| Year | Team | G | GS | W | L | SV | CG | SHO | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1993 | 12 | 12 | 1 | 5 | 0 | 0 | 0 | 63.1 | 58 | 39 | 34 | 5 | 39 | 61 | 4.83 | 1.53 | |
| 1994 | 9 | 9 | 4 | 2 | 0 | 1 | 0 | 51 | 52 | 39 | 29 | 7 | 30 | 37 | 5.12 | 1.61 | |
| 1995 | 14 | 13 | 5 | 6 | 0 | 1 | 1 | 74.1 | 89 | 51 | 44 | 4 | 39 | 62 | 5.33 | 1.72 | |
| 1997 | 24 | 22 | 7 | 9 | 0 | 2 | 2 | 143 | 141 | 65 | 55 | 11 | 62 | 98 | 3.46 | 1.42 | |
| 1998 | 17 | 17 | 5 | 6 | 0 | 1 | 1 | 101.1 | 127 | 81 | 67 | 11 | 31 | 70 | 5.95 | 1.56 | |
| 1999 | 22 | 3 | 4 | 1 | 1 | 0 | 0 | 20.2 | 40 | 13 | 11 | 1 | 23 | 35 | 4.79 | 3.05 | |
| 2000 | White Sox | 83 | 0 | 6 | 3 | 1 | 0 | 0 | 61.1 | 50 | 22 | 20 | 4 | 29 | 51 | 2.93 | 1.29 |
| 2001 | White Sox | 33 | 0 | 2 | 1 | 0 | 0 | 0 | 22.1 | 21 | 19 | 19 | 4 | 9 | 16 | 7.66 | 1.34 |
| 2002 | White Sox | 50 | 0 | 2 | 1 | 0 | 0 | 0 | 31.2 | 26 | 12 | 12 | 3 | 19 | 22 | 3.41 | 1.42 |
| 2002 | 10 | 2 | 1 | 0 | 0 | 0 | 0 | 12 | 13 | 3 | 3 | 0 | 5 | 9 | 2.25 | 1.50 | |
| 2003 | White Sox | 43 | 0 | 0 | 0 | 0 | 0 | 0 | 36 | 17 | 13 | 11 | 1 | 25 | 33 | 2.75 | 1.17 |
| 2003 | 3 | 0 | 0 | 1 | 0 | 0 | 0 | 3.1 | 6 | 3 | 2 | 1 | 0 | 4 | 5.40 | 1.80 | |
| 2004 | White Sox | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 1 | 1 | 0.00 | 1.50 |
| 2004 | 27 | 0 | 1 | 0 | 2 | 0 | 0 | 27.2 | 21 | 9 | 9 | 1 | 12 | 29 | 2.93 | 1.19 | |
| 2005 | Dodgers | 45 | 0 | 1 | 1 | 0 | 0 | 0 | 23.2 | 20 | 12 | 12 | 2 | 14 | 22 | 4.56 | 1.44 |
| 2006 | 11 | 0 | 1 | 1 | 0 | 0 | 0 | 8.2 | 12 | 8 | 8 | 0 | 4 | 10 | 8.31 | 1.85 | |
| Career Total | 257 | 0 | 11 | 6 | 1 | 0 | 0 | 177 | 136 | 78 | 74 | 14 | 97 | 145 | 3.76 | 1.32 | |
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