| 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) |
| 1977 | Appleton | Midw | A | - | chw | 22 | - | 17 | 12 | 84.0 | 3.75 | 1.42 | 8.79 | 1.07 | 3.96 | 6.96 | 0.57 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 54-84 | 4 | Gordy Lund |
| 1978 | Appleton | Midw | A | - | chw | 23 | 56 | 10 | 10 | 74.0 | 1.82 | 0.91 | 5.96 | 0.12 | 2.19 | 8.88 | 0.25 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 97-40 | 1 | Gordy Lund |
| Knoxville | Sou | AA | - | chw | 23 | - | 4 | 3 | 25.0 | 3.24 | 1.16 | 7.92 | 1.08 | 2.52 | 5.04 | 0.50 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 88-56 | 1 | Joe Jones, Tony LaRussa | |
| Iowa | Amer | AAA | - | chw | 23 | 50 | 9 | 9 | 66.0 | 3.27 | 1.21 | 7.77 | 0.82 | 3.14 | 7.36 | 0.43 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 66-70 | 4 | Joe Sparks | |
| Chi White Sox | AL | MLB | 41 | chw | 23 | - | 7 | 4 | 23.0 | 5.87 | 1.65 | 11.35 | 1.17 | 3.52 | 5.87 | 0.60 | 0.96 | 2 | 1 | 92 | .315 | 106 | -- | -- | -- | -- | 71-90 | 5 | Larry Doby, Bob Lemon | |
| 1979 | Chi White Sox | AL | MLB | 30 | chw | 24 | 27 | 28 | 28 | 190.2 | 3.54 | 1.35 | 8.26 | 0.85 | 3.92 | 3.40 | 1.15 | 0.81 | 15 | 1 | 720 | .243 | 818 | -- | -- | -- | -- | 73-87 | 5 | Don Kessinger, Tony LaRussa |
| 1980 | Chi White Sox | AL | MLB | 30 | chw | 25 | - | 24 | 23 | 136.0 | 3.44 | 1.32 | 8.40 | 0.66 | 3.44 | 4.37 | 0.79 | 1.04 | 12 | 1 | 497 | .256 | 566 | -- | -- | -- | -- | 70-90 | 5 | Tony LaRussa |
| 1981 | Chi White Sox | AL | MLB | 30 | chw | 26 | - | 19 | 19 | 101.2 | 4.07 | 1.39 | 8.94 | 0.80 | 3.54 | 4.60 | 0.77 | 0.72 | 8 | 1 | 388 | .260 | 435 | -- | -- | -- | -- | 54-52 | Tony LaRussa | |
| 1982 | Pittsburgh | NL | MLB | 34 | pit | 27 | - | 12 | 10 | 44.0 | 6.75 | 1.98 | 12.27 | 0.61 | 5.52 | 3.48 | 1.59 | 0.93 | 1 | 0 | 173 | .347 | 208 | -- | -- | -- | -- | 84-78 | 4 | Chuck Tanner |
| 1983 | Evansville | Amer | AAA | - | det | 28 | - | 7 | 2 | 9.2 | 12.10 | 3.00 | 19.55 | -- | 7.45 | 0.93 | 8.00 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 61-75 | 4 | Gordon MacKenzie |
| Tacoma | PCL | AAA | - | oak | 28 | - | 12 | 3 | 24.0 | 5.63 | 1.88 | 11.25 | 0.38 | 5.63 | 4.88 | 1.15 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 65-77 | 4 | Bob Didier | |
| MLB Totals (5 years) | 90 | 84 | 496 | 6 | 1.42 | 8.93 | 0.78 | 3.83 | 4.03 | 0.95 | 0.86 | 38 | 4 | 1870 | .263 | 2133 | -- | -- | -- | -- | .470 | -- | ||||||||
| Minor League Totals (3 years) | 59 | 39 | 283 | 0 | 1.30 | 8.30 | 0.67 | 3.43 | 7.00 | 0.49 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .517 | -- | ||||||||
| AAA Totals (2 years) | 28 | 14 | 100 | 0 | 1.54 | 9.72 | 0.63 | 4.14 | 6.12 | 0.68 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .464 | -- | ||||||||
| AA Totals (1 year) | 4 | 3 | 25 | 0 | 1.16 | 7.92 | 1.08 | 2.52 | 5.04 | 0.50 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .611 | -- | ||||||||
| A Totals (2 years) | 27 | 22 | 158 | 0 | 1.18 | 7.46 | 0.63 | 3.13 | 7.86 | 0.40 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .549 | -- | ||||||||