2017 Pac-12 Conference Leaders Fumbles Lost - Games in October Only through 01/08/2018
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Arizona State | 3 | 2 | 0 | 0.00 |
| 2 | Stanford | 3 | 3 | 1 | 33.33 |
| 2 | Utah | 4 | 5 | 1 | 20.00 |
| 2 | California | 4 | 6 | 1 | 16.67 |
| 5 | UCLA | 3 | 3 | 2 | 66.67 |
| 5 | Colorado | 4 | 5 | 2 | 40.00 |
| 5 | Washington | 3 | 6 | 2 | 33.33 |
| 8 | Arizona | 4 | 3 | 3 | 100.00 |
| 9 | Oregon State | 3 | 4 | 4 | 100.00 |
| 9 | Oregon | 4 | 7 | 4 | 57.14 |
| 11 | Washington State | 4 | 10 | 6 | 60.00 |
| 12 | USC | 4 | 10 | 8 | 80.00 |