How old were they?

Geraldo Perdomo

SS · Born October 22, 1999

Age in each postseason series

1. 2023 NL Wild Card (October 3, 2023), Diamondbacks vs Brewers 2–0: 23 years, 346 days
2. 2023 NLDS (October 7, 2023), Diamondbacks vs Dodgers 3–0: 23 years, 350 days
3. 2023 NLCS (October 16, 2023), Diamondbacks vs Phillies 4–3: 23 years, 359 days
4. 2023 World Series (October 27, 2023), Diamondbacks vs Rangers 1–4: 24 years, 5 days

Age in each season

1. 2021 (Diamondbacks): 21 years, 161 days to 21 years, 344 days
2. 2022 (Diamondbacks): 22 years, 161 days to 22 years, 344 days
3. 2023 (Diamondbacks): 23 years, 161 days to 23 years, 344 days
4. 2024 (Diamondbacks): 24 years, 162 days to 24 years, 345 days
5. 2025 (Diamondbacks): 25 years, 161 days to 25 years, 344 days