The Rays set a major league record when Brad Boxberger strikes out Ichiro Suzuki of the Yankees in the 12th inning of a 4 – 3 win. Ichiro’s is the 287th strikeout by a Rays pitcher in June, beating by one the record for most K’s in a month set by the Cubs in August of 2002.

On June 30, 2014 The Rays set a major league record when Brad Boxberger strikes out Ichiro Suzuki of the Yankees in the 12th inning of a 4 – 3 win. Ichiro’s is the 287th strikeout by a Rays pitcher in June, beating by one the record for most K’s in a month set by the Cubs in August of 2002.

Source
Baseball Reference June 30