How old were they?

Jack Lapp

C · Born September 10, 1884

Age in each postseason series

1. 1910 World Series (October 17, 1910), Athletics vs Cubs 4–1: 26 years, 37 days
2. 1911 World Series (October 14, 1911), Athletics vs Giants 4–2: 27 years, 34 days
3. 1913 World Series (October 7, 1913), Athletics vs Giants 4–1: 29 years, 27 days
4. 1914 World Series (October 9, 1914), Athletics vs Braves 0–4: 30 years, 29 days

Age in each season

1. 1908 (Athletics): 23 years, 204 days to 24 years, 21 days
2. 1909 (Athletics): 24 years, 203 days to 25 years, 21 days
3. 1910 (Athletics): 25 years, 203 days to 26 years, 21 days
4. 1911 (Athletics): 26 years, 203 days to 27 years, 21 days
5. 1912 (Athletics): 27 years, 204 days to 28 years, 21 days
6. 1913 (Athletics): 28 years, 203 days to 29 years, 21 days
7. 1914 (Athletics): 29 years, 203 days to 30 years, 21 days
8. 1915 (Athletics): 30 years, 203 days to 31 years, 21 days
9. 1916 (White Sox): 31 years, 204 days to 32 years, 21 days