A strikeout occurs when a third strike occurs during a a batter's turn at bat. A ball thrown for a third strike must, when there are already two strikes against the batter, be on either a pitch that is thrown and not swung at by the batter but which, in the umpire's judgement, passes through the strike zone, or a pitch that is swung on and missed by the batter. Normally, the batter is called out on the third strike, however under rare circumstances they may become a base runner even though they were struck out.
A strikeout is recorded as a statistic for both pitchers and for batters. For pitchers, strikeouts are normally abbreviated to K. It is an important measure of that pitcher's skill, because strikeouts do not rely on the ability of the fielders to catch a batted ball for an out, or to throw the runner (or batter who becomes a runner) out after playing a fair ball. For batters, a strikeout is recorded under SO, and the statistic has less importance, because many power hitters who hit a high number of home runs or who produce runs may still end up striking out often, because they tend to swing at pitches more often.
Batter strikeout records
The Bull League record for most strikeouts by a batter in a season was 217, set by Payton Bint in 2025 while playing for the Chicago Pit Bulls. The career record for strikeouts is held by Tony Cruz, with 1,511. Cruz played from 2008 to 2023 for New York and Milwaukee.
Pitcher strikeout records
The current Bull League record for most strikeouts in a single season is 290 set by Dan Kimbrough of the New York Dragons in 2025. It was the same season that he set the current single game strike out record at 19.
Most strikeouts in a game
The current single game record for strikeouts is 19, set by Dan Kimbrough of the New York Dragons. He accomplished the feat on September 17, 2025 in a nine-inning complete game for a 7-2 win against the Grand Rapids Hops. He faced 34 batters and threw 145 pitches.
|September 17, 2025||Dan Kimbrough||New York Dragons||Grand Rapids Hops||9.0 IP, 5 H, 2 ER, 2 BB, 19 K, 1 HR|