Regular season
| Year | Team | Games | Car | Rush Yds | Rush TD | 1st Down | Y/C |
|---|---|---|---|---|---|---|---|
| 2005 | DAL | 13 | 138 | 538 | 5 | 28 | 3.9 |
| 2006 | DAL | 16 | 136 | 654 | 14 | 46 | 4.8 |
| 2007 | DAL | 16 | 203 | 973 | 10 | 48 | 4.8 |
| 2008 | DAL | 15 | 238 | 885 | 7 | 57 | 3.7 |
| 2009 | DAL | 15 | 214 | 932 | 7 | 58 | 4.4 |
| 2010 | DAL | 13 | 113 | 374 | 4 | 30 | 3.3 |
| 2011 | CHI | 11 | 114 | 422 | 6 | 26 | 3.7 |