How old were they?

Jim Beauchamp

1B · Born August 21, 1939

Age in each postseason series

1. 1973 World Series (October 13, 1973), Mets vs Athletics 3–4: 34 years, 53 days

Age in each season

1. 1963 (Cardinals): 23 years, 223 days to 24 years, 41 days
2. 1964 (Colt .45's): 24 years, 224 days to 25 years, 41 days
3. 1965 (Astros, Braves): 25 years, 223 days to 26 years, 41 days
4. 1967 (Braves): 27 years, 223 days to 28 years, 41 days
5. 1968 (Reds): 28 years, 224 days to 29 years, 41 days
6. 1969 (Reds): 29 years, 223 days to 30 years, 41 days
7. 1970 (Cardinals, Astros): 30 years, 223 days to 31 years, 41 days
8. 1971 (Cardinals): 31 years, 223 days to 32 years, 41 days
9. 1972 (Mets): 32 years, 224 days to 33 years, 41 days
10. 1973 (Mets): 33 years, 223 days to 34 years, 41 days