| Year | Team | G | GS | W | L | SV | CG | SHO | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1986 | 7 | 7 | 3 | 2 | 0 | 1 | 0 | 41.2 | 27 | 21 | 13 | 0 | 17 | 53 | 2.81 | 1.06 | |
| 1987 | 25 | 24 | 11 | 11 | 0 | 6 | 0 | 170 | 174 | 81 | 67 | 10 | 60 | 126 | 3.55 | 1.38 | |
| 1988 | 26 | 26 | 16 | 5 | 0 | 4 | 2 | 182.2 | 127 | 48 | 35 | 2 | 77 | 127 | 1.72 | 1.12 | |
| 1989 | 24 | 24 | 11 | 7 | 0 | 3 | 1 | 157.1 | 144 | 69 | 59 | 7 | 96 | 142 | 3.38 | 1.53 | |
| 1990 | Reds | 3 | 3 | 0 | 2 | 0 | 0 | 0 | 11.1 | 13 | 9 | 8 | 2 | 12 | 4 | 6.35 | 2.21 |
| 1990 | 24 | 24 | 15 | 1 | 0 | 5 | 3 | 149 | 118 | 43 | 36 | 7 | 63 | 149 | 2.17 | 1.21 | |
| 1991 | Reds | 20 | 18 | 7 | 7 | 0 | 0 | 0 | 99.2 | 92 | 51 | 45 | 4 | 48 | 50 | 4.06 | 1.40 |
| 1992 | Reds | 28 | 26 | 7 | 10 | 0 | 0 | 0 | 147.1 | 149 | 75 | 69 | 13 | 55 | 79 | 4.21 | 1.38 |
| 1993 | Marlins | 32 | 32 | 11 | 12 | 0 | 1 | 0 | 191 | 207 | 106 | 99 | 18 | 66 | 108 | 4.66 | 1.43 |
| 1994 | Marlins | 13 | 13 | 4 | 4 | 0 | 1 | 1 | 73.1 | 79 | 30 | 25 | 5 | 23 | 40 | 3.07 | 1.39 |
| 1994 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 7.1 | 4 | 3 | 1 | 0 | 3 | 5 | 1.23 | .950 | |
| 1995 | Marlins | 25 | 24 | 9 | 6 | 0 | 3 | 2 | 161 | 157 | 73 | 68 | 17 | 47 | 126 | 3.80 | 1.27 |
| 1995 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 3 | 1 | 0 | 0 | 0 | 4 | 0.00 | .750 | |
| 1996 | Marlins | 38 | 9 | 5 | 8 | 0 | 0 | 0 | 81 | 104 | 65 | 59 | 14 | 27 | 50 | 6.56 | 1.62 |
| 1996 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 4 | 3 | 0 | 0 | 0 | 0 | 8 | 0.00 | .750 | |
| 1997 | Red Sox | 29 | 8 | 3 | 4 | 1 | 0 | 0 | 65.1 | 81 | 45 | 43 | 5 | 27 | 48 | 5.92 | 1.65 |
| 1998 | Marlins | 3 | 3 | 0 | 2 | 0 | 0 | 0 | 13.2 | 20 | 11 | 10 | 3 | 8 | 8 | 6.59 | 2.05 |
| 1998 | 5 | 5 | 1 | 3 | 0 | 0 | 0 | 28 | 35 | 17 | 15 | 2 | 14 | 22 | 4.82 | 1.75 | |
| 2001 | 49 | 4 | 10 | 4 | 1 | 0 | 0 | 82.1 | 85 | 31 | 27 | 5 | 24 | 83 | 2.95 | 1.32 | |
| 2002 | Braves | 63 | 0 | 7 | 2 | 0 | 0 | 0 | 76 | 53 | 15 | 8 | 1 | 31 | 63 | .950 | 1.11 |
| 2003 | Yankees | 62 | 0 | 3 | 2 | 1 | 0 | 0 | 63 | 65 | 23 | 20 | 5 | 11 | 45 | 2.86 | 1.21 |
| 2004 | Athletics | 41 | 0 | 4 | 1 | 1 | 0 | 0 | 53.2 | 56 | 21 | 16 | 4 | 13 | 34 | 2.68 | 1.29 |
| 2004 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 4 | 6 | 0 | 0 | 0 | 0 | 5 | 0.00 | 1.50 | |
| 2005 | Padres | 55 | 0 | 5 | 1 | 0 | 0 | 0 | 58.2 | 51 | 25 | 25 | 9 | 14 | 34 | 3.84 | 1.11 |
| 2006 | Reds | 29 | 0 | 1 | 1 | 0 | 0 | 0 | 28.2 | 36 | 23 | 22 | 5 | 5 | 23 | 6.91 | 1.43 |
| Career Total | 441 | 136 | 66 | 62 | 3 | 5 | 3 | 1123.2 | 1163 | 572 | 517 | 105 | 387 | 712 | 4.14 | 1.38 | |
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