| Year | Team | Lg | Level | Unif | Org | Age | Rk | G | GS | IP | ERA | WHIP | H9 | HR9 | BB9 | SO9 | BB/SO | GB/FB | QS | HB | AB | Bavg | TBF | Pit/B | Bal | Str | Sw | Record | TR | Manager(s) |
| 1903 | Chi White Sox | AL | MLB | - | chw | 23 | 27 | 26 | 20 | 167.1 | 3.50 | 1.26 | 8.98 | 0.05 | 2.37 | 3.55 | 0.67 | -- | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | 60-77 | 7 | Nixey Callahan |
| 1904 | Chi White Sox | AL | MLB | - | chw | 24 | 7 | 37 | 36 | 315.0 | 1.94 | 0.97 | 6.94 | 0.06 | 1.74 | 2.94 | 0.59 | -- | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | 89-65 | 3 | Fielder Jones, Nixey Callahan |
| 1905 | Chi White Sox | AL | MLB | - | chw | 25 | 5 | 42 | 38 | 334.0 | 2.10 | 0.99 | 7.44 | 0.16 | 1.51 | 3.37 | 0.45 | -- | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | 92-60 | 2 | Fielder Jones |
| 1906 | Chi White Sox | AL | MLB | - | chw | 26 | 15 | 42 | 36 | 293.0 | 2.33 | 1.17 | 8.88 | 0.12 | 1.66 | 2.03 | 0.82 | -- | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | 93-58 | 1 | Fielder Jones |
| 1907 | Chi White Sox | AL | MLB | - | chw | 27 | - | 11 | 4 | 47.0 | 2.49 | 1.19 | 8.23 | 0.19 | 2.49 | 2.87 | 0.87 | -- | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | 87-64 | 3 | Fielder Jones |
| 1908 | Chi White Sox | AL | MLB | - | chw | 28 | 41 | 25 | 14 | 140.0 | 3.41 | 1.28 | 9.13 | 0.13 | 2.38 | 3.09 | 0.77 | -- | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | 88-64 | 3 | Fielder Jones |
| 1909 | Chi White Sox | AL | MLB | - | chw | 29 | - | 3 | 2 | 16.0 | 4.50 | 1.38 | 10.69 | -- | 1.69 | 1.69 | 1.00 | -- | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | 78-74 | 4 | Billy Sullivan |
| MLB Totals (7 years) | 186 | 150 | 1312 | 1 | 1.10 | 8.09 | 0.11 | 1.84 | 2.92 | 0.63 | -- | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | .560 | -- | ||||||||