Jim Lonborg
P · Born April 16, 1942
Age in each postseason series
- 1967 World Series (October 4, 1967), Red Sox vs Cardinals 3–4: 25 years, 171 days
- 1976 NLCS (October 9, 1976), Phillies vs Reds 0–3: 34 years, 176 days
- 1977 NLCS (October 4, 1977), Phillies vs Dodgers 1–3: 35 years, 171 days
Age in each season
- 1965 (Red Sox): 22 years, 350 days to 23 years, 168 days
- 1966 (Red Sox): 23 years, 350 days to 24 years, 168 days
- 1967 (Red Sox): 24 years, 350 days to 25 years, 168 days
- 1968 (Red Sox): 25 years, 351 days to 26 years, 168 days
- 1969 (Red Sox): 26 years, 350 days to 27 years, 168 days
- 1970 (Red Sox): 27 years, 350 days to 28 years, 168 days
- 1971 (Red Sox): 28 years, 350 days to 29 years, 168 days
- 1972 (Brewers): 29 years, 351 days to 30 years, 168 days
- 1973 (Phillies): 30 years, 350 days to 31 years, 168 days
- 1974 (Phillies): 31 years, 350 days to 32 years, 168 days
- 1975 (Phillies): 32 years, 350 days to 33 years, 168 days
- 1976 (Phillies): 33 years, 351 days to 34 years, 168 days
- 1977 (Phillies): 34 years, 350 days to 35 years, 168 days
- 1978 (Phillies): 35 years, 350 days to 36 years, 168 days
- 1979 (Phillies): 36 years, 350 days to 37 years, 168 days