2017 Pac-12 Conference Leaders Fumbles Lost - Games vs. Ranked Teams Only (AP Poll) through 01/08/2018
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Colorado | 2 | 3 | 0 | 0.00 |
| 1 | Utah | 3 | 4 | 0 | 0.00 |
| 1 | Stanford | 5 | 8 | 0 | 0.00 |
| 4 | Arizona | 1 | 2 | 1 | 50.00 |
| 4 | Arizona State | 4 | 4 | 1 | 25.00 |
| 6 | Washington | 2 | 3 | 2 | 66.67 |
| 7 | California | 3 | 6 | 3 | 50.00 |
| 7 | Washington State | 5 | 7 | 3 | 42.86 |
| 9 | Oregon | 3 | 7 | 4 | 57.14 |
| 10 | UCLA | 4 | 6 | 5 | 83.33 |
| 11 | Oregon State | 3 | 6 | 6 | 100.00 |
| 11 | USC | 4 | 6 | 6 | 100.00 |