| Year | Tm | G | W | L | Sv | IP | K | ERA | WHIP | R$ | T15 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2001 | HOU | 28 | 14 | 3 | 0 | 142 | 144 | 2.73 | 1.06 | $21 | |
| 2002 | HOU | 35 | 19 | 9 | 0 | 233 | 208 | 3.01 | 1.19 | $25 | T15 |
| 2003 | HOU | 21 | 10 | 5 | 0 | 127 | 108 | 2.97 | 1.14 | $13 | |
| 2004 | HOU | 36 | 20 | 10 | 0 | 237 | 206 | 3.49 | 1.25 | $25 | T15 |
| 2005 | HOU | 35 | 20 | 12 | 0 | 242 | 184 | 2.94 | 1.20 | $26 | T15 |
| 2006 | HOU | 33 | 15 | 8 | 0 | 221 | 166 | 2.98 | 1.17 | $26 | T15 |
| 2007 | HOU | 33 | 14 | 7 | 0 | 212 | 154 | 3.18 | 1.33 | $19 | |
| 2008 | HOU | 32 | 17 | 10 | 0 | 209 | 165 | 3.54 | 1.18 | $21 | |
| 2009 | HOU | 30 | 8 | 6 | 0 | 181 | 138 | 4.12 | 1.24 | $10 | |
| 2010 | HOU-PHI | 33 | 13 | 13 | 0 | 212 | 193 | 2.76 | 1.03 | $25 | T15 |
| 2011 | PHI | 23 | 9 | 10 | 0 | 139 | 93 | 3.69 | 1.34 | $4 | |
| 2012 | TEX | 17 | 4 | 3 | 0 | 59 | 59 | 5.80 | 1.53 | -$8 | |
| 2013 | COL | 9 | 0 | 6 | 0 | 32 | 34 | 8.63 | 1.79 | -$12 |