2017 Pac-12 Conference Leaders Fumbles Lost - Games vs. Non-Conference Teams Only through 01/08/2018
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | California | 3 | 4 | 1 | 25.00 |
| 1 | Stanford | 4 | 4 | 1 | 25.00 |
| 1 | Arizona | 4 | 4 | 3 | 75.00 |
| 1 | Washington | 4 | 4 | 3 | 75.00 |
| 5 | Colorado | 3 | 5 | 2 | 40.00 |
| 6 | UCLA | 4 | 6 | 5 | 83.33 |
| 6 | USC | 4 | 6 | 5 | 83.33 |
| 8 | Arizona State | 4 | 7 | 3 | 42.86 |
| 8 | Oregon State | 3 | 7 | 6 | 85.71 |
| 10 | Washington State | 4 | 8 | 4 | 50.00 |
| 11 | Utah | 4 | 9 | 6 | 66.67 |
| 11 | Oregon | 4 | 9 | 7 | 77.78 |