MLB Postseason Single-Season Strikeouts Record Progression

Year	Player	SO	Stood for
2001	Curt Schilling	56	still standing
1998	Kevin Brown	46	3 years
1997	Mike Mussina	41	1 year
1968	Bob Gibson	35	29 years
1964	Bob Gibson	31	4 years
1926	Willie Foster	29	38 years
1903	Bill Dinneen	28	23 years

The earliest marks here are records only in the sense that nobody had done better yet. Season length, schedule and the rules themselves have all changed, so a figure from the 1870s is not comparable with a modern one and is not offered as though it were.