| 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) |
| 1984 | El Paso | Tex | AA | 3 | mil | 25 | 30 | 19 | 19 | 121.0 | 2.60 | 1.31 | 8.63 | 0.82 | 3.20 | 7.36 | 0.43 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 72-63 | 2 | Terry Bevington |
| Vancouver | PCL | AAA | - | mil | 25 | - | 8 | 6 | 40.0 | 4.73 | 1.58 | 11.03 | 0.68 | 3.15 | 6.53 | 0.48 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 71-71 | 2 | Tony Muser | |
| 1985 | Milwaukee | AL | MLB | 49 | mil | 26 | 16 | 32 | 30 | 212.1 | 3.90 | 1.17 | 7.88 | 0.93 | 2.67 | 5.38 | 0.50 | 0.79 | 17 | 3 | 793 | .235 | 874 | -- | -- | -- | -- | 71-90 | 6 | George Bamberger |
| 1986 | Milwaukee | AL | MLB | 49 | mil | 27 | 5 | 34 | 34 | 248.1 | 2.79 | 1.21 | 8.19 | 0.94 | 2.68 | 7.50 | 0.36 | 0.69 | 26 | 3 | 936 | .241 | 1031 | -- | -- | -- | -- | 77-84 | 6 | George Bamberger, Tom Trebelhorn |
| 1987 | Milwaukee | AL | MLB | 49 | mil | 28 | 2 | 35 | 35 | 261.2 | 3.85 | 1.23 | 8.12 | 0.83 | 2.99 | 8.25 | 0.36 | 0.68 | 19 | 2 | 980 | .241 | 1084 | -- | -- | -- | -- | 91-71 | 3 | Tom Trebelhorn |
| 1988 | Milwaukee | AL | MLB | 49 | mil | 29 | 7 | 31 | 31 | 227.1 | 2.45 | 1.00 | 6.65 | 0.59 | 2.34 | 7.60 | 0.31 | 0.67 | 24 | 6 | 813 | .207 | 895 | 3.48 | 34.1 | 65.9 | 8.9 | 87-75 | 4 | Tom Trebelhorn |
| 1989 | El Paso | Tex | AA | - | mil | 30 | - | 1 | 1 | 5.0 | 1.80 | 1.20 | 9.00 | -- | 1.80 | 7.20 | 0.25 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 63-73 | 3 | Marc Bombard |
| Milwaukee | AL | MLB | 49 | mil | 30 | - | 22 | 22 | 135.1 | 3.46 | 1.28 | 8.31 | 0.60 | 3.19 | 6.05 | 0.53 | 0.53 | 11 | 4 | 504 | .248 | 567 | 3.26 | 37.8 | 62.2 | 7.8 | 81-81 | 4 | Tom Trebelhorn | |
| 1990 | Milwaukee | AL | MLB | 49 | mil | 31 | 28 | 27 | 27 | 170.0 | 3.76 | 1.28 | 8.84 | 0.85 | 2.65 | 6.83 | 0.39 | 0.60 | 14 | 3 | 653 | .256 | 720 | 3.39 | 35.6 | 64.4 | 8.0 | 74-88 | 6 | Tom Trebelhorn |
| 1991 | Denver | Amer | AAA | - | mil | 32 | - | 2 | 2 | 8.2 | 2.08 | 1.38 | 6.23 | 1.04 | 6.23 | 6.23 | 1.00 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 79-65 | 1 | Tony Muser |
| Milwaukee | AL | MLB | 49 | mil | 32 | - | 7 | 6 | 36.1 | 4.46 | 1.29 | 9.17 | 0.50 | 2.48 | 8.17 | 0.30 | 0.51 | 3 | 1 | 141 | .262 | 153 | 3.73 | 37.2 | 62.8 | 9.5 | 83-79 | 4 | Tom Trebelhorn | |
| 1992 | Beloit | Midw | A | - | mil | 33 | - | 2 | 2 | 11.0 | 3.27 | 1.27 | 10.64 | 1.64 | 0.82 | 9.00 | 0.09 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 77-58 | 1 | Wayne Krenchicki |
| El Paso | Tex | AA | - | mil | 33 | - | 1 | 1 | 5.0 | 3.60 | 1.20 | 7.20 | -- | 3.60 | 5.40 | 0.67 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 73-63 | 1 | Chris Bando | |
| Denver | Amer | AAA | - | mil | 33 | - | 2 | 2 | 8.2 | 4.15 | 1.73 | 7.27 | -- | 8.31 | 4.15 | 2.00 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 73-71 | 2 | Tony Muser | |
| 1993 | New Orleans | Amer | AAA | - | mil | 34 | - | 3 | 3 | 8.0 | 9.00 | 2.25 | 12.38 | 1.13 | 7.88 | 7.88 | 1.00 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 80-64 | 2 | Chris Bando |
| Milwaukee | AL | MLB | 49 | mil | 34 | - | 8 | 8 | 30.0 | 7.20 | 1.97 | 12.90 | 1.20 | 4.80 | 8.10 | 0.59 | 0.44 | 0 | 1 | 129 | .333 | 148 | 3.76 | 40.8 | 59.2 | 5.2 | 69-93 | 7 | Phil Garner | |
| 1994 | Milwaukee | AL | MLB | 49 | mil | 35 | - | 17 | 12 | 58.2 | 7.06 | 1.87 | 11.35 | 1.99 | 5.52 | 5.37 | 1.03 | 0.69 | 4 | 2 | 238 | .311 | 280 | 3.73 | 43.2 | 56.8 | 5.0 | 53-62 | 5 | Phil Garner |
| MLB Totals (9 years) | 213 | 205 | 1379 | 17 | 1.24 | 8.24 | 0.85 | 2.89 | 7.06 | 0.41 | 0.65 | 118 | 25 | 5187 | .243 | 5752 | -- | 36.8 | 63.2 | 7.8 | .487 | -- | ||||||||
| Minor League Totals (5 years) | 38 | 36 | 208 | 0 | 1.41 | 9.13 | 0.78 | 3.55 | 7.05 | 0.50 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .527 | -- | ||||||||
| AAA Totals (4 years) | 15 | 13 | 66 | 0 | 1.64 | 9.95 | 0.68 | 4.77 | 6.27 | 0.76 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .528 | -- | ||||||||
| AA Totals (3 years) | 21 | 21 | 131 | 0 | 1.31 | 8.59 | 0.76 | 3.16 | 7.28 | 0.43 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .511 | -- | ||||||||
| A Totals (1 year) | 2 | 2 | 11 | 0 | 1.27 | 10.64 | 1.64 | 0.82 | 9.00 | 0.09 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .570 | -- | ||||||||