| Year | Team | W | L | G | IP | ERA | WHIP | K | BB | HR | K/9 | BB/9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | Colorado Rockies | 6 | 10 | 27 | 160.0 | 5.06 | 1.53 | 134 | 87 | 26 | 7.54 | 4.89 |
| 2002 |
| Colorado Rockies |
| 5 |
| 11 |
| 21 |
| 119.1 |
| 5.73 |
| 1.53 |
| 67 |
| 60 |
| 25 |
| 5.05 |
| 4.53 |
| 2003 | Colorado Rockies | 11 | 8 | 23 | 137.0 | 4.60 | 1.33 | 93 | 58 | 12 | 6.11 | 3.81 |
| 2004 | Colorado Rockies | 1 | 9 | 66 | 63.1 | 7.11 | 1.94 | 52 | 52 | 12 | 7.39 | 7.39 |
| 2005 | Colorado Rockies | 1 | 7 | 13 | 72.2 | 4.09 | 1.44 | 39 | 36 | 7 | 4.83 | 4.46 |
| 2005 | New York Yankees | 7 | 3 | 14 | 79.0 | 2.85 | 1.22 | 40 | 30 | 7 | 4.56 | 3.42 |
| 2005 | 8 | 10 | 27 | 151.2 | 3.44 | 1.33 | 79 | 66 | 14 | 4.69 | 3.92 |
| 2006 | New York Yankees | 5 | 3 | 17 | 63.0 | 7.00 | 1.79 | 35 | 36 | 11 | 5.00 | 5.14 |
| 2006 | Pittsburgh Pirates | 2 | 3 | 9 | 46.0 | 5.48 | 1.61 | 27 | 27 | 12 | 5.28 | 5.28 |
| 2006 | 7 | 6 | 26 | 109.0 | 6.36 | 1.72 | 62 | 63 | 23 | 5.12 | 5.20 |
| 2007 | Pittsburgh Pirates | 5 | 4 | 64 | 96.0 | 3.94 | 1.49 | 79 | 48 | 9 | 7.41 | 4.50 |
| 2008 | Houston Astros | 2 | 3 | 15 | 85.2 | 5.04 | 1.51 | 53 | 41 | 16 | 5.57 | 4.31 |
| Career | — | 45 | 61 | 269 | 922.0 | 4.99 | 1.51 | 619 | 475 | 137 | 6.04 | 4.64 |