J. D. Martinez
DH · Born August 21, 1987
Age in each postseason series
- 2014 ALDS (October 2, 2014), Tigers vs Orioles 0–3: 27 years, 42 days
- 2017 NL Wild Card (October 4, 2017), Diamondbacks vs Rockies 1–0: 30 years, 44 days
- 2017 NLDS (October 6, 2017), Diamondbacks vs Dodgers 0–3: 30 years, 46 days
- 2018 ALDS (October 5, 2018), Red Sox vs Yankees 3–1: 31 years, 45 days
- 2018 ALCS (October 13, 2018), Red Sox vs Astros 4–1: 31 years, 53 days
- 2018 World Series (October 23, 2018), Red Sox vs Dodgers 4–1: 31 years, 63 days
- 2021 ALDS (October 7, 2021), Red Sox vs Rays 3–1: 34 years, 47 days
- 2021 ALCS (October 15, 2021), Red Sox vs Astros 2–4: 34 years, 55 days
- 2023 NLDS (October 7, 2023), Dodgers vs Diamondbacks 0–3: 36 years, 47 days
- 2024 NL Wild Card (October 1, 2024), Mets vs Brewers 2–1: 37 years, 41 days
- 2024 NLDS (October 5, 2024), Mets vs Phillies 3–1: 37 years, 45 days
- 2024 NLCS (October 13, 2024), Mets vs Dodgers 2–4: 37 years, 53 days
Age in each season
- 2011 (Astros): 23 years, 223 days to 24 years, 41 days
- 2012 (Astros): 24 years, 224 days to 25 years, 41 days
- 2013 (Astros): 25 years, 223 days to 26 years, 41 days
- 2014 (Tigers): 26 years, 223 days to 27 years, 41 days
- 2015 (Tigers): 27 years, 223 days to 28 years, 41 days
- 2016 (Tigers): 28 years, 224 days to 29 years, 41 days
- 2017 (Diamondbacks, Tigers): 29 years, 223 days to 30 years, 41 days
- 2018 (Red Sox): 30 years, 223 days to 31 years, 41 days
- 2019 (Red Sox): 31 years, 223 days to 32 years, 41 days
- 2020 (Red Sox): 32 years, 224 days to 33 years, 41 days
- 2021 (Red Sox): 33 years, 223 days to 34 years, 41 days
- 2022 (Red Sox): 34 years, 223 days to 35 years, 41 days
- 2023 (Dodgers): 35 years, 223 days to 36 years, 41 days
- 2024 (Mets): 36 years, 224 days to 37 years, 41 days