How old were they?

Michael Kopech

P · Born April 30, 1996

Age in each postseason series

1. 2021 ALDS (October 7, 2021), White Sox vs Astros 1–3: 25 years, 160 days
2. 2024 NLDS (October 5, 2024), Dodgers vs Padres 3–2: 28 years, 158 days
3. 2024 NLCS (October 13, 2024), Dodgers vs Mets 4–2: 28 years, 166 days
4. 2024 World Series (October 25, 2024), Dodgers vs Yankees 4–1: 28 years, 178 days

Age in each season

1. 2018 (White Sox): 21 years, 336 days to 22 years, 154 days
2. 2021 (White Sox): 24 years, 336 days to 25 years, 154 days
3. 2022 (White Sox): 25 years, 336 days to 26 years, 154 days
4. 2023 (White Sox): 26 years, 336 days to 27 years, 154 days
5. 2024 (White Sox, Dodgers): 27 years, 337 days to 28 years, 154 days
6. 2025 (Dodgers): 28 years, 336 days to 29 years, 154 days