Regular Season
| Season | TM | G | GS | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1966 | CAL | 20 | 13 | 4 | 7 | 3.74 | 37 | 3 | 1 | 0 | 91.1 | 92 | 38 | 39 | 11 | 25 | 1 | 1.28 |
1967 | CAL | 20 | 11 | 5 | 5 | 3.26 | 35 | 1 | 0 | 0 | 77.1 | 76 | 28 | 33 | 5 | 24 | 1 | 1.29 |
1968 | CAL | 41 | 13 | 10 | 6 | 3.94 | 71 | 2 | 1 | 3 | 125.2 | 123 | 55 | 58 | 13 | 44 | 2 | 1.33 |
1969 | CAL | 37 | 5 | 1 | 8 | 4.10 | 31 | 0 | 0 | 0 | 63.2 | 66 | 29 | 33 | 4 | 30 | 1 | 1.51 |
1970 | CAL | 39 | 39 | 22 | 12 | 2.83 | 110 | 7 | 2 | 0 | 260.2 | 226 | 82 | 97 | 24 | 88 | 7 | 1.20 |
1971 | CAL | 37 | 37 | 16 | 17 | 2.99 | 135 | 10 | 2 | 0 | 276.2 | 225 | 92 | 105 | 17 | 82 | 3 | 1.11 |
1972 | CAL | 35 | 35 | 18 | 11 | 2.98 | 87 | 15 | 2 | 0 | 251.0 | 229 | 83 | 101 | 14 | 80 | 4 | 1.23 |
1973 | CAL | 37 | 36 | 11 | 19 | 3.68 | 65 | 13 | 1 | 0 | 257.0 | 273 | 105 | 120 | 26 | 76 | 3 | 1.36 |
1974 | MIL | 38 | 32 | 9 | 20 | 4.42 | 64 | 15 | 0 | 0 | 232.0 | 264 | 114 | 122 | 22 | 54 | 0 | 1.37 |
1975 | TEX | 25 | 14 | 4 | 6 | 4.44 | 32 | 1 | 0 | 0 | 93.1 | 105 | 46 | 56 | 7 | 47 | 1 | 1.63 |
| Career | 329 | 235 | 100 | 111 | 3.50 | 667 | 67 | 9 | 3 | 1728.2 | 1,679 | 672 | 764 | 143 | 550 | 23 | 1.29 |
Astros 
Mariners 
Rangers 
Athletics 
Angels 
DET 
MIN 
Phillies 
Braves 
Brewers 
Cubs 
Dodgers 
Padres 
Yankees 
Orioles 
Guardians 
Royals 
STL 
CWS 
COL 
TBR 
NYM 
