Rube Marquard
P · Born October 9, 1886
Age in each postseason series
- 1911 World Series (October 14, 1911), Giants vs Athletics 2–4: 25 years, 5 days
- 1912 World Series (October 8, 1912), Giants vs Red Sox 3–4: 25 years, 365 days
- 1913 World Series (October 7, 1913), Giants vs Athletics 1–4: 26 years, 363 days
- 1916 World Series (October 7, 1916), Robins vs Red Sox 1–4: 29 years, 364 days
- 1920 World Series (October 5, 1920), Robins vs Indians 2–5: 33 years, 362 days
Age in each season
- 1908 (Giants): 21 years, 175 days to 21 years, 358 days
- 1909 (Giants): 22 years, 174 days to 22 years, 357 days
- 1910 (Giants): 23 years, 174 days to 23 years, 357 days
- 1911 (Giants): 24 years, 174 days to 24 years, 357 days
- 1912 (Giants): 25 years, 175 days to 25 years, 358 days
- 1913 (Giants): 26 years, 174 days to 26 years, 357 days
- 1914 (Giants): 27 years, 174 days to 27 years, 357 days
- 1915 (Giants, Robins): 28 years, 174 days to 28 years, 357 days
- 1916 (Robins): 29 years, 175 days to 29 years, 358 days
- 1917 (Robins): 30 years, 174 days to 30 years, 357 days
- 1918 (Robins): 31 years, 174 days to 31 years, 357 days
- 1919 (Robins): 32 years, 174 days to 32 years, 357 days
- 1920 (Robins): 33 years, 175 days to 33 years, 358 days
- 1921 (Reds): 34 years, 174 days to 34 years, 357 days
- 1922 (Braves): 35 years, 174 days to 35 years, 357 days
- 1923 (Braves): 36 years, 174 days to 36 years, 357 days
- 1924 (Braves): 37 years, 175 days to 37 years, 358 days
- 1925 (Braves): 38 years, 174 days to 38 years, 357 days