Willie Jefferson fue lanzador en la historia de MLB. En 66 apariciones de carrera, con ERA de 3.94 y 215 ponches. Esta página incluye estadísticas por temporada, historial de equipos y perfil de carrera.
Rendimiento temporada por temporada, condiciones contractuales y archivo completo.
| Año | Equipo | G | P | ERA | J | GS | SV | IL | H | ER | BB | SO | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | CT | 1 | 2 | 5.72 | 8 | 5 | 0 | 39.1 | 49 | 25 | 8 | 33 | 1.45 |
| 1938 | MRS | 3 | 5 | 3.67 | 13 | 6 | 0 | 73.2 | 77 | 30 | 13 | 42 | 1.22 |
| 1939 | MRS | 1 | 2 | 2.57 | 5 | 4 | 0 | 35.0 | 36 | 10 | 5 | 14 | 1.17 |
| 1942 | CCB | 6 | 3 | 3.03 | 12 | 11 | 0 | 74.1 | 79 | 25 | 14 | 34 | 1.25 |
| 1942 | PS | 2 | 1 | 5.04 | 3 | 3 | 0 | 25.0 | 25 | 14 | 6 | 15 | 1.24 |
| 1943 | CBE | 3 | 6 | 4.41 | 9 | 8 | 0 | 65.1 | 80 | 32 | 18 | 35 | 1.50 |
| 1944 | CBE | 4 | 5 | 4.13 | 10 | 8 | 0 | 65.1 | 74 | 30 | 17 | 30 | 1.39 |
| 1945 | CBE | 2 | 0 | 1.69 | 5 | 1 | 1 | 21.1 | 15 | 4 | 5 | 12 | 0.94 |
| 1946 | CBE | 0 | 0 | 135.00 | 1 | 0 | 0 | 0.1 | 4 | 5 | 0 | 0 | 12.00 |
| Totales de Carrera | — | 22 | 24 | 3.94 | 66 | 46 | 1 | 399.2 | 439 | 175 | 86 | 215 | 1.31 |
| Año | Equipo | J | AB | C | H | 2B | 3B | HR | CI | BR | BB | K | PRO | OBP | SLG | OPS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1937 | CT | 11 | 24 | 2 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | .208 | .208 | .208 | .417 |
| 1938 | MRS | 17 | 41 | 7 | 12 | 2 | 1 | 2 | 7 | 0 | 0 | 0 | .293 | .293 | .537 | .829 |
| 1939 | MRS | 6 | 12 | 0 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | .333 | .333 | .333 | .667 |
| 1942 | CCB | 12 | 28 | 4 | 5 | 1 | 0 | 0 | 3 | 0 | 2 | .179 | .258 | .214 | .472 | |
| 1942 | PS | 3 | 10 | 0 | 5 | 1 | 0 | 0 | 4 | 0 | 0 | .500 | .500 | .600 | 1.100 | |
| 1943 | CBE | 10 | 26 | 0 | 5 | 1 | 0 | 0 | 2 | 1 | 0 | .192 | .222 | .231 | .453 | |
| 1944 | CBE | 11 | 26 | 3 | 4 | 1 | 0 | 0 | 1 | 2 | 0 | .154 | .154 | .192 | .346 | |
| 1945 | CBE | 6 | 12 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | .167 | .231 | .167 | .397 | |
| 1946 | CBE | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Totales de Carrera | — | 77 | 179 | 17 | 42 | 6 | 1 | 2 | 21 | 3 | 3 | 0 | .235 | .255 | .313 | .568 |