2021 Pac-12 Conference Leaders Fumbles Lost - Games vs. Non-Conference Teams Only through 01/10/2022
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | California | 3 | 1 | 0 | 0.00 |
| 2 | Oregon | 4 | 2 | 1 | 50.00 |
| 2 | UCLA | 3 | 2 | 2 | 100.00 |
| 4 | Arizona | 3 | 3 | 1 | 33.33 |
| 4 | Colorado | 3 | 3 | 2 | 66.67 |
| 4 | USC | 3 | 3 | 2 | 66.67 |
| 4 | Washington | 3 | 3 | 2 | 66.67 |
| 8 | Oregon State | 4 | 4 | 2 | 50.00 |
| 8 | Stanford | 3 | 4 | 2 | 50.00 |
| 10 | Washington State | 4 | 5 | 2 | 40.00 |
| 10 | Utah | 4 | 5 | 3 | 60.00 |
| 12 | Arizona State | 4 | 7 | 4 | 57.14 |