Most strikeouts in a Major League Baseball (MLB) match (extra innings)
- Who
- Tom Cheney
- What
- 21 total number
- Where
- Not Applicable
- When
- 12 September 1962
A total of 21 strikeouts were pitched in a 16-innings game by Tom Cheney (Washington, American League) playing against Baltimore in Baltimore, Maryland, USA, on 12 September 1962.
n/a