2018 Pac-12 Conference Leaders Fumbles Lost - Games in November Only through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Stanford | 3 | 1 | 0 | 0.00 |
| 2 | California | 3 | 3 | 1 | 33.33 |
| 3 | Washington State | 4 | 4 | 2 | 50.00 |
| 3 | UCLA | 4 | 4 | 3 | 75.00 |
| 5 | Washington | 4 | 5 | 2 | 40.00 |
| 6 | Utah | 5 | 6 | 1 | 16.67 |
| 6 | Oregon State | 4 | 6 | 3 | 50.00 |
| 6 | Oregon | 4 | 6 | 3 | 50.00 |
| 9 | Arizona State | 4 | 8 | 1 | 12.50 |
| 9 | Arizona | 3 | 8 | 5 | 62.50 |
| 11 | USC | 4 | 9 | 4 | 44.44 |
| 12 | Colorado | 4 | 11 | 6 | 54.55 |