| 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) |
| 1978 | GCL Rangers | GCL | Rk | - | tex | 17 | 17 | 14 | 5 | 52.0 | 2.25 | 1.17 | 7.10 | -- | 3.46 | 4.85 | 0.71 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 33-22 | 1 | Joe Klein |
| 1980 | Fort Lauderdale | FSL | A+ | - | nyy | 19 | 1 | 27 | 25 | 196.0 | 1.97 | 1.10 | 6.70 | 0.18 | 3.21 | 5.97 | 0.54 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 83-54 | 1 | -- |
| 1981 | Fort Lauderdale | FSL | A+ | - | nyy | 20 | - | 2 | 2 | 10.0 | 5.40 | 1.40 | 8.10 | 0.90 | 4.50 | 7.20 | 0.63 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 81-53 | 1 | Doug Holmquist |
| Columbus | IL | AAA | - | nyy | 20 | - | 5 | 4 | 32.0 | 2.53 | 1.22 | 7.03 | 0.84 | 3.94 | 10.41 | 0.38 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 88-51 | 1 | Frank Verdi | |
| NY Yankees | AL | MLB | 46,55 | nyy | 20 | - | 8 | 7 | 39.1 | 4.81 | 1.60 | 9.15 | 1.14 | 5.26 | 3.66 | 1.44 | 1.27 | 3 | 1 | 153 | .261 | 179 | -- | -- | -- | -- | 59-48 | Gene Michael, Bob Lemon | ||
| 1982 | Salt Lake | PCL | AAA | - | sea | 21 | - | 5 | 5 | 37.2 | 3.35 | 1.70 | 8.60 | 0.24 | 6.69 | 5.26 | 1.27 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 73-70 | 3 | Bobby Floyd |
| Seattle | AL | MLB | 24,43 | sea | 21 | - | 22 | 19 | 122.2 | 4.62 | 1.57 | 9.76 | 1.17 | 4.40 | 5.21 | 0.85 | 1.23 | 9 | 2 | 477 | .279 | 544 | -- | -- | -- | -- | 76-86 | 4 | Rene Lachemann | |
| 1983 | Salt Lake | PCL | AAA | - | sea | 22 | 33 | 16 | 16 | 99.0 | 5.18 | 1.44 | 10.45 | 1.00 | 2.55 | 6.73 | 0.38 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 67-75 | 3 | Bobby Floyd |
| Seattle | AL | MLB | 24 | sea | 22 | - | 10 | 5 | 32.0 | 7.88 | 1.84 | 10.69 | 1.69 | 5.91 | 3.09 | 1.91 | 1.77 | 1 | 1 | 129 | .295 | 153 | -- | -- | -- | -- | 60-102 | 7 | Del Crandall, Rene Lachemann | |
| 1984 | Salt Lake | PCL | AAA | - | sea | 23 | 26 | 17 | 17 | 112.0 | 5.63 | 1.71 | 11.09 | 1.21 | 4.34 | 7.15 | 0.61 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | 74-66 | 1 | Bobby Floyd |
| Chi White Sox | AL | MLB | 30 | chw | 23 | - | 20 | 9 | 74.2 | 4.46 | 1.19 | 8.68 | 1.08 | 2.05 | 4.34 | 0.47 | 1.07 | 5 | 1 | 283 | .254 | 304 | -- | -- | -- | -- | 74-88 | 6 | Tony LaRussa | |
| 1985 | Chi White Sox | AL | MLB | 30 | chw | 24 | - | 46 | 18 | 145.2 | 4.26 | 1.45 | 8.90 | 1.42 | 4.14 | 6.24 | 0.66 | 1.13 | 6 | 7 | 557 | .259 | 643 | -- | -- | -- | -- | 85-77 | 3 | Tony LaRussa |
| 1986 | Chi White Sox | AL | MLB | 30 | chw | 25 | 74 | 54 | 1 | 114.2 | 3.85 | 1.39 | 9.26 | 0.55 | 3.22 | 5.49 | 0.59 | 0.98 | 0 | 3 | 436 | .271 | 488 | -- | -- | -- | -- | 72-90 | 5 | Jim Fregosi, Tony LaRussa, Doug Rader |
| 1987 | Oakland | AL | MLB | 19,40 | oak | 26 | - | 54 | 6 | 123.2 | 3.93 | 1.25 | 8.73 | 0.87 | 2.55 | 6.84 | 0.37 | 0.87 | 2 | 5 | 482 | .249 | 530 | -- | -- | -- | -- | 81-81 | 3 | Tony LaRussa |
| 1988 | Oakland | AL | MLB | 19 | oak | 27 | 77 | 54 | 1 | 111.2 | 3.06 | 1.17 | 7.50 | 0.73 | 3.06 | 5.40 | 0.57 | 0.74 | 0 | 3 | 408 | .228 | 456 | 3.58 | 38.4 | 61.6 | 10.0 | 104-58 | 1 | Tony LaRussa |
| 1989 | Oakland | AL | MLB | 19 | oak | 28 | - | 50 | 0 | 80.0 | 3.26 | 1.13 | 6.75 | 0.56 | 3.38 | 7.88 | 0.43 | 0.60 | 0 | 2 | 296 | .203 | 335 | 3.71 | 36.6 | 63.4 | 12.9 | 99-63 | 1 | Tony LaRussa |
| 1990 | Oakland | AL | MLB | 19 | oak | 29 | - | 51 | 0 | 74.2 | 1.57 | 0.96 | 6.63 | 0.60 | 2.05 | 4.58 | 0.45 | 0.91 | 0 | 3 | 265 | .208 | 291 | 3.38 | 36.1 | 63.9 | 8.9 | 103-59 | 1 | Tony LaRussa |
| 1991 | Oakland | AL | MLB | 19 | oak | 30 | - | 44 | 0 | 48.2 | 6.84 | 1.71 | 11.10 | 2.22 | 4.25 | 4.25 | 1.00 | 0.76 | 0 | 3 | 196 | .306 | 229 | 3.35 | 38.4 | 61.6 | 9.8 | 84-78 | 4 | Tony LaRussa |
| 1992 | Oakland | AL | MLB | 19 | oak | 31 | - | 28 | 2 | 51.2 | 6.45 | 1.74 | 11.85 | 0.87 | 3.83 | 4.01 | 0.96 | 0.62 | 0 | 0 | 203 | .335 | 234 | 3.59 | 38.5 | 61.5 | 8.1 | 96-66 | 1 | Tony LaRussa |
| 1993 | Texas | AL | MLB | 23 | tex | 32 | - | 6 | 0 | 8.0 | 3.38 | 1.38 | 11.25 | -- | 1.13 | 4.50 | 0.25 | 0.45 | 0 | 0 | 0 | -- | 0 | -- | 36.4 | 63.6 | 7.6 | 86-76 | 2 | Kevin Kennedy |
| California | AL | MLB | 16 | cal | 32 | - | 46 | 0 | 52.2 | 3.08 | 1.39 | 8.54 | 0.51 | 3.93 | 5.30 | 0.74 | 0.92 | 0 | 2 | 199 | .251 | 231 | 3.76 | 38.4 | 61.6 | 7.2 | 71-91 | 5 | Buck Rodgers | |
| MLB Totals (13 years) | 493 | 68 | 1083 | 10 | 1.37 | 8.82 | 0.97 | 3.47 | 5.44 | 0.64 | 0.91 | 26 | 33 | 4084 | .260 | 4617 | -- | 37.7 | 62.3 | 9.7 | .520 | -- | ||||||||
| Minor League Totals (6 years) | 86 | 74 | 539 | 1 | 1.35 | 8.52 | 0.58 | 3.66 | 6.48 | 0.56 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .561 | -- | ||||||||
| AAA Totals (4 years) | 43 | 42 | 281 | 1 | 1.56 | 10.06 | 0.96 | 3.97 | 7.11 | 0.56 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .535 | -- | ||||||||
| A+ Totals (2 years) | 29 | 27 | 206 | 0 | 1.12 | 6.77 | 0.22 | 3.28 | 6.03 | 0.54 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .605 | -- | ||||||||
| Rookie Totals (1 year) | 14 | 5 | 52 | 0 | 1.17 | 7.10 | 0.00 | 3.46 | 4.85 | 0.71 | -- | -- | -- | -- | -- | -- | -- | -- | -- | -- | .600 | -- | ||||||||