Regular Season
| Season | TM | G | GS | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
1976 | HOU | 20 | 4 | 3 | 2 | 3.54 | 26 | 1 | 1 | 1 | 53.1 | 45 | 21 | 21 | 4 | 14 | 0 | 1.11 |
1977 | HOU | 54 | 1 | 5 | 5 | 2.33 | 67 | 0 | 0 | 7 | 89.0 | 77 | 23 | 34 | 6 | 24 | 0 | 1.13 |
1978 | HOU | 62 | 0 | 4 | 9 | 3.07 | 96 | 0 | 0 | 11 | 88.0 | 85 | 30 | 32 | 5 | 32 | 0 | 1.33 |
1979 | HOU | 63 | 0 | 8 | 7 | 1.77 | 83 | 0 | 0 | 22 | 91.1 | 80 | 18 | 20 | 8 | 23 | 4 | 1.13 |
1980 | HOU | 64 | 0 | 8 | 4 | 2.19 | 75 | 0 | 0 | 17 | 90.1 | 65 | 22 | 26 | 3 | 22 | 2 | 0.96 |
1981 | HOU | 49 | 0 | 5 | 5 | 1.84 | 41 | 0 | 0 | 10 | 63.2 | 43 | 13 | 17 | 4 | 22 | 2 | 1.02 |
1982 | HOU | 9 | 0 | 0 | 0 | 0.71 | 7 | 0 | 0 | 4 | 12.2 | 7 | 1 | 2 | 0 | 2 | 0 | 0.71 |
1984 | HOU | 32 | 0 | 0 | 0 | 3.02 | 26 | 0 | 0 | 0 | 47.2 | 39 | 16 | 16 | 5 | 16 | 0 | 1.15 |
1985 | NYM | 8 | 0 | 0 | 0 | 12.66 | 3 | 0 | 0 | 0 | 10.2 | 21 | 15 | 18 | 1 | 8 | 0 | 2.72 |
1986 | BOS | 53 | 0 | 2 | 0 | 4.84 | 30 | 0 | 0 | 12 | 44.2 | 54 | 24 | 26 | 4 | 16 | 2 | 1.57 |
1987 | BOS | 47 | 0 | 2 | 6 | 6.93 | 35 | 0 | 0 | 0 | 37.2 | 46 | 29 | 29 | 8 | 16 | 0 | 1.65 |
| Career | 461 | 5 | 37 | 38 | 3.03 | 489 | 1 | 1 | 84 | 629.0 | 562 | 212 | 241 | 48 | 195 | 10 | 1.20 |
Astros 
Mariners 
Rangers 
Athletics 
Angels 
DET 
KCR 
Phillies 
Braves 
Brewers 
Cubs 
Dodgers 
Padres 
Yankees 
Orioles 
Guardians 
MIN 
STL 
CWS 
COL 
TBR 
NYM 
