Ken Boyer
3B · Born May 20, 1931
Age in each postseason series
- 1964 World Series (October 7, 1964), Cardinals vs Yankees 4–3: 33 years, 140 days
Age in each season
- 1955 (Cardinals): 23 years, 316 days to 24 years, 134 days
- 1956 (Cardinals): 24 years, 317 days to 25 years, 134 days
- 1957 (Cardinals): 25 years, 316 days to 26 years, 134 days
- 1958 (Cardinals): 26 years, 316 days to 27 years, 134 days
- 1959 (Cardinals): 27 years, 316 days to 28 years, 134 days
- 1960 (Cardinals): 28 years, 317 days to 29 years, 134 days
- 1961 (Cardinals): 29 years, 316 days to 30 years, 134 days
- 1962 (Cardinals): 30 years, 316 days to 31 years, 134 days
- 1963 (Cardinals): 31 years, 316 days to 32 years, 134 days
- 1964 (Cardinals): 32 years, 317 days to 33 years, 134 days
- 1965 (Cardinals): 33 years, 316 days to 34 years, 134 days
- 1966 (Mets): 34 years, 316 days to 35 years, 134 days
- 1967 (White Sox, Mets): 35 years, 316 days to 36 years, 134 days
- 1968 (Dodgers, White Sox): 36 years, 317 days to 37 years, 134 days
- 1969 (Dodgers): 37 years, 316 days to 38 years, 134 days