Jim Kaat
P · Born November 7, 1938
Age in each postseason series
- 1965 World Series (October 6, 1965), Twins vs Dodgers 3–4: 26 years, 333 days
- 1970 ALCS (October 3, 1970), Twins vs Orioles 0–3: 31 years, 330 days
- 1976 NLCS (October 9, 1976), Phillies vs Reds 0–3: 37 years, 337 days
- 1982 World Series (October 12, 1982), Cardinals vs Brewers 4–3: 43 years, 339 days
Age in each season
- 1959 (Senators): 20 years, 145 days to 20 years, 328 days
- 1960 (Senators): 21 years, 146 days to 21 years, 329 days
- 1961 (Twins): 22 years, 145 days to 22 years, 328 days
- 1962 (Twins): 23 years, 145 days to 23 years, 328 days
- 1963 (Twins): 24 years, 145 days to 24 years, 328 days
- 1964 (Twins): 25 years, 146 days to 25 years, 329 days
- 1965 (Twins): 26 years, 145 days to 26 years, 328 days
- 1966 (Twins): 27 years, 145 days to 27 years, 328 days
- 1967 (Twins): 28 years, 145 days to 28 years, 328 days
- 1968 (Twins): 29 years, 146 days to 29 years, 329 days
- 1969 (Twins): 30 years, 145 days to 30 years, 328 days
- 1970 (Twins): 31 years, 145 days to 31 years, 328 days
- 1971 (Twins): 32 years, 145 days to 32 years, 328 days
- 1972 (Twins): 33 years, 146 days to 33 years, 329 days
- 1973 (Twins, White Sox): 34 years, 145 days to 34 years, 328 days
- 1974 (White Sox): 35 years, 145 days to 35 years, 328 days
- 1975 (White Sox): 36 years, 145 days to 36 years, 328 days
- 1976 (Phillies): 37 years, 146 days to 37 years, 329 days
- 1977 (Phillies): 38 years, 145 days to 38 years, 328 days
- 1978 (Phillies): 39 years, 145 days to 39 years, 328 days
- 1979 (Yankees, Phillies): 40 years, 145 days to 40 years, 328 days
- 1980 (Cardinals, Yankees): 41 years, 146 days to 41 years, 329 days
- 1981 (Cardinals): 42 years, 145 days to 42 years, 328 days
- 1982 (Cardinals): 43 years, 145 days to 43 years, 328 days
- 1983 (Cardinals): 44 years, 145 days to 44 years, 328 days