| Year | Team | G | GS | W | L | SV | CG | SHO | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1997 | 9 | 8 | 4 | 3 | 0 | 1 | 0 | 47.1 | 39 | 28 | 19 | 9 | 20 | 50 | 3.61 | 1.25 | |
| 1998 | 17 | 17 | 9 | 4 | 0 | 0 | 0 | 102 | 84 | 43 | 28 | 4 | 30 | 103 | 2.47 | 1.12 | |
| 1999 | White Sox | 4 | 3 | 0 | 2 | 0 | 0 | 0 | 15.2 | 17 | 11 | 11 | 2 | 14 | 11 | 6.32 | 1.98 |
| 1999 | 28 | 28 | 12 | 7 | 0 | 0 | 0 | 164.2 | 138 | 76 | 67 | 19 | 77 | 135 | 3.66 | 1.31 | |
| 2000 | White Sox | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2.2 | 0 | 0 | 0 | 0 | 4 | 1 | 0.00 | 1.50 |
| 2000 | 3 | 3 | 2 | 0 | 0 | 0 | 0 | 15.1 | 11 | 7 | 6 | 1 | 8 | 21 | 3.52 | 1.24 | |
| 2001 | Rangers | 19 | 15 | 4 | 5 | 0 | 0 | 0 | 80.2 | 94 | 65 | 64 | 12 | 37 | 67 | 7.14 | 1.62 |
| 2001 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 6 | 3 | 0 | 0 | 0 | 1 | 2 | 0.00 | .670 | |
| 2002 | Rangers | 15 | 12 | 2 | 5 | 0 | 0 | 0 | 48.1 | 64 | 57 | 54 | 11 | 41 | 48 | 10.06 | 2.17 |
| 2002 | 16 | 16 | 7 | 4 | 0 | 2 | 1 | 106 | 86 | 41 | 37 | 5 | 44 | 106 | 3.14 | 1.23 | |
| 2003 | Indians | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 2.2 | 7 | 7 | 7 | 1 | 2 | 1 | 23.63 | 3.38 |
| 2003 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 0 | 2 | 7 | 0.00 | .400 | |
| 2004 | Reds | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 4.1 | 3 | 4 | 4 | 0 | 8 | 6 | 8.31 | 2.54 |
| 2004 | 41 | 1 | 3 | 3 | 19 | 0 | 0 | 62.1 | 45 | 27 | 20 | 2 | 36 | 58 | 2.89 | 1.30 | |
| Career Total | 47 | 30 | 6 | 12 | 0 | 0 | 0 | 154.1 | 185 | 144 | 140 | 26 | 106 | 134 | 8.16 | 1.89 | |
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