| Year | Team | G | GS | W | L | SV | CG | SHO | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | 12 | 12 | 8 | 2 | 0 | 1 | 1 | 68 | 54 | 30 | 23 | 1 | 32 | 71 | 3.04 | 1.26 | |
| 1998 | 28 | 27 | 11 | 5 | 0 | 1 | 0 | 165 | 122 | 70 | 56 | 7 | 62 | 170 | 3.05 | 1.12 | |
| 1999 | 25 | 24 | 15 | 7 | 0 | 0 | 0 | 153.1 | 108 | 55 | 49 | 8 | 62 | 148 | 2.88 | 1.11 | |
| 2000 | 9 | 9 | 3 | 5 | 0 | 1 | 0 | 53 | 43 | 29 | 28 | 5 | 30 | 52 | 4.75 | 1.38 | |
| 2001 | Astros | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 6 | 5 | 5 | 2 | 1 | 3 | 15.00 | 2.33 |
| 2001 | 42 | 10 | 5 | 9 | 0 | 0 | 0 | 92.1 | 94 | 61 | 49 | 10 | 56 | 94 | 4.78 | 1.62 | |
| 2004 | 8 | 5 | 2 | 3 | 0 | 0 | 0 | 28.2 | 32 | 28 | 26 | 4 | 22 | 26 | 8.16 | 1.88 | |
| 2005 | 12 | 12 | 4 | 5 | 0 | 1 | 0 | 68.2 | 59 | 34 | 29 | 5 | 31 | 64 | 3.80 | 1.31 | |
| Career Total | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 6 | 5 | 5 | 2 | 1 | 3 | 15.00 | 2.33 | |
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