| SP | McQuillan, G.McQuillan, George † >> | 23 | 1908 | R | 67 | 28 | 28 | 17 | 5 | 3.45 | .282 | 1.16 | 8.1 | 2.3 | 2.2 | 169.2 | 152 | 82 | 65 | 10 | 44 | 41 | 0 | 0 | 0 | 0 | 17 | 4 | 4 | 4.14 |
| SP | Chamberlain, E.Chamberlain, Elton † >> | 21 | 1888 | R | 58 | 28 | 28 | 11 | 7 | 3.88 | .310 | 1.33 | 8.7 | 3.3 | 2.4 | 199.1 | 193 | 98 | 86 | 9 | 72 | 53 | 5 | 0 | 0 | 1 | 15 | 4 | 0 | 4.20 |
| SP | Welch, M.Welch, Mickey >> | 26 | 1885 | R | 63 | 27 | 27 | 7 | 8 | 4.87 | .335 | 1.51 | 9.9 | 3.7 | 3.3 | 157.0 | 173 | 102 | 85 | 6 | 64 | 57 | 2 | 0 | 0 | 1 | 14 | 0 | 13 | 3.99 |
| CL | Gregg, V.Gregg, Vean † >> | 26 | 1911 | L | 63 | 62 | 0 | 12 | 7 | 3.51 | .285 | 1.18 | 7.8 | 2.9 | 2.3 | 110.1 | 95 | 54 | 43 | 5 | 35 | 28 | 0 | 34 | 8 | 0 | 0 | 2 | 2 | 4.09 |
| RP | Shawkey, B.Shawkey, Bob >> | 26 | 1916 | R | 74 | 53 | 0 | 3 | 0 | 1.91 | .259 | 1.01 | 6.8 | 2.4 | 1.9 | 80.0 | 60 | 19 | 17 | 1 | 21 | 17 | 0 | 6 | 2 | 0 | 0 | 3 | 2 | 3.64 |
| RP | Mullane, T.Mullane, Tony >> | 24 | 1883 | R | 82 | 19 | 0 | 4 | 1 | 2.37 | .235 | 0.89 | 6.6 | 1.5 | 2.1 | 30.1 | 22 | 9 | 8 | 1 | 5 | 7 | 0 | 2 | 0 | 0 | 0 | 1 | 0 | 3.57 |
| RP | Cooper, W.Cooper, Wilbur >> | 24 | 1916 | L | 41 | 38 | 0 | 2 | 1 | 2.86 | .305 | 1.23 | 8.6 | 2.5 | 4.5 | 22.0 | 21 | 8 | 7 | 0 | 6 | 11 | 0 | 3 | 0 | 0 | 0 | 2 | 1 | 3.09 |
| RP | Williams, L.Williams, Lefty >> | 25 | 1918 | L | 19 | 24 | 0 | 2 | 0 | 0.89 | .222 | 0.86 | 4.8 | 3.0 | 1.8 | 30.1 | 16 | 4 | 3 | 0 | 10 | 6 | 0 | 2 | 0 | 0 | 0 | 0 | 2 | 3.60 |