Jeff Pfeffer
Batting
Baseball Reference Page
| Team | Year | Adj IP | W | L | BB | SO | ERA | RPG | Runs | Tot | R/IP | TE |
| SLA | 1911 | 10.4 | 0 | 0 | 4 | 4 | 7.20 | -0.405 | 5.4 | 4.8 | 0.520 | 0.414 |
| BRO | 1913 | 25.9 | 0 | 1 | 13 | 13 | 3.33 | -0.381 | 11.4 | 10.4 | 0.440 | 0.363 |
| BRO | 1914 | 304.4 | 23 | 12 | 91 | 135 | 1.97 | 0.023 | 151.6 | 152.3 | 0.498 | 0.454 |
| BRO | 1915 | 283.3 | 19 | 14 | 76 | 84 | 2.10 | 0.220 | 133.3 | 139.4 | 0.471 | 0.449 |
| BRO | 1916 | 322.4 | 25 | 11 | 63 | 128 | 1.92 | 0.305 | 163.9 | 173.1 | 0.508 | 0.491 |
| BRO | 1917 | 263.0 | 11 | 15 | 66 | 115 | 2.23 | -0.202 | 131.3 | 125.1 | 0.499 | 0.426 |
| BRO | 1918 | 7.3 | 1 | 0 | 3 | 1 | 0.00 | 0.108 | 3.3 | 3.4 | 0.446 | 0.405 |
| BRO | 1919 | 268.0 | 17 | 13 | 49 | 92 | 2.66 | 0.084 | 131.8 | 134.0 | 0.492 | 0.455 |
| BRO | 1920 | 217.7 | 16 | 9 | 45 | 80 | 3.01 | 0.028 | 109.5 | 110.0 | 0.503 | 0.461 |
| BRO | 1921 | 31.9 | 1 | 5 | 9 | 8 | 4.55 | -0.421 | 16.5 | 15.0 | 0.519 | 0.422 |
| SLN | 1921 | 98.6 | 9 | 3 | 28 | 22 | 4.29 | -0.119 | 48.7 | 47.5 | 0.494 | 0.439 |
| SLN | 1922 | 256.0 | 19 | 12 | 58 | 83 | 3.58 | 0.124 | 140.2 | 143.3 | 0.547 | 0.509 |
| SLN | 1923 | 151.0 | 8 | 9 | 40 | 32 | 4.02 | -0.228 | 72.6 | 68.9 | 0.481 | 0.412 |
| SLN | 1924 | 81.3 | 4 | 5 | 30 | 20 | 5.31 | -0.287 | 39.3 | 37.0 | 0.483 | 0.414 |
| PIT | 1924 | 60.0 | 5 | 3 | 17 | 19 | 3.07 | -0.076 | 28.8 | 28.3 | 0.479 | 0.424 |