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Sunday, March 24, 2013

Is Bill James Right about Ground Ball Pitchers and Injuries? | FanGraphs Baseball

Bill Petti’s initial study says he isn’t.

Jim Furtado Posted: March 24, 2013 at 08:56 AM | 4 comment(s) Login to Bookmark
  Tags: sabermetrics

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Statements posted here are those of our readers and do not represent the BaseballThinkFactory. Names are provided by the poster and are not verified. We ask that posters follow our submission policy. Please report any inappropriate comments.

   1. PASTE Thinks This Trout Kid Might Be OK (Zeth) Posted: March 24, 2013 at 12:55 PM (#4395267)
Oh good, so we can continue arguing about sentence spacing here, right?

One space after a period is the obvious Right Thing and DEATH TO THE INFIDELS.
   2. Robinson Cano Plate Like Home Posted: March 24, 2013 at 02:01 PM (#4395299)
I'm no statistician, but it seems to me there's a flaw in comparing 25% of the population to the other 75%, because one group is 3 times bigger.
   3. Tom (and his broom) Posted: March 24, 2013 at 02:40 PM (#4395317)
The bigger flaw is that James was talking about pitchers who were extreme GB pitchers, not the top 25% but the top 2-3%. Pitchers whose gb rates differed from the median by a much more statistically significant amount. And not coincidentally were extremely effective.

   4. GotowarMissAgnes Posted: March 24, 2013 at 03:21 PM (#4395331)
No flaw in comparing different sized groups, as long as you recognize they'll have different levels of variation.

The article looks at the top 10%, T(AHB). Now, maybe you want to argue that it has to be on the top 2-3%, but at that point you are getting down to numbers where it would be close to impossible to prove much of anything.

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