timing difference does not compensate for the added risk.

      --
      Is it just my observation, or are there way too many stupid people in the world?
    4. Re:Tagging up on 3rd by Fred+Ferrigno · · Score: 1

      If the ball is dropped, you don't have to hit third at all. You can advance a little bit before the ball hits the ground and then you don't have to run as far. You can even start running if you're really sure the ball won't get caught. The advantage is probably better than just getting a running start from the base.

      Another thing is that if you're starting out behind the base, you have to time your start such that you hit the base after the ball is caught, but not so long after that you waste the benefit of a running start. It's already hard to time a tag up, this just makes it that much more likely that you'll mistime it.

  46. Re:Hitting the brakes slows you down. by guanxi · · Score: 3, Insightful

    Exactly. He takes visual queues from the opposition players and coaches. Do I keep going, or do I stop. The decision for all four bases can't be made as soon as he contacts the ball. He hits it, he runs for 1st. Is it safe to go for second? Continue on, but that decision is made at or near 1st base.

    Why does everyone keep repeating this? It's not true. I'm not a major league player, but after watching a good number of games, I assure you that I, most fans, and every major league player knows, very likely, what base they will reach when it becomes apparent where the ball will land. Sorry to repeat myself:

      * Over the centerfielder's head: Triple
      * Reaches the wall elsewhere: Double
      * Doesn't make it past the outfielders: Single

    If the defense tries to make a play on another runner, you might take an extra base, and there are a few other variables, but the above is pretty reliable. Think how many times a major leaguer has hit a ball: It's not like they have no idea what is going to happen, or that they won't make it past first when they hit it a line drive off the wall in left-center.

  47. Re:Hitting the brakes slows you down. by digitig · · Score: 1

    The article you link points out that the Fosbury Flop was a response to changed landing surfaces and that many high-jumpers were experimenting at that time.

    --
    Quidnam Latine loqui modo coepi?
  48. Re:Its against the rules by honkycat · · Score: 3, Informative

    Incorrect. As long as you're not "making a mockery of the game" (I believe that's the term, but it may be something roughly equivalent), until a defensive player attempts to make a tag, you are free to run absolutely anywhere you like. Once the tag is attempted, you are restricted to remain within 3 feet of the line connecting your current position to the next (or previous) base. This running strategy would quite easily be allowed within the rules.

  49. Re:And then the umpire probably calls you out by 93+Escort+Wagon · · Score: 1

    I thought that too, but wikipedia and other online sources say that this only applies when a defensive player is attempting to make a play on the runner.

    Maybe the Wikipedia guys should, I don't know, WATCH a little baseball?

    As this rule has been interpreted, there doesn't have to be an attempted tag - the umpire just needs to think the player is running out of the acceptable baseline (that line between the player and the next base) with the intention of avoiding a potential tag.

    There are a lot of rules like this in baseball, where the strictly literal interpretation is not how the game plays out in the real world. Here's another example - catchers blocking home plate well before they've received a throw. They do this all the bloody time, and it's technically against the rules (they're not supposed to do this until they're in possession of the ball, according to rule 7.06b).

    --
    #DeleteChrome
  50. Liners should always be run as doubles+ by telso · · Score: 1

    A lot of commenters seem to think this is a bad idea, but once you're sure you hit the ball over the infield, you should be running as if you've got at least a double, as your single is essentially guaranteed regardless of how you run (unless they catch your fly ball, in which case you're out anyway). Most ball players can immediately tell the difference between hitting the ball into the infield and hitting it over them (and if it goes through on the ground, the first base coach should be telling you what to do).

    Also, to clear up the rule question everyone's asking (I've been an ump for >10 years): so long as no one is trying to tag you out, you can go out as far from the diamond as you want. What you can't do: go inside the diamond. (Also: if you overrun first, even if you curve to the left (or right) as you run past the base, you can't be tagged out unless the ump thinks you've made a break for second, so even fewer worries with this strategy.)

    1. Re:Liners should always be run as doubles+ by Reziac · · Score: 1

      Now I'm wondering how far any ML'er has been seen running from the baseline, albeit perhaps with the added incentive of a brain cramp. :)

      Where do you ump, what level? I'm a big fan of good umpires, myself.

      --
      ~REZ~ #43301. Who'd fake being me anyway?
  51. Slashdotters talk baseball by guanxi · · Score: 5, Insightful

    This is pretty funny. If we were talking about Halo, we wouldn't see so many naive claims and theories, and so many of them moderated up! Instead of replying to each one, let me clarify a few points:

    A major league batter knows the base he'll likely reach as soon as he knows where the ball will land. Having seen many thousands of hits, he can make a pretty good judgement pretty quickly. I've merely watched the games, and I can tell you well before the ball lands. It's all done without any math or calculations, if you can believe it, just rules of thumb based on experience:
      * Over the center-fielder's head is a triple
      * Reaching the wall elsewhere: a double
      * Doesn't get by the outfielders: a single.

    There are variables from that 'baseline': The defense could make a play on another baserunner, giving the batter the chance to get another base. Fielding mistakes, and sometimes a hard hit, a very fast/slow runner, or a very good/bad arm can make a difference of a base, but it's rare.

    For the other question, I really don't know for sure. Baserunners are regularly outside the baselines, but I've rarely seen a baserunner go that far out unless he was avoiding a tag, taking out a fielder in a double-play, or over-running first base. But they sometimes round bases pretty widely without being called out. The rules are more complicated than they appear and the umps have discretion. I don't know for sure, but I doubt they'd be called out unless they were avoiding a tag or interfering with a fielder. I wouldn't depend on an answer that didn't come from an umpire.

    I'm just a long-time avid baseball fan. I'm surprised I don't see more on /.; baseball depends heavily on a very controlled environment (batter vs pitcher) and is accessible to extensive statistical analysis. For those interested, I recommend Baseball Prospectus, Baseball Think Factory, the Society for American Baseball Research (SABR), and the writings of Bill James, the great modern popularizer of the statistical analysis of baseball (I think of him as the Bruce Schneier of baseball -- very insightful, clear analysis). Now, back to your regularly scheduled News for Nerds ...

    1. Re:Slashdotters talk baseball by seandiggity · · Score: 1

      I'm surprised I don't see more on /.; baseball depends heavily on a very controlled environment (batter vs pitcher) and is accessible to extensive statistical analysis. For those interested, I recommend Baseball Prospectus, Baseball Think Factory, the Society for American Baseball Research (SABR), and the writings of Bill James, the great modern popularizer of the statistical analysis of baseball (I think of him as the Bruce Schneier of baseball -- very insightful, clear analysis).

      /. has enough problems, it doesn't need to become Professor Frink's crew hanging out in the back of Moe's: http://en.wikipedia.org/wiki/MoneyBART

      ^ ...everyone cared so much about the Banksy couch gag that no one watched the episode :P

      --
      Geeks like to think that they can ignore politics, you can leave politics alone, but politics won't leave you alone.-rms
  52. Re:And then the umpire probably calls you out by AK+Marc · · Score: 1

    The penalty for obstruction at the plate is awarding the next base. So if they enforced the rule, the result would be the same as if they didn't. So why bother?

  53. The underlying irony by Phopojijo · · Score: 1

    There's something deliciously ironic about math helping people get to 3rd base quicker.

  54. Re:only if you know you're in-route to a home-run. by interkin3tic · · Score: 1

    Of course if you're only trying to get to first, a straight line might be advised.

    Huh? You're trying to get to who?

    Rather, who is only trying to make out? I'm always trying to have sex.

    Wait... we weren't ACTUALLY talking about baseball, were we?

  55. What about momentum from the swing? by jschen · · Score: 1

    Take a right-handed batter. The swing will turn the batter toward third, making the run toward first naturally start toward the inside of the diamond. On the other hand, a left-handed batter will naturally start on a more outward trajectory. I wonder if this is a quantifiable advantage in doubles statistics for left-handed batters after accounting for factors like the shorter distance to first base from the left-handed batter's box.

  56. Genes by benjamindees · · Score: 1

    I wonder if really good base runners have a left leg that is shorter than their right leg. Like all the tennis players with one arm that's like three times as big as the other one.

    --
    "I assumed blithely that there were no elves out there in the darkness"
  57. Re:Its against the rules by fractoid · · Score: 1

    With respect to first base it makes no sense to run anything other than in a straight line to first base as any other distance would be longer and hence for a runner's greatest speed would be slower increasing the probability he would be called out as it gives fielders more time to throw the ball to the first baseman tor the force out.

    1) Have a comma or four, old chap: ",,,,"
    2) If you know you're not stopping at first (which I believe is the assumption here), then it seems it's quicker to swing wide early so you can round off the corner and get to 2nd and beyond quicker.

    --
    Rampant carbon sequestration destroyed the Dinosaurs' tropical paradise. I'm here to help repair the damage.
  58. Actually, quite a bit of science is involved. by Anonymous Coward · · Score: 1, Insightful

    But like in most real-time decision-making scenarios, a lot of it is gamed out and optimized ahead of time. Check these out:

    http://www.amazon.com/Physics-Baseball-3rd-Robert-Adair/dp/0060084367

    http://www.baseballcalculus.com/articles.php?name=brad

  59. Re:Hitting the brakes slows you down. by FranTaylor · · Score: 2, Informative

    * Reaches the wall elsewhere: Double

    Not in Fenway Park. If it bounces hard off the Green Monster then it's a single. Hard line drives that are home runs in other parks are singles at Fenway.

  60. Re:only if you know you're in-route to a home-run. by Nialin · · Score: 1

    Many should appreciate this: Shakespearean Who's On First

  61. He can be called out on appeal, that's why. by dtmos · · Score: 3, Informative

    Rule 7.10(a):

    "Any runner shall be called out, on appeal, when --
    (a) After a fly ball is caught, he fails to retouch his original base before he or his original base is tagged;
    Rule 7.10(a) Comment: "Retouch," in this rule, means to tag up and start from a contact with the base after the ball is caught. A runner is not permitted to take a flying start from a position in back of his base."

    In case you're curious about the relevance of comments, there is this note in the Official Rules Foreword:

    "The Playing Rules Committee, at its December 1977 meeting, voted to incorporate the Notes/Case Book/Comments section directly into the Official Baseball Rules at the appropriate places. Basically, the Case Book interprets or elaborates on the basic rules and in essence have the same effect as rules when applied to particular sections for which they are intended."

  62. Re:Hitting the brakes slows you down. by fotoguzzi · · Score: 1

    The article points out that the fielders would make sure to park themselves in the most efficient basepath.

    I will have to watch on television to see if hitters/baserunners ever go outside the outer chalked line that guides the runner outside of the diamond on the way from home plate to first base. It is mandatory that the runner stay outside of the diamond on the second half of this leg except for touching first base, which is inside the diamond. If the first baseman keeps to the inside of the base, there is little chance of a collision with the runner. As has been stated in comments, the runner is free to collide with the other basemen as long as he is heading directly toward the base.

    The kids I played baseball with would never have thought of going outside the outer chalked line even on a sure double, but there seems to be no rule against it.

    --
    Their they're doing there hair.
  63. Mathematics research is NOT a video game... by epine · · Score: 1

    I agree with the guy a few posts back.

    Even when it seems "obvious" (off the wall, etc) you almost always base the decision to go to 2nd from the 1st conference presentation. You make contact, start running at fast as you can, everyone starts looking, and you are basically over 1/2 way to 1st base before anyone figures out whether the result has merit. And a lot of the time you are not the only one running - you (and your faculty advisers) have to look out for other runners, figure out what they are going to do, and guess the composition of the peer review panel, etc, to know whether the paper will be accepted for publication.

    Trying to plan for the exact base and route to it (beyond the usual wide turn that any little leaguer already knows) from the moment you make contact is about as useful as planning where you are going to swing before the pitch. Mathematics research is NOT a video game...

    Now it all makes sense. The paper is actually a parody on outcome-based research investment as depicted in the red states.

  64. Bad Science = Bad Baseball by RecursiveLoop · · Score: 1

    Why nerds are not Jocks.... In a real game of baseball, there are only 2 instances where a runner tries to run the entire 4 bases: 1) a home run, in which case NO ONE is trying to complete the loop as fast as possible, heck its more aptly named the home-not-so-brisk-jog. 2) an inside the park home run. While aptly applied, the number of times this situation is attempted, much less completed is so infinitesimally small, if kinda makes this junk science. Furthermore, this idea assumes that the runner is aware of the necessity of obtaining an inside the park home run path (as opposed to say a straight line single) from the time he leaves the batters box. This is simply never the case, a typical inside the park home run is usually a stand up double or stretched triple and during the base running the runner must make 2-3 judgment calls as to the prospects of reaching the next base successfully and usually occurs through some unforeseeable bounce in the outfield or fielding bordering on an error. Therefore, in all but a fraction of a percent of plays, following this path will actually cost runners time, bases and outs. Furthermore, in the instance of a single, where from leaving the box the runner understands extra bases will not be an option, the straight line reigns supreme. The only instance where this applies is when leaving the batters box, where at least a stretched double is assumed. Again providing inside the park home runs occur so infrequently that a four base path should be completely omitted from calculations because it would disproportionately and adversely effect the 2 and 3 base runs. Basically apply the distance/speed algorithm used here to a triple and again for a double both will end up different from the 4 base version and each other, merge these two paths weighted based on the proportionality of doubles hit to triples hit. Thats is the path to be followed. furthermore, overlay the double and tripple paths ontop of the combined paths to allow the runner to deviate from the combined path at any point during the run to accommodate for an assumed more expected result which can be judged multiple times during the run. Now that would be applied science.

  65. Re:Hitting the brakes slows you down. by kdekorte · · Score: 1

    The baseball rules state that you need to be within 3' of the vector between the base you are leaving to the base you are going to, if a defensive player is trying to make a play on the base runner. That could be why the runners do not run so wide.

  66. Re:only if you know you're in-route to a home-run. by CoolGopher · · Score: 1

    No you don't! You throw it to who!

  67. Misleading article title by noidentity · · Score: 1

    Who else read the article and thought it had something to do with rounding numbers in different bases?

  68. Re:Baseball is still a shitty sport. by echucker · · Score: 2, Insightful

    One fifth is still better than the NFL, which I believe hovers around one eighth. That's half of the reason I watch hockey - play is always moving when the clock is running. Even when the clock isn't running, stoppages rarely take more than 30 seconds.

  69. Re:Hitting the brakes slows you down. by Attila+Dimedici · · Score: 1, Informative

    The thing is, if a batter waits to see where the ball lands (will land) before he starts running for first base, he is unlikely to make it as far as you project from the final landing spot. Another factor is one of the rules of baseball. If a player runs straight to first base and over runs it, he is safe as long as he touched first base before a player holding the game ball touches first base. If however, a base runner rounds first base towards second base, an opposing player with the ball can tag him out.
    Basically, to maximize his chances of getting on base, a batter must start running for first base as soon as the ball leaves his bat. Since at that moment he does not know where the ball will land, his optimum decision is to start running straight for first base. If while he is running, he realizes that the ball will land where he will be able to get extra bases, he can then curve out toward the optimal path for going for extra bases.

    --
    The truth is that all men having power ought to be mistrusted. James Madison
  70. Re:Hitting the brakes slows you down. by baryluk · · Score: 1

    Well it is quite straightforward calculations to optimize path, and could be easly done even 50 years ago. There is probably some reasons nobody done and used this results, it already.

  71. intuitive by ebonum · · Score: 1

    Any math teacher should know this:
    http://en.wikipedia.org/wiki/Brachistochrone_curve

    In brief, the Brachistochrone problem asks: what is the shortest time between two points. I'm simplifying a bit. It isn't always a straight line!

    It should be fairly obvious to anyone in academia that the solution presented intuitively makes sense. Assuming that the goal is only to round the bases as fast as possible.

    I do have to add that it seems sad that professors these days solve problems with mathematical modeling instead of equations.

  72. Re:Hitting the brakes slows you down. by nabsltd · · Score: 1

    I'm not a major league player, but after watching a good number of games, I assure you that I, most fans, and every major league player knows, very likely, what base they will reach when it becomes apparent where the ball will land.

    You really haven't watched enough baseball games, and the article admits that the people that did the math aren't really familiar with baseball, either. The variables involved are far larger than most people would realize.

    First, the assumption is that either there are no runners on base or that there are two outs.

    Second, not just speed of the fielders but their quality (e.g., will they play a carom correctly, do they have a strong and accurate arm) determines whether taking another base is realistic.

    Third, the speed of the runner will greatly change the equation. The very fastest runner might need a very wide circle, but much slower runners will not benefit from the wide turn.

    Last, as the article briefly notes, runners already do all these calculations in their head and adjust their basepath optimally. Even the most casual viewer of baseball will notice that a runner leads off second not only towards third, but towards left field. In other words, they are positioning themselves close to the correct location on the curve in the article. And, again, even the most casual viewer will also know why this cannot be done at first base.

  73. Re:only if you know you're in-route to a home-run. by rah1420 · · Score: 1

    >why are adults still playing this kiddie game?

    Because there's apparently money to be made. More to the point, because there are people who pay to WATCH them play this kiddie game.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens.
  74. Re:Hitting the brakes slows you down. by Larryish · · Score: 1

    Dude, you are sooooo over-thinking this one.

    Everybody should just HIT THE BALL AS HARD AS THEY CAN, and then RUN LIKE THE WIND!!!!!11

  75. Re:Hitting the brakes slows you down. by Don+Sample · · Score: 1

    An experienced batter will have a pretty good idea where the ball is going to land, from the moment it leaves his bat. He will know whether he's going to have to really hustle to get to first base before the ball does, or if he might have a chance at second. If he's got a chance of making second, he doesn't have to take the fastest path to first, to be sure of getting that far. And if he's still thinking that he may be able to make second base by the time he's half way to first, he should still be able to round first base toward second, and then put the brakes on, and get back to first before the ball does.

  76. Re:Baseball is still a shitty sport. by theantipop · · Score: 1

    Since when is a sport required to maintain a frantic pace to be entertaining? I think most people watch a sport based on what happens when there is action not how often those actions occur.

  77. Re:Hitting the brakes slows you down. by Attila+Dimedici · · Score: 4, Interesting

    There is something to what you say. However, what an experienced batter won't know is how the fielder will choose to play the ball. That means that the batter doesn't know if it will be over the fielder's head or not. Additionally, that knowledge of where the ball will land is really only true in his home park. Over the course of this past baseball season, I saw several occasions where a home team batter got an extra base because of where the ball landed that on another night a visiting team batter did not. The reason for this was that the home team batter knew that the ball hit to that spot would take a tricky bounce while the visiting team batter did not. This was compounded by the fact that the home team fielder also knew that the ball would take a tricky bounce and the visiting team fielder did not (I only noticed this particular occurrence because the announcers pointed it out, but in future games after that I noticed that the home team fielders consistently fielded balls hit to that area better than visiting team fielders).

    --
    The truth is that all men having power ought to be mistrusted. James Madison
  78. Re:Hitting the brakes slows you down. by Reziac · · Score: 1

    You evil person.. now I'm gonna be hearing Yakety Sax for the rest of the night!! ;}~

    --
    ~REZ~ #43301. Who'd fake being me anyway?
  79. Re:Hitting the brakes slows you down. by Altus · · Score: 1

    taking a wide swing at first is a gamble. If the right fielder cuts off that ball in the gap they can throw the ball behind the runner making a big turn at first base and get them out. You are only allowed to over run first base if you are going straight, if you make the turn you are considered to be heading to second and can be thrown out at first. It doesn't happen much, but then runner usually don't gamble on a double until they are sure.

    The difference in run expectancy for a man on second vs a man on first is at best about a quarter of a run so you would have to make it to second fairly often vs the number of times you get thrown out for this to be worth while. I figure it would be pretty close to the success rates calculated for stealing second.

    Still, it is possible that slightly wider paths are used by the best base runners without getting quite to this extreme case of going for a double on every ball out of the infield. Maybe some of the faster players who hit a lot of doubles are already employing some of these tactics when the are "Thinking double right out of the box."

    --

    "In America, first you get the sugar, then you get the power, then you get the women..." -H. Simpson

  80. Re:Hitting the brakes slows you down. by Altus · · Score: 1

    yea, 18 feet away the second baseman would just have to have the ball in hand for you to be called out.

    --

    "In America, first you get the sugar, then you get the power, then you get the women..." -H. Simpson

  81. Re:Hitting the brakes slows you down. by markhb · · Score: 2, Insightful

    Not to mention "hits the wall near Pesky's Pole and before the fielder can react it's scuttled like a rat all the way to the bullpen." Inside-the-park home run in that case if you're a decent runner.

    --
    Save Maine's economy: write stuff down. All comments are exclusively my own, not my employer.
  82. Re:Hitting the brakes slows you down. by Altus · · Score: 1

    Yea, but if the ball doesn't get past the outfielders, which would pretty much assure a double anyway, it will be in the hands of the second baseman very quickly, likely before the runner reaches second base.

    --

    "In America, first you get the sugar, then you get the power, then you get the women..." -H. Simpson

  83. Re:Hitting the brakes slows you down. by Altus · · Score: 1

    by the time the ball has gotten through the gap, the player should already be part of the way to first base. If you started curving out before it actually gets through the gap then you are subject to ichiro flying out of right field, grabbing the ball and throwing it to first behind you while you are making your wide turn.

    That said, sometimes you really do know that the ball is a double right off the bat, like when its on a line into the gap. Maybe in those cases players could take a slightly different route, my guess is that they already do, but it might not be as extreme as it could be in the optimal case.

    --

    "In America, first you get the sugar, then you get the power, then you get the women..." -H. Simpson

  84. Re:Baseball is still a shitty sport. by Altus · · Score: 1

    And to play baseball all you need is the hand eye coordination of an ace fighter pilot (plus fast legs and a strong arm are nice).

    I see what you mean though. If someone the size of Dustin Pedroia can win an MVP then at least the game isn't contingent upon a particular extreme body type.

    --

    "In America, first you get the sugar, then you get the power, then you get the women..." -H. Simpson

  85. Re:Hitting the brakes slows you down. by shermo · · Score: 1

    The only time that a very small gain in getting to second base would help you is when you're transitioning from a 'can't quite get to second base in time' state to a 'can just get to second base in time' state.

    If you're in the 'can't quite get to second base in time' state doesn't it follow that you're also in a 'easily got to first base in time' state?

    So in this state, does it really matter if you misjudge the fielder and take marginally longer to get to first base?

    --
    Insanity: voting in the same two parties over and over again and expecting different results
  86. Rounding the Bases Faster, With Meth by kamiikoneko · · Score: 1

    Thought that's what it said at first. I'm wrong.