Career Stats
| Season | TM | LG | W | L | ERA | G | GS | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | SO |
|---|
| 1961 | MIL | NL | 7 | 2 | 5.25 | 19 | 10 | 3 | 0 | 0 | 84.0 | 84 | 49 | 49 | 16 | 33 | 1 | 51 |
| 1962 | MIL | NL | 8 | 3 | 4.30 | 24 | 15 | 4 | 1 | 0 | 111.0 | 113 | 53 | 61 | 10 | 46 | 1 | 69 |
| 1963 | MIL | NL | 9 | 11 | 3.78 | 41 | 18 | 4 | 2 | 1 | 145.1 | 131 | 61 | 68 | 17 | 63 | 2 | 100 |
| 1964 | MIL | NL | 19 | 14 | 3.56 | 38 | 34 | 15 | 3 | 2 | 242.2 | 206 | 96 | 112 | 20 | 82 | 3 | 163 |
| 1965 | MIL | NL | 24 | 11 | 3.29 | 40 | 38 | 16 | 1 | 1 | 279.0 | 247 | 102 | 115 | 20 | 119 | 3 | 211 |
| 1966 | ATL | NL | 14 | 11 | 4.12 | 39 | 38 | 11 | 1 | 1 | 257.2 | 253 | 118 | 134 | 29 | 116 | 6 | 178 |
| 1967 | ATL | NL | 4 | 7 | 5.17 | 16 | 16 | 1 | 0 | 0 | 76.2 | 85 | 44 | 50 | 13 | 31 | 0 | 55 |
| 1968 | ATL | NL | 1 | 3 | 4.26 | 8 | 1 | 0 | 0 | 0 | 19.0 | 15 | 9 | 9 | 0 | 11 | 0 | 7 |
| 1968 | CIN | NL | 4 | 3 | 4.04 | 17 | 17 | 2 | 2 | 0 | 91.1 | 81 | 41 | 49 | 7 | 48 | 3 | 65 |
| 1968 | TOT | NL | 5 | 6 | 4.08 | 25 | 18 | 2 | 2 | 0 | 110.1 | 96 | 50 | 58 | 7 | 59 | 3 | 72 |
| 1969 | CIN | NL | 11 | 17 | 5.03 | 35 | 34 | 6 | 2 | 0 | 189.2 | 184 | 106 | 123 | 24 | 103 | 5 | 103 |
| 1970 | CIN | NL | 9 | 7 | 3.83 | 30 | 18 | 0 | 0 | 1 | 148.0 | 136 | 63 | 69 | 10 | 78 | 4 | 56 |
| 1971 | CIN | NL | 3 | 6 | 3.88 | 28 | 8 | 1 | 1 | 0 | 97.1 | 79 | 42 | 42 | 12 | 49 | 4 | 51 |
| 1972 | STL | NL | 0 | 2 | 5.19 | 17 | 0 | 0 | 0 | 0 | 26.0 | 29 | 15 | 17 | 2 | 19 | 1 | 11 |
| Career | | | 113 | 97 | 4.07 | 352 | 247 | 63 | 13 | 6 | 1767.2 | 1,643 | 799 | 898 | 180 | 798 | 33 | 1,120 |
