2015 Pac-12 Conference Leaders Fumbles Lost - Games vs. Non-Conference Teams Only through 01/11/2016
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | USC | 4 | 1 | 0 | 0.00 |
| 2 | Stanford | 4 | 3 | 1 | 33.33 |
| 3 | UCLA | 4 | 4 | 0 | 0.00 |
| 3 | Oregon State | 3 | 4 | 2 | 50.00 |
| 3 | Colorado | 4 | 4 | 3 | 75.00 |
| 3 | California | 4 | 4 | 4 | 100.00 |
| 7 | Utah | 4 | 5 | 2 | 40.00 |
| 7 | Arizona | 4 | 5 | 3 | 60.00 |
| 9 | Washington State | 4 | 6 | 2 | 33.33 |
| 10 | Washington | 4 | 7 | 4 | 57.14 |
| 11 | Oregon | 4 | 11 | 3 | 27.27 |
| 11 | Arizona State | 4 | 11 | 4 | 36.36 |