Career Stats
| Season | TM | LG | W | L | ERA | G | GS | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | SO |
|---|
| 1967 | CIN | NL | 14 | 8 | 2.58 | 33 | 32 | 8 | 5 | 0 | 226.2 | 193 | 65 | 73 | 18 | 62 | 5 | 206 |
| 1968 | CIN | NL | 9 | 4 | 2.40 | 23 | 22 | 4 | 2 | 0 | 150.0 | 105 | 40 | 48 | 10 | 49 | 3 | 111 |
| 1969 | CIN | NL | 8 | 8 | 3.56 | 16 | 15 | 2 | 1 | 0 | 108.2 | 102 | 43 | 45 | 11 | 40 | 0 | 83 |
| 1970 | CIN | NL | 18 | 7 | 3.27 | 37 | 37 | 4 | 2 | 0 | 250.2 | 226 | 91 | 102 | 25 | 96 | 1 | 181 |
| 1971 | CIN | NL | 12 | 15 | 3.16 | 35 | 35 | 9 | 0 | 0 | 244.2 | 208 | 86 | 91 | 12 | 59 | 2 | 146 |
| 1972 | CIN | NL | 15 | 5 | 1.99 | 25 | 25 | 6 | 2 | 0 | 176.0 | 147 | 39 | 48 | 13 | 30 | 1 | 90 |
| 1973 | CIN | NL | 0 | 1 | 3.48 | 2 | 2 | 0 | 0 | 0 | 10.1 | 6 | 4 | 4 | 1 | 7 | 0 | 3 |
| 1975 | CIN | NL | 15 | 9 | 3.16 | 32 | 32 | 5 | 1 | 0 | 210.2 | 202 | 74 | 75 | 18 | 29 | 1 | 74 |
| 1976 | CIN | NL | 15 | 9 | 3.46 | 34 | 34 | 7 | 1 | 0 | 239.1 | 232 | 92 | 96 | 28 | 27 | 1 | 113 |
| 1977 | CIN | NL | 4 | 1 | 4.81 | 8 | 8 | 0 | 0 | 0 | 39.1 | 53 | 21 | 22 | 5 | 12 | 0 | 28 |
| 1977 | CAL | AL | 0 | 3 | 8.84 | 5 | 5 | 0 | 0 | 0 | 18.1 | 31 | 18 | 19 | 5 | 2 | 0 | 4 |
| 1977 | TOT | | 4 | 4 | 6.09 | 13 | 13 | 0 | 0 | 0 | 57.2 | 84 | 39 | 41 | 10 | 14 | 0 | 32 |
| Career | | | 110 | 70 | 3.08 | 250 | 247 | 45 | 14 | 0 | 1674.2 | 1,505 | 573 | 623 | 146 | 413 | 14 | 1,039 |
