| Year | Tm | G | W | L | Sv | IP | K | ERA | WHIP | R$ | T15 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1980 | CHC | 18 | 2 | 0 | 0 | 21 | 17 | 2.91 | 1.62 | $0 | |
| 1981 | CHC | 40 | 3 | 6 | 1 | 66 | 50 | 3.51 | 1.32 | $4 | |
| 1982 | CHC | 72 | 2 | 5 | 17 | 117 | 99 | 2.69 | 1.21 | $16 | |
| 1983 | CHC | 66 | 4 | 10 | 29 | 103 | 91 | 1.65 | 1.07 | $26 | T15 |
| 1984 | CHC | 69 | 9 | 7 | 33 | 101 | 86 | 3.65 | 1.32 | $19 | |
| 1985 | CHC | 65 | 7 | 4 | 33 | 97 | 112 | 3.04 | 1.22 | $23 | T15 |
| 1986 | CHC | 66 | 9 | 9 | 31 | 90 | 93 | 3.09 | 1.23 | $20 | |
| 1987 | CHC | 62 | 4 | 10 | 36 | 83 | 96 | 3.12 | 1.39 | $21 | |
| 1988 | BOS | 64 | 4 | 5 | 29 | 83 | 96 | 2.80 | 1.30 | $17 | |
| 1989 | BOS | 64 | 6 | 1 | 25 | 70 | 96 | 3.57 | 1.22 | $14 | |
| 1990 | BOS-STL | 64 | 5 | 5 | 31 | 83 | 87 | 2.06 | 1.21 | $20 | |
| 1991 | STL | 67 | 6 | 3 | 47 | 73 | 67 | 2.34 | 1.14 | $24 | T15 |
| 1992 | STL | 70 | 4 | 9 | 43 | 75 | 60 | 3.12 | 1.17 | $19 | |
| 1993 | STL-NYY | 63 | 2 | 4 | 46 | 58 | 60 | 3.88 | 1.16 | $19 | |
| 1994 | BAL | 41 | 1 | 4 | 33 | 38 | 42 | 3.29 | 1.17 | $20 | |
| 1995 | CAL | 52 | 0 | 5 | 37 | 49 | 43 | 3.47 | 1.36 | $16 | |
| 1996 | CAL-CIN | 54 | 3 | 4 | 2 | 55 | 41 | 3.74 | 1.50 | $0 | |
| 1997 | MON | 25 | 0 | 1 | 5 | 21 | 15 | 5.82 | 1.66 | -$2 |