John Mayberry
1B · Born February 18, 1949
Age in each postseason series
- 1976 ALCS (October 9, 1976), Royals vs Yankees 2–3: 27 years, 234 days
- 1977 ALCS (October 5, 1977), Royals vs Yankees 2–3: 28 years, 229 days
Age in each season
- 1968 (Astros): 19 years, 43 days to 19 years, 226 days
- 1969 (Astros): 20 years, 42 days to 20 years, 225 days
- 1970 (Astros): 21 years, 42 days to 21 years, 225 days
- 1971 (Astros): 22 years, 42 days to 22 years, 225 days
- 1972 (Royals): 23 years, 43 days to 23 years, 226 days
- 1973 (Royals): 24 years, 42 days to 24 years, 225 days
- 1974 (Royals): 25 years, 42 days to 25 years, 225 days
- 1975 (Royals): 26 years, 42 days to 26 years, 225 days
- 1976 (Royals): 27 years, 43 days to 27 years, 226 days
- 1977 (Royals): 28 years, 42 days to 28 years, 225 days
- 1978 (Blue Jays): 29 years, 42 days to 29 years, 225 days
- 1979 (Blue Jays): 30 years, 42 days to 30 years, 225 days
- 1980 (Blue Jays): 31 years, 43 days to 31 years, 226 days
- 1981 (Blue Jays): 32 years, 42 days to 32 years, 225 days
- 1982 (Yankees, Blue Jays): 33 years, 42 days to 33 years, 225 days