Career Stats
| Season | TM | LG | W | L | ERA | G | GS | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | SO |
|---|
| 1963 | HOU | NL | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 0 | 3.0 | 2 | 0 | 0 | 0 | 0 | 0 | 2 |
| 1964 | HOU | NL | 0 | 0 | 4.91 | 7 | 0 | 0 | 0 | 0 | 11.0 | 13 | 6 | 11 | 3 | 6 | 0 | 4 |
| 1966 | STL | NL | 5 | 1 | 1.54 | 57 | 0 | 0 | 0 | 13 | 76.0 | 57 | 13 | 16 | 5 | 21 | 4 | 63 |
| 1967 | STL | NL | 4 | 4 | 2.59 | 57 | 0 | 0 | 0 | 14 | 66.0 | 52 | 19 | 25 | 5 | 20 | 1 | 50 |
| 1968 | STL | NL | 8 | 2 | 1.47 | 47 | 0 | 0 | 0 | 17 | 49.0 | 34 | 8 | 9 | 2 | 12 | 0 | 42 |
| 1969 | STL | NL | 2 | 3 | 2.87 | 45 | 0 | 0 | 0 | 15 | 53.1 | 44 | 17 | 18 | 5 | 9 | 1 | 35 |
| 1970 | PHI | NL | 9 | 5 | 2.65 | 44 | 0 | 0 | 0 | 9 | 57.2 | 53 | 17 | 20 | 5 | 20 | 1 | 39 |
| 1971 | PHI | NL | 4 | 5 | 1.97 | 49 | 0 | 0 | 0 | 9 | 73.0 | 57 | 16 | 19 | 6 | 21 | 1 | 57 |
| 1972 | ATL | NL | 1 | 3 | 6.56 | 25 | 0 | 0 | 0 | 2 | 23.1 | 34 | 17 | 18 | 4 | 8 | 1 | 19 |
| 1972 | PHI | NL | 0 | 2 | 2.08 | 15 | 0 | 0 | 0 | 3 | 21.2 | 21 | 5 | 6 | 2 | 5 | 1 | 12 |
| 1972 | TOT | NL | 1 | 5 | 4.40 | 40 | 0 | 0 | 0 | 5 | 45.0 | 55 | 22 | 24 | 6 | 13 | 2 | 31 |
| 1973 | ATL | NL | 2 | 2 | 6.39 | 20 | 0 | 0 | 0 | 2 | 12.2 | 17 | 9 | 9 | 1 | 4 | 0 | 10 |
| 1973 | KCR | AL | 2 | 0 | 5.12 | 22 | 0 | 0 | 0 | 4 | 19.1 | 28 | 11 | 11 | 0 | 13 | 0 | 15 |
| 1973 | TOT | | 4 | 2 | 5.63 | 42 | 0 | 0 | 0 | 6 | 32.0 | 45 | 20 | 20 | 1 | 17 | 0 | 25 |
| 1974 | KCR | AL | 2 | 3 | 3.82 | 30 | 0 | 0 | 0 | 2 | 35.1 | 32 | 15 | 15 | 3 | 12 | 4 | 24 |
| 1975 | PHI | NL | 0 | 0 | 2.57 | 25 | 0 | 0 | 0 | 0 | 21.0 | 25 | 6 | 6 | 3 | 8 | 1 | 20 |
| 1976 | TEX | AL | 0 | 4 | 5.14 | 41 | 0 | 0 | 0 | 8 | 35.0 | 41 | 20 | 22 | 3 | 19 | 0 | 15 |
| 1977 | CIN | NL | 0 | 0 | 12.71 | 8 | 0 | 0 | 0 | 0 | 5.2 | 9 | 8 | 8 | 3 | 3 | 3 | 5 |
| Career | | | 39 | 34 | 2.99 | 493 | 0 | 0 | 0 | 98 | 563.0 | 519 | 187 | 213 | 50 | 181 | 18 | 412 |
