| Year | Team | G | GS | W | L | SV | CG | SHO | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1998 | 16 | 14 | 5 | 4 | 0 | 0 | 0 | 83 | 42 | 19 | 11 | 0 | 44 | 136 | 1.19 | 1.04 | |
| 1999 | Orioles | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 11 | 17 | 9 | 9 | 4 | 13 | 12 | 7.36 | 2.73 |
| 1999 | 8 | 8 | 3 | 2 | 0 | 0 | 0 | 51.2 | 34 | 19 | 15 | 5 | 14 | 58 | 2.61 | .930 | |
| 2000 | 19 | 14 | 5 | 7 | 1 | 2 | 0 | 74 | 74 | 56 | 50 | 9 | 49 | 66 | 6.08 | 1.66 | |
| 2002 | 22 | 22 | 4 | 10 | 0 | 0 | 0 | 109.1 | 136 | 84 | 77 | 12 | 48 | 105 | 6.34 | 1.68 | |
| 2003 | Orioles | 2 | 2 | 1 | 0 | 0 | 0 | 0 | 10 | 7 | 2 | 2 | 1 | 5 | 8 | 1.80 | 1.20 |
| 2003 | 14 | 14 | 5 | 2 | 0 | 1 | 1 | 72.1 | 56 | 27 | 25 | 4 | 23 | 73 | 3.11 | 1.09 | |
| 2004 | Orioles | 14 | 13 | 3 | 4 | 0 | 0 | 0 | 64 | 60 | 43 | 40 | 11 | 44 | 60 | 5.63 | 1.63 |
| 2004 | 10 | 10 | 1 | 2 | 0 | 0 | 0 | 42 | 26 | 9 | 8 | 3 | 23 | 51 | 1.71 | 1.17 | |
| 2005 | Rangers | 7 | 0 | 1 | 0 | 0 | 0 | 0 | 12.2 | 16 | 14 | 14 | 2 | 10 | 4 | 9.95 | 2.05 |
| 2005 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .200 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | |
| 2007 | 9 | 0 | 0 | 1 | 2 | 0 | 0 | 18.1 | 12 | 6 | 3 | 0 | 11 | 29 | 1.47 | 1.25 | |
| 2008 | 25 | 0 | 2 | 1 | 1 | 0 | 0 | 40.2 | 37 | 13 | 13 | 5 | 24 | 55 | 2.88 | 1.50 | |
| Career Total | 26 | 18 | 5 | 4 | 0 | 0 | 0 | 97.2 | 100 | 68 | 65 | 18 | 72 | 84 | 5.99 | 1.76 | |
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