How old were they?

Gregg Jefferies

1B · Born August 1, 1967

Age in each postseason series

1. 1988 NLCS (October 4, 1988), Mets vs Dodgers 3–4: 21 years, 64 days

Age in each season

1. 1987 (Mets): 19 years, 243 days to 20 years, 61 days
2. 1988 (Mets): 20 years, 244 days to 21 years, 61 days
3. 1989 (Mets): 21 years, 243 days to 22 years, 61 days
4. 1990 (Mets): 22 years, 243 days to 23 years, 61 days
5. 1991 (Mets): 23 years, 243 days to 24 years, 61 days
6. 1992 (Royals): 24 years, 244 days to 25 years, 61 days
7. 1993 (Cardinals): 25 years, 243 days to 26 years, 61 days
8. 1994 (Cardinals): 26 years, 243 days to 27 years, 61 days
9. 1995 (Phillies): 27 years, 243 days to 28 years, 61 days
10. 1996 (Phillies): 28 years, 244 days to 29 years, 61 days
11. 1997 (Phillies): 29 years, 243 days to 30 years, 61 days
12. 1998 (Phillies, Angels): 30 years, 243 days to 31 years, 61 days
13. 1999 (Tigers): 31 years, 243 days to 32 years, 61 days
14. 2000 (Tigers): 32 years, 244 days to 33 years, 61 days