2015 Pac-12 Conference Leaders Fumbles Lost - Games vs. Ranked Teams Only (AP Poll) through 01/11/2016
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Arizona | 2 | 0 | 0 | 0 |
| 1 | UCLA | 2 | 1 | 0 | 0.00 |
| 1 | Utah | 2 | 1 | 0 | 0.00 |
| 4 | California | 3 | 2 | 1 | 50.00 |
| 4 | Arizona State | 2 | 4 | 1 | 25.00 |
| 6 | Oregon State | 4 | 3 | 2 | 66.67 |
| 6 | Washington State | 2 | 3 | 2 | 66.67 |
| 6 | USC | 6 | 5 | 2 | 40.00 |
| 9 | Colorado | 3 | 5 | 3 | 60.00 |
| 9 | Stanford | 4 | 5 | 3 | 60.00 |
| 9 | Washington | 3 | 5 | 3 | 60.00 |
| 9 | Oregon | 4 | 9 | 3 | 33.33 |