2017 Pac-12 Conference Leaders Fumbles Lost - Games in August/September Only through 01/08/2018
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Washington | 5 | 3 | 2 | 66.67 |
| 1 | USC | 5 | 4 | 2 | 50.00 |
| 1 | Colorado | 5 | 8 | 2 | 25.00 |
| 4 | Stanford | 5 | 6 | 3 | 50.00 |
| 4 | Washington State | 5 | 6 | 3 | 50.00 |
| 4 | Arizona State | 5 | 8 | 3 | 37.50 |
| 7 | Arizona | 4 | 5 | 4 | 80.00 |
| 8 | California | 5 | 9 | 5 | 55.56 |
| 9 | UCLA | 5 | 9 | 6 | 66.67 |
| 9 | Utah | 4 | 9 | 6 | 66.67 |
| 9 | Oregon | 5 | 10 | 6 | 60.00 |
| 12 | Oregon State | 5 | 11 | 10 | 90.91 |