Big Jeff Pfeffer was a pitcher in MLB history. Across 113 career appearances, with a 3.30 ERA and 317 strikeouts. This page covers season stats, team history, and career profile.
Season-by-season performance, contract terms, and the complete archive.
| Year | Team | W | L | ERA | G | GS | SV | IP | H | ER | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1905 | CHC | 4 | 4 | 2.50 | 15 | 11 | 0 | 101.0 | 84 | 28 | 36 | 56 | 1.19 |
| 1906 | BSN | 13 | 22 | 2.95 | 36 | 36 | 0 | 302.1 | 270 | 99 | 114 | 158 | 1.27 |
| 1907 | BSN | 6 | 8 | 3.00 | 19 | 16 | 0 | 144.0 | 129 | 48 | 61 | 65 | 1.32 |
| 1908 | BSN | 0 | 0 | 12.60 | 4 | 0 | 0 | 10.0 | 18 | 14 | 8 | 3 | 2.60 |
| 1910 | CHC | 1 | 0 | 3.27 | 13 | 1 | 0 | 41.1 | 43 | 15 | 16 | 11 | 1.43 |
| 1911 | BSN | 7 | 5 | 4.73 | 26 | 6 | 2 | 97.0 | 116 | 51 | 57 | 24 | 1.78 |
| Career Totals | — | 31 | 39 | 3.30 | 113 | 70 | 2 | 695.2 | 660 | 255 | 292 | 317 | 1.37 |
| Year | Team | G | AB | R | H | 2B | 3B | HR | RBI | SB | BB | SO | AVG | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1905 | CHC | 15 | 40 | 4 | 8 | 3 | 0 | 0 | 3 | 2 | 0 | 10 | .200 | .200 | .275 | .475 |
| 1906 | BSN | 60 | 158 | 10 | 31 | 3 | 3 | 1 | 11 | 2 | 5 | 29 | .196 | .253 | .272 | .525 |
| 1907 | BSN | 21 | 60 | 1 | 15 | 3 | 0 | 0 | 6 | 0 | 2 | 6 | .250 | .286 | .300 | .586 |
| 1908 | BSN | 4 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 |
| 1910 | CHC | 14 | 17 | 1 | 3 | 1 | 1 | 0 | 2 | 0 | 1 | 1 | .176 | .222 | .353 | .575 |
| 1911 | BSN | 33 | 46 | 4 | 9 | 2 | 0 | 1 | 6 | 0 | 5 | 7 | .196 | .288 | .304 | .593 |
| Career Totals | — | 147 | 323 | 20 | 66 | 12 | 4 | 2 | 28 | 4 | 13 | 54 | .204 | .255 | .285 | .540 |