How old were they?

Jeff King

3B · Born December 26, 1964

Age in each postseason series

1. 1990 NLCS (October 4, 1990), Pirates vs Reds 2–4: 25 years, 282 days
2. 1992 NLCS (October 6, 1992), Pirates vs Braves 3–4: 27 years, 285 days

Age in each season

1. 1989 (Pirates): 24 years, 96 days to 24 years, 279 days
2. 1990 (Pirates): 25 years, 96 days to 25 years, 279 days
3. 1991 (Pirates): 26 years, 96 days to 26 years, 279 days
4. 1992 (Pirates): 27 years, 97 days to 27 years, 280 days
5. 1993 (Pirates): 28 years, 96 days to 28 years, 279 days
6. 1994 (Pirates): 29 years, 96 days to 29 years, 279 days
7. 1995 (Pirates): 30 years, 96 days to 30 years, 279 days
8. 1996 (Pirates): 31 years, 97 days to 31 years, 280 days
9. 1997 (Royals): 32 years, 96 days to 32 years, 279 days
10. 1998 (Royals): 33 years, 96 days to 33 years, 279 days
11. 1999 (Royals): 34 years, 96 days to 34 years, 279 days