Big Jeff Pfeffer
Batting
Baseball Reference Page
| Team | Year | Adj IP | W | L | BB | SO | ERA | RPG | Runs | Tot | R/IP | TE |
| CHN | 1905 | 101.5 | 4 | 4 | 36 | 56 | 2.50 | 0.064 | 48.6 | 49.3 | 0.479 | 0.438 |
| BSN | 1906 | 305.7 | 13 | 22 | 114 | 158 | 2.95 | 0.117 | 148.7 | 153.8 | 0.487 | 0.441 |
| BSN | 1907 | 143.8 | 6 | 8 | 61 | 65 | 3.00 | 0.229 | 68.9 | 72.4 | 0.479 | 0.455 |
| BSN | 1908 | 12.1 | 0 | 0 | 8 | 3 | 12.60 | -0.393 | 4.5 | 4.2 | 0.369 | 0.329 |
| CHN | 1910 | 41.9 | 1 | 0 | 16 | 11 | 3.27 | 0.163 | 19.6 | 20.4 | 0.467 | 0.435 |
| BSN | 1911 | 98.9 | 7 | 5 | 57 | 24 | 4.73 | 0.215 | 45.2 | 47.9 | 0.457 | 0.430 |