2012 Pac-12 Conference Leaders Fumbles Lost - Games Won Only through 01/07/2013
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Utah | 5 | 6 | 1 | 16.67 |
| 2 | Colorado | 1 | 4 | 2 | 50.00 |
| 3 | Washington State | 3 | 4 | 3 | 75.00 |
| 3 | California | 3 | 7 | 3 | 42.86 |
| 3 | Oregon State | 9 | 13 | 3 | 23.08 |
| 6 | Washington | 7 | 14 | 6 | 42.86 |
| 7 | Stanford | 12 | 18 | 7 | 38.89 |
| 8 | USC | 7 | 13 | 8 | 61.54 |
| 8 | Arizona | 8 | 15 | 8 | 53.33 |
| 10 | Arizona State | 8 | 16 | 9 | 56.25 |
| 11 | Oregon | 12 | 26 | 10 | 38.46 |
| 12 | UCLA | 9 | 18 | 11 | 61.11 |