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Most strikeouts per 9 innings by a pitcher in a Major League Baseball (MLB) season

Most strikeouts per 9 innings by a pitcher in a Major League Baseball (MLB) season
Who
Aroldis Chapman
Where
United States
When
10 November 2014
Aroldis Chapman (Cuba) set a Major League Baseball (MLB) record of 17.67 strikeouts per 9 innings while pitching for the Cincinnati Reds (USA) in 2014. Chapman recorded 106 strikeouts in 54 innings to break the previous mark of 16.7 set by Craig Kimbrel (USA) of the Atlanta Braves (USA) in 2012.