How old were they?

Beals Becker

RF · Born July 5, 1886

Age in each postseason series

1. 1911 World Series (October 14, 1911), Giants vs Athletics 2–4: 25 years, 101 days
2. 1912 World Series (October 8, 1912), Giants vs Red Sox 3–4: 26 years, 95 days
3. 1915 World Series (October 8, 1915), Phillies vs Red Sox 1–4: 29 years, 95 days

Age in each season

1. 1908 (Doves, Pirates): 21 years, 271 days to 22 years, 88 days
2. 1909 (Doves): 22 years, 270 days to 23 years, 88 days
3. 1910 (Giants): 23 years, 270 days to 24 years, 88 days
4. 1911 (Giants): 24 years, 270 days to 25 years, 88 days
5. 1912 (Giants): 25 years, 271 days to 26 years, 88 days
6. 1913 (Phillies, Reds): 26 years, 270 days to 27 years, 88 days
7. 1914 (Phillies): 27 years, 270 days to 28 years, 88 days
8. 1915 (Phillies): 28 years, 270 days to 29 years, 88 days