How old were they?

Dutch Leonard

P · Born April 16, 1892

Age in each postseason series

1. 1915 World Series (October 8, 1915), Red Sox vs Phillies 4–1: 23 years, 175 days
2. 1916 World Series (October 7, 1916), Red Sox vs Robins 4–1: 24 years, 174 days

Age in each season

1. 1913 (Red Sox): 20 years, 350 days to 21 years, 168 days
2. 1914 (Red Sox): 21 years, 350 days to 22 years, 168 days
3. 1915 (Red Sox): 22 years, 350 days to 23 years, 168 days
4. 1916 (Red Sox): 23 years, 351 days to 24 years, 168 days
5. 1917 (Red Sox): 24 years, 350 days to 25 years, 168 days
6. 1918 (Red Sox): 25 years, 350 days to 26 years, 168 days
7. 1919 (Tigers): 26 years, 350 days to 27 years, 168 days
8. 1920 (Tigers): 27 years, 351 days to 28 years, 168 days
9. 1921 (Tigers): 28 years, 350 days to 29 years, 168 days
10. 1924 (Tigers): 31 years, 351 days to 32 years, 168 days
11. 1925 (Tigers): 32 years, 350 days to 33 years, 168 days