Regular Season
| Season | TM | G | GS | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1977 | HOU | 24 | 23 | 8 | 9 | 4.04 | 112 | 4 | 1 | 0 | 142.2 | 138 | 64 | 70 | 11 | 68 | 4 | 1.44 |
1978 | HOU | 28 | 16 | 3 | 9 | 4.81 | 94 | 2 | 2 | 0 | 110.1 | 120 | 59 | 59 | 13 | 63 | 1 | 1.66 |
1979 | SEA | 30 | 30 | 10 | 15 | 4.05 | 115 | 6 | 2 | 0 | 182.1 | 185 | 82 | 92 | 25 | 68 | 4 | 1.39 |
1980 | SEA | 32 | 32 | 9 | 13 | 3.47 | 155 | 8 | 0 | 0 | 217.2 | 200 | 84 | 96 | 24 | 66 | 2 | 1.22 |
1981 | SEA | 21 | 20 | 9 | 9 | 4.45 | 85 | 5 | 2 | 0 | 121.1 | 128 | 60 | 62 | 14 | 39 | 3 | 1.38 |
1982 | SEA | 35 | 35 | 12 | 13 | 3.43 | 209 | 5 | 3 | 0 | 247.0 | 225 | 94 | 112 | 32 | 77 | 3 | 1.22 |
1983 | CWS | 34 | 34 | 16 | 10 | 3.35 | 193 | 5 | 2 | 0 | 217.1 | 191 | 81 | 88 | 19 | 71 | 2 | 1.21 |
1984 | CWS | 34 | 33 | 14 | 11 | 4.83 | 152 | 4 | 0 | 0 | 218.0 | 211 | 117 | 127 | 30 | 80 | 6 | 1.33 |
1985 | CWS | 34 | 34 | 10 | 14 | 4.87 | 198 | 4 | 1 | 0 | 210.2 | 211 | 114 | 121 | 30 | 100 | 4 | 1.48 |
1986 | CWS | 28 | 27 | 10 | 14 | 3.54 | 92 | 6 | 1 | 0 | 165.1 | 162 | 65 | 81 | 17 | 48 | 2 | 1.27 |
1987 | CWS | 34 | 34 | 16 | 11 | 3.58 | 124 | 11 | 2 | 0 | 228.2 | 216 | 91 | 100 | 38 | 49 | 0 | 1.16 |
1988 | KCR | 31 | 31 | 12 | 13 | 4.33 | 113 | 2 | 0 | 0 | 189.1 | 182 | 91 | 102 | 22 | 68 | 5 | 1.32 |
1989 | KCR | 14 | 14 | 4 | 1 | 4.66 | 35 | 0 | 0 | 0 | 75.1 | 87 | 39 | 40 | 8 | 18 | 1 | 1.39 |
1991 | CAL | 16 | 0 | 0 | 0 | 3.96 | 16 | 0 | 0 | 0 | 25.0 | 25 | 11 | 12 | 5 | 10 | 0 | 1.40 |
1992 | TEX | 36 | 0 | 1 | 1 | 6.32 | 30 | 0 | 0 | 0 | 37.0 | 39 | 26 | 27 | 3 | 21 | 3 | 1.62 |
| Career | 431 | 363 | 134 | 143 | 4.06 | 1,723 | 62 | 16 | 0 | 2388.0 | 2,320 | 1,078 | 1,189 | 291 | 846 | 40 | 1.33 |
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