Regular season and playoffs
| Year | Team | Games | Car | Rush Yds | Rush TD | 1st Down | Y/C |
|---|---|---|---|---|---|---|---|
| 2007 | BUF | 8 | 58 | 300 | 0 | 12 | 5.2 |
| 2008 | BUF | 15 | 129 | 560 | 3 | 33 | 4.3 |
| 2009 | BUF | 16 | 238 | 1062 | 2 | 45 | 4.5 |
| 2010 | BUF | 16 | 222 | 927 | 5 | 45 | 4.2 |
| 2011 | BUF | 10 | 170 | 934 | 6 | 40 | 5.5 |
| 2012 | BUF | 10 | 115 | 437 | 3 | 25 | 3.8 |
| 2013 | BUF | 16 | 206 | 890 | 9 | 55 | 4.3 |
| 2014 | BUF | 14 | 141 | 525 | 2 | 24 | 3.7 |
| 2015 | SEA | 17 | 29 | 111 | 0 | 7 | 3.8 |