How old were they?

Conor Jackson

1B · Born May 7, 1982

Age in each postseason series

1. 2007 NLDS (October 3, 2007), Diamondbacks vs Cubs 3–0: 25 years, 149 days
2. 2007 NLCS (October 11, 2007), Diamondbacks vs Rockies 0–4: 25 years, 157 days

Age in each season

1. 2005 (Diamondbacks): 22 years, 329 days to 23 years, 147 days
2. 2006 (Diamondbacks): 23 years, 329 days to 24 years, 147 days
3. 2007 (Diamondbacks): 24 years, 329 days to 25 years, 147 days
4. 2008 (Diamondbacks): 25 years, 330 days to 26 years, 147 days
5. 2009 (Diamondbacks): 26 years, 329 days to 27 years, 147 days
6. 2010 (Diamondbacks, Athletics): 27 years, 329 days to 28 years, 147 days
7. 2011 (Athletics, Red Sox): 28 years, 329 days to 29 years, 147 days