How old were they?

Denny Walling

3B · Born April 17, 1954

Age in each postseason series

1. 1980 NLCS (October 7, 1980), Astros vs Phillies 2–3: 26 years, 173 days
2. 1981 NL West Division Series (October 6, 1981), Astros vs Dodgers 2–3: 27 years, 172 days
3. 1986 NLCS (October 8, 1986), Astros vs Mets 2–4: 32 years, 174 days

Age in each season

1. 1975 (Athletics): 20 years, 349 days to 21 years, 167 days
2. 1976 (Athletics): 21 years, 350 days to 22 years, 167 days
3. 1977 (Astros): 22 years, 349 days to 23 years, 167 days
4. 1978 (Astros): 23 years, 349 days to 24 years, 167 days
5. 1979 (Astros): 24 years, 349 days to 25 years, 167 days
6. 1980 (Astros): 25 years, 350 days to 26 years, 167 days
7. 1981 (Astros): 26 years, 349 days to 27 years, 167 days
8. 1982 (Astros): 27 years, 349 days to 28 years, 167 days
9. 1983 (Astros): 28 years, 349 days to 29 years, 167 days
10. 1984 (Astros): 29 years, 350 days to 30 years, 167 days
11. 1985 (Astros): 30 years, 349 days to 31 years, 167 days
12. 1986 (Astros): 31 years, 349 days to 32 years, 167 days
13. 1987 (Astros): 32 years, 349 days to 33 years, 167 days
14. 1988 (Astros, Cardinals): 33 years, 350 days to 34 years, 167 days
15. 1989 (Cardinals): 34 years, 349 days to 35 years, 167 days
16. 1990 (Cardinals): 35 years, 349 days to 36 years, 167 days
17. 1991 (Rangers): 36 years, 349 days to 37 years, 167 days
18. 1992 (Astros): 37 years, 350 days to 38 years, 167 days