2021 Pac-12 Conference Leaders Fumbles Lost - Games vs. FBS Teams With Non-Winning Record Only through 01/10/2022
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Utah | 4 | 4 | 1 | 25.00 |
| 2 | Oregon | 5 | 6 | 2 | 33.33 |
| 3 | Arizona | 4 | 2 | 1 | 50.00 |
| 3 | Colorado | 4 | 2 | 1 | 50.00 |
| 3 | California | 6 | 4 | 2 | 50.00 |
| 3 | UCLA | 8 | 4 | 2 | 50.00 |
| 3 | Washington State | 5 | 4 | 2 | 50.00 |
| 3 | Washington | 5 | 8 | 4 | 50.00 |
| 9 | Arizona State | 6 | 5 | 3 | 60.00 |
| 10 | Oregon State | 6 | 4 | 3 | 75.00 |
| 11 | Stanford | 4 | 1 | 1 | 100.00 |
| 11 | USC | 5 | 4 | 4 | 100.00 |