Regular Season
| Season | TM | G | GS | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1961 | KCA | 12 | 8 | 2 | 5 | 4.85 | 32 | 2 | 1 | 0 | 55.2 | 49 | 30 | 33 | 3 | 46 | 1 | 1.71 |
1964 | KCA | 5 | 4 | 0 | 2 | 7.36 | 9 | 0 | 0 | 0 | 14.2 | 22 | 12 | 14 | 1 | 9 | 2 | 2.11 |
1965 | KCA | 7 | 5 | 2 | 4 | 5.04 | 22 | 0 | 0 | 0 | 25.0 | 29 | 14 | 14 | 1 | 8 | 0 | 1.48 |
1966 | KCA | 36 | 22 | 14 | 9 | 2.99 | 87 | 4 | 1 | 3 | 177.2 | 144 | 59 | 69 | 8 | 63 | 6 | 1.17 |
1967 | KCA | 48 | 19 | 7 | 17 | 4.27 | 96 | 0 | 0 | 6 | 160.0 | 140 | 76 | 85 | 17 | 67 | 4 | 1.29 |
1968 | OAK | 36 | 25 | 10 | 11 | 3.11 | 105 | 2 | 0 | 4 | 185.0 | 147 | 64 | 68 | 16 | 62 | 3 | 1.13 |
1969 | OAK | 43 | 16 | 7 | 7 | 4.44 | 85 | 4 | 2 | 7 | 140.0 | 134 | 69 | 75 | 23 | 48 | 5 | 1.30 |
1970 | MIL | 37 | 35 | 13 | 18 | 4.75 | 130 | 8 | 1 | 0 | 216.0 | 235 | 114 | 130 | 33 | 67 | 4 | 1.40 |
1971 | MIL | 43 | 22 | 8 | 12 | 2.94 | 92 | 1 | 0 | 0 | 180.1 | 164 | 59 | 67 | 23 | 62 | 5 | 1.25 |
1972 | BOS | 24 | 7 | 1 | 3 | 6.38 | 35 | 0 | 0 | 1 | 60.2 | 74 | 43 | 48 | 9 | 28 | 3 | 1.68 |
1973 | STL | 1 | 0 | 0 | 0 | 0.00 | 1 | 0 | 0 | 0 | 2.0 | 2 | 0 | 0 | 0 | 1 | 0 | 1.50 |
1974 | ATL | 29 | 4 | 4 | 3 | 4.18 | 27 | 0 | 0 | 0 | 66.2 | 65 | 31 | 32 | 3 | 32 | 2 | 1.45 |
| Career | 321 | 167 | 68 | 91 | 4.00 | 721 | 21 | 5 | 21 | 1283.2 | 1,205 | 571 | 635 | 137 | 493 | 35 | 1.32 |
Astros 
Mariners 
Rangers 
Athletics 
Angels 
CHC 
Phillies 
Braves 
Brewers 
Dodgers 
Padres 
Yankees 
Orioles 
Guardians 
Royals 
PIT 
MIA 
WSH 
BOS 
