This one is pretty basic, but I figured I could show where it came from and some information on league averages and player averages. This is considered one of the leading stats to see how lucky or unlucky a pitcher has been. While Keith Isley wrote an article last year trying to show that pitchers do have some control over there BABIP averages.
Here is the basic equation:
BABIP= (H-HR)/(AB-K-HR+SF)
Many believe that the result after enough batters faced should fall around .290 as that is around the league averages for balls put in play. Over the course of a career the players BABIP should fall in this area, but I think on what side of that value can be affected by a pitchers ability. A pitcher like Chris Young who last year was successful with a .252 BABIP, but his career mark in 607+ IP is .268 so he seems to have some control of his. While on the other side Doug Davis has a career BABIP of .311 and has averaged higher than .320 since 2006.
BABIP is one good measure of luck, but just because a pitcher has a BABIP of .369 like Arroyo does not mean he will be at .300 by seasons end. Last year 3 pitchers with qualified number of innings pitched finished above .340. Their career numbers fall around .300-.310.
This shows that although they will normally fall around the .290-.300 mark that one year is not enough time to judge BABIP.
0 comments:
Post a Comment