Regular Season
| Season | TM | G | GS | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1961 | CWS | 5 | 4 | 1 | 3 | 6.62 | 11 | 0 | 0 | 0 | 17.2 | 25 | 13 | 15 | 2 | 13 | 0 | 2.15 |
| 1962 | CWS | 20 | 19 | 7 | 6 | 4.89 | 63 | 5 | 1 | 0 | 108.2 | 108 | 59 | 62 | 10 | 43 | 2 | 1.39 |
| 1963 | CWS | 33 | 21 | 11 | 7 | 3.27 | 61 | 3 | 0 | 0 | 124.0 | 122 | 45 | 50 | 10 | 55 | 2 | 1.43 |
| 1964 | CWS | 32 | 28 | 13 | 9 | 1.88 | 138 | 9 | 2 | 0 | 210.2 | 142 | 44 | 54 | 11 | 55 | 4 | 0.94 |
| 1965 | CWS | 34 | 34 | 13 | 13 | 2.88 | 125 | 7 | 4 | 0 | 219.0 | 203 | 70 | 88 | 16 | 39 | 3 | 1.11 |
| 1966 | CWS | 37 | 29 | 10 | 13 | 2.43 | 124 | 4 | 2 | 1 | 211.0 | 185 | 57 | 64 | 14 | 53 | 6 | 1.13 |
| 1967 | CWS | 35 | 35 | 19 | 7 | 2.06 | 103 | 13 | 6 | 0 | 258.0 | 188 | 59 | 66 | 13 | 58 | 4 | 0.95 |
| 1968 | CWS | 35 | 35 | 12 | 14 | 2.37 | 102 | 4 | 1 | 0 | 223.2 | 197 | 59 | 75 | 16 | 70 | 14 | 1.19 |
| 1969 | CWS | 36 | 35 | 13 | 16 | 3.78 | 121 | 7 | 2 | 0 | 235.2 | 237 | 99 | 105 | 20 | 77 | 5 | 1.33 |
| 1970 | CWS | 28 | 26 | 6 | 16 | 4.86 | 77 | 4 | 0 | 0 | 172.1 | 198 | 93 | 99 | 18 | 41 | 4 | 1.39 |
| 1971 | CWS | 34 | 18 | 8 | 9 | 4.26 | 82 | 3 | 0 | 2 | 137.1 | 150 | 65 | 72 | 12 | 30 | 5 | 1.31 |
| 1972 | OAK | 32 | 6 | 3 | 4 | 3.00 | 58 | 0 | 0 | 1 | 84.0 | 74 | 28 | 33 | 3 | 20 | 4 | 1.12 |
| Career | 361 | 290 | 116 | 117 | 3.11 | 1,065 | 59 | 18 | 4 | 2002.0 | 1,829 | 691 | 783 | 145 | 554 | 53 | 1.19 |
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