How old were they?

Adalberto Mondesi

SS · Born July 27, 1995

Age in each postseason series

1. 2015 World Series (October 27, 2015), Royals vs Mets 4–1: 20 years, 92 days

Age in each season

1. 2016 (Royals): 20 years, 249 days to 21 years, 66 days
2. 2017 (Royals): 21 years, 248 days to 22 years, 66 days
3. 2018 (Royals): 22 years, 248 days to 23 years, 66 days
4. 2019 (Royals): 23 years, 248 days to 24 years, 66 days
5. 2020 (Royals): 24 years, 249 days to 25 years, 66 days
6. 2021 (Royals): 25 years, 248 days to 26 years, 66 days
7. 2022 (Royals): 26 years, 248 days to 27 years, 66 days