Question on BaBIP

[Ski]

I see this stat used with hitters sometimes (it means Batting Average on Balls in Play, right?) to see how lucky a hitter is. But aren't all hits "in play?" Shouldn't BA be the same as BaBIP? Or do Home Runs/GRDs not count as in play?

[wade]

I see this stat used with hitters sometimes (it means Batting Average on Balls in Play, right?) to see how lucky a hitter is. But aren't all hits "in play?" Shouldn't BA be the same as BaBIP? Or do Home Runs/GRDs not count as in play?

 

I know homers don't count because I made the mistake of assuming that before as well.

[imb]

home runs and strikeouts are not counted. I dont know about ground rule doubles, but no one player hits enough of those to make a difference anyway.

[jersey cubs fan]

home runs and strikeouts are not counted. I dont know about ground rule doubles, but no one player hits enough of those to make a difference anyway.

 

a ground rule double is in play initially.

[Roast]

I just added this to the NSBB Stat Dictionary thread in Cubs Discussions. According to Wikipedia, the formula for BABIP is:

http://upload.wikimedia.org/math/e/d/8/ed893b7b0405147c8498db6096fce17e.png

[DiamondMind]

I just added this to the NSBB Stat Dictionary thread in Cubs Discussions. According to Wikipedia, the formula for BABIP is:

http://upload.wikimedia.org/math/e/d/8/ed893b7b0405147c8498db6096fce17e.png

 

I didn't know that thread/page even existed. Thanks!