| Year | Team | G | GS | W | L | SV | CG | SHO | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1996 | 13 | 13 | 5 | 3 | 0 | 1 | 1 | 78.1 | 51 | 20 | 15 | 2 | 15 | 98 | 1.72 | .840 | |
| 1997 | 26 | 25 | 11 | 8 | 1 | 2 | 1 | 146 | 151 | 86 | 66 | 12 | 56 | 135 | 4.07 | 1.42 | |
| 1998 | 28 | 28 | 10 | 10 | 0 | 2 | 0 | 175 | 185 | 83 | 72 | 13 | 53 | 131 | 3.70 | 1.36 | |
| 1999 | 28 | 28 | 15 | 7 | 0 | 1 | 0 | 191 | 184 | 81 | 65 | 22 | 45 | 133 | 3.06 | 1.20 | |
| 2000 | 5 | 5 | 2 | 1 | 0 | 1 | 1 | 29 | 28 | 19 | 15 | 1 | 5 | 13 | 4.66 | 1.14 | |
| 2001 | 57 | 0 | 5 | 1 | 3 | 0 | 0 | 73.2 | 89 | 33 | 32 | 10 | 21 | 72 | 3.91 | 1.49 | |
| 2002 | Astros | 11 | 1 | 0 | 2 | 0 | 0 | 0 | 9.2 | 13 | 8 | 7 | 4 | 5 | 6 | 6.52 | 1.86 |
| 2002 | 27 | 27 | 12 | 8 | 0 | 2 | 1 | 180 | 160 | 59 | 51 | 13 | 45 | 114 | 2.55 | 1.14 | |
| 2003 | Astros | 32 | 31 | 15 | 9 | 0 | 0 | 0 | 160.2 | 180 | 98 | 91 | 23 | 64 | 99 | 5.10 | 1.52 |
| 2003 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 6.2 | 7 | 5 | 5 | 2 | 2 | 6 | 6.75 | 1.35 | |
| 2004 | Indians | 8 | 0 | 1 | 1 | 0 | 0 | 0 | 14 | 22 | 22 | 19 | 5 | 9 | 6 | 12.21 | 2.21 |
| 2004 | 14 | 12 | 4 | 5 | 0 | 0 | 0 | 64.1 | 91 | 58 | 52 | 10 | 22 | 28 | 7.27 | 1.76 | |
| 2005 | 28 | 18 | 5 | 11 | 0 | 0 | 0 | 120.1 | 162 | 77 | 73 | 18 | 29 | 82 | 5.46 | 1.59 | |
| 2006 | 11 | 7 | 1 | 6 | 0 | 0 | 0 | 38.2 | 58 | 34 | 33 | 6 | 18 | 21 | 7.68 | 1.97 | |
| Career Total | 51 | 32 | 16 | 12 | 0 | 0 | 0 | 184.1 | 215 | 128 | 117 | 32 | 78 | 111 | 5.71 | 1.59 | |
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