| Year | Team | G | GS | W | L | SV | CG | SHO | IP | H | R | ER | HR | BB | K | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1995 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 8 | 2 | 2 | 0 | 7 | 10 | 1.80 | 1.50 | |
| 1996 | Orioles | 8 | 1 | 0 | 1 | 0 | 0 | 0 | 16.2 | 18 | 11 | 8 | 2 | 7 | 12 | 4.32 | 1.50 |
| 1996 | 24 | 17 | 8 | 7 | 2 | 1 | 0 | 111.1 | 83 | 42 | 28 | 10 | 40 | 114 | 2.26 | 1.10 | |
| 1997 | Orioles | 6 | 2 | 2 | 1 | 0 | 0 | 0 | 22 | 21 | 15 | 12 | 2 | 8 | 11 | 4.91 | 1.32 |
| 1997 | 27 | 27 | 11 | 10 | 0 | 1 | 1 | 168.1 | 124 | 82 | 73 | 23 | 62 | 160 | 3.90 | 1.10 | |
| 1998 | Blue Jays | 7 | 0 | 1 | 0 | 0 | 0 | 0 | 8.1 | 10 | 9 | 9 | 1 | 8 | 3 | 9.72 | 2.16 |
| 1998 | Orioles | 6 | 4 | 1 | 3 | 0 | 0 | 0 | 19 | 25 | 17 | 17 | 0 | 9 | 8 | 8.05 | 1.79 |
| 1998 | 2 | 2 | 0 | 1 | 0 | 0 | 0 | 4 | 6 | 2 | 2 | 0 | 0 | 7 | 4.50 | 1.50 | |
| 1999 | Blue Jays | 2 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 13.50 | 2.00 |
| 1999 | 27 | 27 | 10 | 8 | 0 | 1 | 1 | 163 | 161 | 84 | 82 | 17 | 53 | 137 | 4.53 | 1.31 | |
| 2000 | 19 | 19 | 7 | 7 | 0 | 1 | 0 | 109 | 115 | 64 | 58 | 9 | 34 | 93 | 4.79 | 1.37 | |
| 2001 | 11 | 11 | 6 | 2 | 0 | 2 | 1 | 71.1 | 64 | 34 | 31 | 10 | 17 | 49 | 3.91 | 1.14 | |
| 2002 | Cardinals | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 4.1 | 4 | 3 | 2 | 1 | 1 | 2 | 4.15 | 1.15 |
| 2002 | Indians | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .100 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| 2002 | 13 | 10 | 4 | 2 | 0 | 1 | 0 | 74.1 | 55 | 20 | 15 | 6 | 12 | 44 | 1.82 | .900 | |
| 2003 | 11 | 11 | 5 | 1 | 0 | 1 | 1 | 76.1 | 57 | 19 | 16 | 3 | 12 | 54 | 1.89 | .900 | |
| 2004 | 16 | 13 | 5 | 3 | 0 | 0 | 0 | 73 | 80 | 50 | 46 | 13 | 30 | 46 | 5.67 | 1.51 | |
| 2005 | 4 | 4 | 0 | 3 | 0 | 0 | 0 | 22 | 33 | 18 | 17 | 6 | 3 | 11 | 6.95 | 1.64 | |
| 2006 | 4 | 4 | 2 | 2 | 0 | 0 | 0 | 23 | 31 | 14 | 13 | 2 | 6 | 14 | 5.09 | 1.61 | |
| Career Total | 32 | 7 | 4 | 6 | 0 | 0 | 0 | 72.2 | 80 | 58 | 51 | 8 | 35 | 38 | 6.32 | 1.58 | |
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