2015 Pac-12 Conference Leaders Fumbles Lost - Games vs. Unranked Teams Only (AP Poll) through 01/11/2016
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Stanford | 10 | 7 | 2 | 28.57 |
| 2 | Oregon State | 8 | 7 | 3 | 42.86 |
| 2 | USC | 8 | 7 | 3 | 42.86 |
| 4 | Oregon | 9 | 11 | 4 | 36.36 |
| 5 | UCLA | 11 | 13 | 6 | 46.15 |
| 5 | Colorado | 10 | 15 | 6 | 40.00 |
| 7 | California | 10 | 11 | 8 | 72.73 |
| 7 | Washington | 10 | 13 | 8 | 61.54 |
| 9 | Arizona State | 11 | 22 | 9 | 40.91 |
| 10 | Utah | 11 | 23 | 10 | 43.48 |
| 10 | Arizona | 11 | 25 | 10 | 40.00 |
| 12 | Washington State | 11 | 22 | 11 | 50.00 |