J. C. Martin
C · Born December 13, 1936
Age in each postseason series
- 1969 NLCS (October 4, 1969), Mets vs Braves 3–0: 32 years, 295 days
- 1969 World Series (October 11, 1969), Mets vs Orioles 4–1: 32 years, 302 days
Age in each season
- 1959 (White Sox): 22 years, 109 days to 22 years, 292 days
- 1960 (White Sox): 23 years, 110 days to 23 years, 293 days
- 1961 (White Sox): 24 years, 109 days to 24 years, 292 days
- 1962 (White Sox): 25 years, 109 days to 25 years, 292 days
- 1963 (White Sox): 26 years, 109 days to 26 years, 292 days
- 1964 (White Sox): 27 years, 110 days to 27 years, 293 days
- 1965 (White Sox): 28 years, 109 days to 28 years, 292 days
- 1966 (White Sox): 29 years, 109 days to 29 years, 292 days
- 1967 (White Sox): 30 years, 109 days to 30 years, 292 days
- 1968 (Mets): 31 years, 110 days to 31 years, 293 days
- 1969 (Mets): 32 years, 109 days to 32 years, 292 days
- 1970 (Cubs): 33 years, 109 days to 33 years, 292 days
- 1971 (Cubs): 34 years, 109 days to 34 years, 292 days
- 1972 (Cubs): 35 years, 110 days to 35 years, 293 days