Library Update: BABIP

One of the most commonly cited sabermetric statistics for hitters and pitchers is Batting Average on Balls in Play (BABIP) and our Library entry on BABIP is newly renovated. Not only does the entry now contain the BABIP equation, which was previously absent (oops!), but it walks you through a more nuanced explanation of why we care about BABIP and how to use it responsibly.

We have a BABIP entry in the Offense and Pitching sections of the Library but the entries are the same, so clicking to either will do.

Click over to the Library for a full breakdown, but feel free to post questions about BABIP here. We also have a post going up in the Library blog today that illustrates the importance of BABIP and the concept of luck, so feel free to post questions there as well. You can also reach out to me on Twitter @NeilWeinberg44 or stop by our weekly Q&A chat Wednesdays at 3pm eastern to ask questions about advanced stats or the site’s features.

We hoped you liked reading Library Update: BABIP by Neil Weinberg!

Please support FanGraphs by becoming a member. We publish thousands of articles a year, host multiple podcasts, and have an ever growing database of baseball stats.

FanGraphs does not have a paywall. With your membership, we can continue to offer the content you've come to rely on and add to our unique baseball coverage.

Support FanGraphs

Neil Weinberg is the Site Educator at FanGraphs and can be found writing enthusiastically about the Detroit Tigers at New English D. Follow and interact with him on Twitter @NeilWeinberg44.

newest oldest most voted

I never knew bunts weren’t counting in BABIP calculations. Is there a specific reason for that? It does seem odd that bunts would not be counted, but bunt hits (and bunt popouts) would be.