Regular Season
| Season | TM | G | GS | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1965 | PIT | 2 | 0 | 0 | 0 | 0.00 | 5 | 0 | 0 | 0 | 5.0 | 2 | 0 | 0 | 0 | 1 | 0 | 0.60 |
1966 | PIT | 10 | 1 | 0 | 1 | 4.50 | 7 | 0 | 0 | 0 | 10.0 | 8 | 5 | 9 | 0 | 15 | 1 | 2.30 |
1968 | PIT | 39 | 2 | 0 | 3 | 2.02 | 66 | 0 | 0 | 3 | 62.1 | 42 | 14 | 18 | 1 | 39 | 1 | 1.30 |
1969 | PIT | 31 | 15 | 4 | 6 | 3.64 | 96 | 3 | 1 | 0 | 118.2 | 98 | 48 | 51 | 5 | 57 | 2 | 1.31 |
1970 | PIT | 42 | 19 | 15 | 6 | 3.04 | 124 | 5 | 3 | 3 | 163.0 | 129 | 55 | 56 | 6 | 89 | 1 | 1.34 |
1971 | PIT | 28 | 24 | 10 | 8 | 3.55 | 86 | 4 | 2 | 0 | 159.2 | 157 | 63 | 69 | 9 | 53 | 2 | 1.32 |
1972 | PIT | 26 | 12 | 4 | 6 | 3.40 | 48 | 2 | 0 | 2 | 92.2 | 98 | 35 | 41 | 4 | 34 | 0 | 1.42 |
1973 | PIT | 37 | 18 | 7 | 12 | 4.65 | 74 | 2 | 1 | 1 | 122.0 | 129 | 63 | 75 | 9 | 66 | 1 | 1.60 |
1974 | DET | 28 | 9 | 5 | 5 | 4.99 | 52 | 0 | 0 | 0 | 92.0 | 100 | 51 | 56 | 9 | 54 | 2 | 1.67 |
| Career | 243 | 100 | 45 | 47 | 3.64 | 558 | 16 | 7 | 9 | 825.1 | 763 | 334 | 375 | 43 | 408 | 10 | 1.42 |
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LAA 
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