Frank Kostro
3B · Born August 4, 1937
Age in each season
- 1962 (Tigers): 24 years, 240 days to 25 years, 58 days
- 1963 (Angels, Tigers): 25 years, 240 days to 26 years, 58 days
- 1964 (Twins): 26 years, 241 days to 27 years, 58 days
- 1965 (Twins): 27 years, 240 days to 28 years, 58 days
- 1967 (Twins): 29 years, 240 days to 30 years, 58 days
- 1968 (Twins): 30 years, 241 days to 31 years, 58 days
- 1969 (Twins): 31 years, 240 days to 32 years, 58 days