How old were they?

Bert Niehoff

2B · Born May 13, 1884

Age in each postseason series

1. 1915 World Series (October 8, 1915), Phillies vs Red Sox 1–4: 31 years, 148 days

Age in each season

1. 1913 (Reds): 28 years, 323 days to 29 years, 141 days
2. 1914 (Reds): 29 years, 323 days to 30 years, 141 days
3. 1915 (Phillies): 30 years, 323 days to 31 years, 141 days
4. 1916 (Phillies): 31 years, 324 days to 32 years, 141 days
5. 1917 (Phillies): 32 years, 323 days to 33 years, 141 days
6. 1918 (Cardinals, Giants): 33 years, 323 days to 34 years, 141 days