Regular Season
| Season | TM | G | GS | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1982 | TEX | 8 | 8 | 3 | 4 | 5.01 | 24 | 3 | 0 | 0 | 46.2 | 51 | 26 | 26 | 5 | 13 | 3 | 1.37 |
1983 | TEX | 33 | 33 | 10 | 14 | 3.91 | 135 | 10 | 0 | 0 | 223.1 | 233 | 97 | 102 | 14 | 71 | 8 | 1.36 |
1984 | MIN | 36 | 36 | 15 | 13 | 3.68 | 144 | 10 | 1 | 0 | 252.0 | 246 | 103 | 113 | 35 | 54 | 8 | 1.19 |
1985 | MIN | 37 | 37 | 15 | 14 | 4.34 | 127 | 8 | 3 | 0 | 257.0 | 264 | 124 | 134 | 25 | 78 | 15 | 1.33 |
1986 | MIN | 34 | 33 | 13 | 14 | 4.77 | 114 | 8 | 1 | 0 | 198.0 | 234 | 105 | 123 | 26 | 57 | 14 | 1.47 |
1987 | MIN | 21 | 20 | 4 | 7 | 5.94 | 53 | 0 | 0 | 0 | 109.0 | 126 | 72 | 76 | 17 | 38 | 9 | 1.50 |
1988 | BOS | 31 | 18 | 9 | 6 | 5.97 | 73 | 1 | 0 | 0 | 126.2 | 149 | 84 | 87 | 25 | 37 | 6 | 1.47 |
1989 | BOS | 40 | 19 | 7 | 14 | 4.95 | 61 | 1 | 1 | 2 | 143.2 | 170 | 79 | 84 | 21 | 35 | 10 | 1.43 |
| Career | 240 | 204 | 76 | 86 | 4.58 | 731 | 41 | 6 | 2 | 1356.1 | 1,473 | 690 | 745 | 168 | 383 | 73 | 1.37 |
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