BABIP: The Luck Dragons, Part 2

In addition to dealing with variations in LOB%, pitchers may also have bad luck in the form of BABIP variations. BABIP -- or batting average on balls in play -- tends to stay very near .300 for pitchers. When it strays much higher than .300, a pitcher is usually unlucky. Likewise, as a BABIP approaches .000, a pitcher is usually increasingly lucky.
See the video explaining BABIP for hitters here: • Hitter BABIP: Yet More...