How old were they?

Ernie Shore

P · Born March 24, 1891

Age in each postseason series

1. 1915 World Series (October 8, 1915), Red Sox vs Phillies 4–1: 24 years, 198 days
2. 1916 World Series (October 7, 1916), Red Sox vs Robins 4–1: 25 years, 197 days

Age in each season

1. 1912 (Giants): 21 years, 8 days to 21 years, 191 days
2. 1914 (Red Sox): 23 years, 8 days to 23 years, 191 days
3. 1915 (Red Sox): 24 years, 8 days to 24 years, 191 days
4. 1916 (Red Sox): 25 years, 8 days to 25 years, 191 days
5. 1917 (Red Sox): 26 years, 8 days to 26 years, 191 days
6. 1919 (Yankees): 28 years, 8 days to 28 years, 191 days
7. 1920 (Yankees): 29 years, 8 days to 29 years, 191 days