J. B. Wendelken
P · Born March 24, 1993
Age in each postseason series
- 2020 AL Wild Card (September 29, 2020), Athletics vs White Sox 2–1: 27 years, 189 days
- 2020 ALDS (October 5, 2020), Athletics vs Astros 1–3: 27 years, 195 days
Age in each season
- 2016 (Athletics): 23 years, 8 days to 23 years, 191 days
- 2018 (Athletics): 25 years, 8 days to 25 years, 191 days
- 2019 (Athletics): 26 years, 8 days to 26 years, 191 days
- 2020 (Athletics): 27 years, 8 days to 27 years, 191 days
- 2021 (Athletics, Diamondbacks): 28 years, 8 days to 28 years, 191 days
- 2022 (Diamondbacks): 29 years, 8 days to 29 years, 191 days