| Year | Team | G | GS | W | L | SV | CG | SHO | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1989 | 13 | 4 | 2 | 2 | 0 | 4 | 0 | 37.1 | 40 | 18 | 12 | 2 | 10 | 21 | 2.89 | 1.34 | |
| 1990 | 14 | 11 | 4 | 2 | 0 | 3 | 1 | 75.2 | 55 | 29 | 25 | 3 | 26 | 49 | 2.97 | 1.07 | |
| 1991 | 30 | 18 | 13 | 3 | 1 | 4 | 2 | 141 | 106 | 46 | 33 | 6 | 33 | 96 | 2.11 | .990 | |
| 1992 | 26 | 24 | 9 | 7 | 0 | 2 | 1 | 156.1 | 176 | 80 | 63 | 9 | 15 | 61 | 3.63 | 1.22 | |
| 1993 | 32 | 23 | 12 | 7 | 0 | 2 | 1 | 167.1 | 190 | 80 | 72 | 9 | 24 | 73 | 3.87 | 1.28 | |
| 1994 | 3 | 3 | 2 | 1 | 0 | 0 | 0 | 20 | 18 | 6 | 4 | 0 | 1 | 11 | 1.80 | .950 | |
| 1995 | Indians | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 6 | 9 | 4 | 4 | 1 | 2 | 0 | 6.00 | 1.83 |
| 1995 | 25 | 24 | 17 | 3 | 0 | 3 | 0 | 164.2 | 168 | 71 | 64 | 9 | 28 | 93 | 3.50 | 1.19 | |
| 1996 | Indians | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1.2 | 4 | 2 | 2 | 0 | 3 | 0 | 10.80 | 4.20 |
| 1996 | 26 | 24 | 11 | 8 | 0 | 5 | 0 | 165.1 | 161 | 66 | 60 | 19 | 36 | 82 | 3.27 | 1.19 | |
| 1997 | Giants | 28 | 3 | 2 | 5 | 0 | 0 | 0 | 65.2 | 86 | 40 | 38 | 8 | 20 | 34 | 5.21 | 1.61 |
| 1997 | 6 | 5 | 3 | 1 | 0 | 0 | 0 | 36 | 43 | 21 | 19 | 4 | 11 | 16 | 4.75 | 1.50 | |
| 2000 | 19 | 14 | 6 | 5 | 0 | 1 | 0 | 103 | 91 | 48 | 39 | 7 | 38 | 59 | 3.41 | 1.25 | |
| 2001 | 7 | 7 | 0 | 2 | 0 | 0 | 0 | 36 | 36 | 15 | 12 | 2 | 3 | 26 | 3.00 | 1.08 | |
| 2002 | Phillies | 14 | 11 | 4 | 4 | 0 | 0 | 0 | 71.1 | 78 | 33 | 32 | 11 | 13 | 35 | 4.04 | 1.28 |
| 2002 | 17 | 17 | 14 | 0 | 0 | 1 | 0 | 111 | 83 | 24 | 23 | 4 | 16 | 74 | 1.86 | .890 | |
| 2003 | Padres | 18 | 1 | 1 | 1 | 0 | 0 | 0 | 25.1 | 34 | 20 | 19 | 5 | 6 | 18 | 6.75 | 1.58 |
| 2003 | Rockies | 4 | 0 | 0 | 0 | 0 | 0 | 0 | 6.2 | 7 | 3 | 3 | 2 | 0 | 4 | 4.05 | 1.05 |
| 2003 | Phillies | 6 | 3 | 0 | 2 | 0 | 0 | 0 | 19.1 | 28 | 13 | 13 | 3 | 4 | 16 | 6.05 | 1.66 |
| 2003 | 5 | 4 | 2 | 2 | 0 | 0 | 0 | 24.2 | 32 | 15 | 13 | 3 | 3 | 18 | 4.74 | 1.42 | |
| 2004 | Twins | 48 | 0 | 2 | 3 | 0 | 0 | 0 | 70 | 84 | 38 | 35 | 9 | 24 | 47 | 4.50 | 1.54 |
| 2005 | 6 | 4 | 1 | 1 | 1 | 0 | 0 | 19.1 | 27 | 13 | 13 | 4 | 7 | 13 | 6.05 | 1.76 | |
| Career Total | 120 | 19 | 9 | 16 | 0 | 0 | 0 | 266 | 330 | 153 | 146 | 39 | 72 | 154 | 4.94 | 1.51 | |
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