How old were they?

Bill McCabe

RF · Born October 28, 1892

Age in each postseason series

1. 1918 World Series (September 5, 1918), Cubs vs Red Sox 2–4: 25 years, 312 days
2. 1920 World Series (October 5, 1920), Robins vs Indians 2–5: 27 years, 343 days

Age in each season

1. 1918 (Cubs): 25 years, 155 days to 25 years, 338 days
2. 1919 (Cubs): 26 years, 155 days to 26 years, 338 days
3. 1920 (Robins, Cubs): 27 years, 156 days to 27 years, 339 days