| 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 | Orlando | Sou | AA | - | min | 20 | - | 16 | 14 | 109.0 | 1.98 | 1.16 | 8.17 | 0.33 | 2.23 | 5.94 | 0.38 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 76-61 | 1 | -- |
| 1978 | Minnesota | AL | MLB | 19 | min | 21 | 27 | 37 | 37 | 265.2 | 3.96 | 1.31 | 9.08 | 0.64 | 2.68 | 4.10 | 0.65 | 0.87 | 20 | 8 | 1019 | .263 | 1120 | -- | -- | -- | -- | 73-89 | 4 | Gene Mauch |
| 1979 | Toledo | IL | AAA | - | min | 22 | - | 5 | 5 | 34.0 | 1.59 | 1.18 | 7.94 | 0.26 | 2.65 | 5.03 | 0.53 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 63-76 | 7 | Cal Ermer |
| Minnesota | AL | MLB | 19 | min | 22 | - | 24 | 21 | 123.0 | 5.63 | 1.64 | 11.27 | 1.24 | 3.51 | 3.44 | 1.02 | 0.90 | 8 | 1 | 496 | .310 | 556 | -- | -- | -- | -- | 82-80 | 4 | Gene Mauch | |
| 1980 | Minnesota | AL | MLB | 19 | min | 23 | 47 | 32 | 27 | 191.1 | 3.25 | 1.33 | 9.31 | 0.61 | 2.63 | 4.56 | 0.58 | 0.81 | 18 | 4 | 740 | .268 | 811 | -- | -- | -- | -- | 77-84 | 3 | Gene Mauch, Johnny Goryl |
| 1981 | Minnesota | AL | MLB | 19 | min | 24 | - | 14 | 14 | 91.1 | 3.84 | 1.36 | 9.16 | 0.69 | 3.05 | 4.34 | 0.70 | 0.73 | 6 | 0 | 355 | .262 | 399 | -- | -- | -- | -- | 41-68 | Billy Gardner, Johnny Goryl | |
| 1982 | Minnesota | AL | MLB | 19 | min | 25 | - | 7 | 7 | 40.2 | 4.87 | 1.67 | 12.39 | 1.33 | 2.66 | 2.66 | 1.00 | 1.18 | 0 | 0 | 0 | -- | 0 | -- | -- | -- | -- | 60-102 | 7 | Billy Gardner |
| NY Yankees | AL | MLB | 35 | nyy | 25 | - | 16 | 11 | 70.2 | 4.46 | 1.46 | 10.95 | 0.64 | 2.17 | 4.71 | 0.46 | 0.56 | 5 | 0 | 286 | .301 | 308 | -- | -- | -- | -- | 79-83 | 5 | Gene Michael, Clyde King, Bob Lemon | |
| 1983 | Columbus | IL | AAA | - | nyy | 26 | 34 | 24 | 18 | 134.0 | 6.04 | 1.75 | 11.75 | 1.41 | 3.96 | 3.96 | 1.00 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 83-57 | 1 | Johnny Oates |
| NY Yankees | AL | MLB | 35 | nyy | 26 | - | 5 | 0 | 16.2 | 4.32 | 1.26 | 7.02 | 0.54 | 4.32 | 3.78 | 1.14 | 0.91 | 0 | 0 | 61 | .213 | 69 | -- | -- | -- | -- | 91-71 | 3 | Billy Martin | |
| 1984 | Evansville | Amer | AAA | - | det | 27 | 61 | 19 | 14 | 108.1 | 3.24 | 1.22 | 9.06 | 1.25 | 1.91 | 4.49 | 0.43 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 72-82 | 6 | Gordon MacKenzie |
| 1987 | San Jose | Calif | A+ | - | - | 30 | 47 | 29 | 18 | 141.2 | 3.18 | 1.40 | 9.47 | 0.25 | 3.18 | 5.91 | 0.54 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 33-109 | 5 | Mike Verdi |
| 1989 | Louisville | Amer | AAA | - | stl | 32 | - | 27 | 3 | 57.2 | 3.59 | 1.37 | 10.30 | 0.47 | 2.03 | 4.06 | 0.50 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 71-74 | 4 | Mike Jorgensen |
| MLB Totals (6 years) | 135 | 117 | 800 | 15 | 1.40 | 9.77 | 0.77 | 2.82 | 4.11 | 0.69 | 0.83 | 57 | 13 | 2957 | .294 | 3263 | -- | -- | -- | -- | .466 | -- | ||||||||
| Minor League Totals (6 years) | 120 | 72 | 585 | 1 | 1.38 | 9.66 | 0.74 | 2.80 | 4.97 | 0.56 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .464 | -- | ||||||||
| AAA Totals (4 years) | 75 | 40 | 334 | 0 | 1.45 | 10.24 | 1.08 | 2.83 | 4.26 | 0.66 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .500 | -- | ||||||||
| AA Totals (1 year) | 16 | 14 | 109 | 1 | 1.16 | 8.17 | 0.33 | 2.23 | 5.94 | 0.37 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .555 | -- | ||||||||
| A+ Totals (1 year) | 29 | 18 | 142 | 0 | 1.40 | 9.44 | 0.25 | 3.17 | 5.89 | 0.54 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .232 | -- | ||||||||