Dennis Eckersley
P · Born October 3, 1954
Age in each postseason series
- 1984 NLCS (October 2, 1984), Cubs vs Padres 2–3: 29 years, 365 days
- 1988 ALCS (October 5, 1988), Athletics vs Red Sox 4–0: 34 years, 2 days
- 1988 World Series (October 15, 1988), Athletics vs Dodgers 1–4: 34 years, 12 days
- 1989 ALCS (October 3, 1989), Athletics vs Blue Jays 4–1: 35 years, 0 days
- 1989 World Series (October 14, 1989), Athletics vs Giants 4–0: 35 years, 11 days
- 1990 ALCS (October 6, 1990), Athletics vs Red Sox 4–0: 36 years, 3 days
- 1990 World Series (October 16, 1990), Athletics vs Reds 0–4: 36 years, 13 days
- 1992 ALCS (October 7, 1992), Athletics vs Blue Jays 2–4: 38 years, 4 days
- 1996 NLDS (October 1, 1996), Cardinals vs Padres 3–0: 41 years, 364 days
- 1996 NLCS (October 9, 1996), Cardinals vs Braves 3–4: 42 years, 6 days
- 1998 ALDS (September 29, 1998), Red Sox vs Indians 1–3: 43 years, 361 days
Age in each season
- 1975 (Indians): 20 years, 180 days to 20 years, 363 days
- 1976 (Indians): 21 years, 181 days to 21 years, 364 days
- 1977 (Indians): 22 years, 180 days to 22 years, 363 days
- 1978 (Red Sox): 23 years, 180 days to 23 years, 363 days
- 1979 (Red Sox): 24 years, 180 days to 24 years, 363 days
- 1980 (Red Sox): 25 years, 181 days to 25 years, 364 days
- 1981 (Red Sox): 26 years, 180 days to 26 years, 363 days
- 1982 (Red Sox): 27 years, 180 days to 27 years, 363 days
- 1983 (Red Sox): 28 years, 180 days to 28 years, 363 days
- 1984 (Cubs, Red Sox): 29 years, 181 days to 29 years, 364 days
- 1985 (Cubs): 30 years, 180 days to 30 years, 363 days
- 1986 (Cubs): 31 years, 180 days to 31 years, 363 days
- 1987 (Athletics): 32 years, 180 days to 32 years, 363 days
- 1988 (Athletics): 33 years, 181 days to 33 years, 364 days
- 1989 (Athletics): 34 years, 180 days to 34 years, 363 days
- 1990 (Athletics): 35 years, 180 days to 35 years, 363 days
- 1991 (Athletics): 36 years, 180 days to 36 years, 363 days
- 1992 (Athletics): 37 years, 181 days to 37 years, 364 days
- 1993 (Athletics): 38 years, 180 days to 38 years, 363 days
- 1994 (Athletics): 39 years, 180 days to 39 years, 363 days
- 1995 (Athletics): 40 years, 180 days to 40 years, 363 days
- 1996 (Cardinals): 41 years, 181 days to 41 years, 364 days
- 1997 (Cardinals): 42 years, 180 days to 42 years, 363 days
- 1998 (Red Sox): 43 years, 180 days to 43 years, 363 days