How old were they?

Otto Kemp

3B · Born September 9, 1999

Age in each postseason series

1. 2025 NLDS (October 4, 2025), Phillies vs Dodgers 1–3: 26 years, 25 days

Age in each season

1. 2025 (Phillies): 25 years, 204 days to 26 years, 22 days