Regular Season
| Season | TM | G | GS | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1968 | CAL | 52 | 4 | 4 | 4 | 2.79 | 66 | 0 | 0 | 3 | 84.0 | 67 | 26 | 27 | 7 | 37 | 2 | 1.24 |
1969 | SEA | 34 | 27 | 7 | 12 | 5.62 | 126 | 2 | 1 | 0 | 158.2 | 166 | 99 | 104 | 29 | 71 | 2 | 1.49 |
1970 | MIL | 37 | 29 | 14 | 12 | 3.39 | 161 | 11 | 0 | 0 | 233.1 | 204 | 88 | 91 | 20 | 71 | 6 | 1.18 |
1971 | MIL | 36 | 36 | 14 | 14 | 3.13 | 169 | 9 | 5 | 0 | 264.2 | 225 | 92 | 100 | 29 | 73 | 4 | 1.13 |
1972 | BOS | 38 | 35 | 17 | 13 | 3.24 | 168 | 13 | 4 | 0 | 253.0 | 232 | 91 | 102 | 19 | 65 | 9 | 1.17 |
1973 | BOS | 34 | 30 | 15 | 15 | 4.31 | 119 | 11 | 2 | 1 | 219.1 | 238 | 105 | 112 | 31 | 69 | 8 | 1.40 |
1974 | KCR | 25 | 11 | 3 | 7 | 3.99 | 50 | 2 | 0 | 0 | 117.1 | 121 | 52 | 55 | 10 | 28 | 2 | 1.27 |
1975 | KCR | 44 | 15 | 10 | 10 | 3.25 | 89 | 5 | 1 | 5 | 177.0 | 173 | 64 | 77 | 13 | 45 | 3 | 1.23 |
1976 | KCR | 44 | 15 | 8 | 14 | 2.49 | 65 | 4 | 1 | 5 | 141.0 | 114 | 39 | 51 | 9 | 38 | 3 | 1.08 |
1977 | KCR | 31 | 10 | 10 | 3 | 3.58 | 55 | 4 | 0 | 0 | 128.1 | 115 | 51 | 56 | 16 | 37 | 2 | 1.18 |
1978 | KCR | 32 | 5 | 3 | 3 | 3.32 | 30 | 2 | 0 | 4 | 78.2 | 72 | 29 | 41 | 8 | 25 | 2 | 1.23 |
1979 | KCR | 31 | 7 | 5 | 2 | 4.58 | 41 | 1 | 0 | 3 | 94.1 | 109 | 48 | 50 | 11 | 21 | 1 | 1.38 |
1980 | KCR | 37 | 0 | 4 | 0 | 3.64 | 40 | 0 | 0 | 4 | 89.0 | 97 | 36 | 39 | 7 | 23 | 1 | 1.35 |
| Career | 475 | 224 | 114 | 109 | 3.62 | 1,179 | 64 | 14 | 25 | 2038.2 | 1,933 | 820 | 905 | 209 | 603 | 45 | 1.24 |
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