2017 Pac-12 Conference Leaders Fumbles Lost - Games vs. Conference Teams Only through 01/08/2018
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Arizona State | 9 | 6 | 3 | 50.00 |
| 1 | Colorado | 9 | 9 | 3 | 33.33 |
| 1 | Washington | 9 | 11 | 3 | 27.27 |
| 1 | Stanford | 10 | 14 | 3 | 21.43 |
| 5 | Arizona | 9 | 8 | 6 | 75.00 |
| 5 | Oregon | 9 | 14 | 6 | 42.86 |
| 5 | Utah | 9 | 16 | 6 | 37.50 |
| 8 | UCLA | 9 | 12 | 7 | 58.33 |
| 8 | Washington State | 9 | 13 | 7 | 53.85 |
| 8 | California | 9 | 15 | 7 | 46.67 |
| 11 | USC | 10 | 15 | 9 | 60.00 |
| 12 | Oregon State | 9 | 14 | 10 | 71.43 |