2021 Pac-12 Conference Leaders Fumbles Lost - Games vs. Ranked Teams Only (AP Poll) through 01/10/2022
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | California | 1 | 0 | 0 | 0 |
| 1 | Arizona | 4 | 1 | 0 | 0.00 |
| 1 | Oregon | 4 | 1 | 0 | 0.00 |
| 1 | Colorado | 2 | 2 | 0 | 0.00 |
| 5 | USC | 3 | 2 | 1 | 50.00 |
| 5 | Washington | 2 | 2 | 1 | 50.00 |
| 5 | UCLA | 2 | 4 | 1 | 25.00 |
| 8 | Oregon State | 3 | 3 | 2 | 66.67 |
| 8 | Washington State | 4 | 4 | 2 | 50.00 |
| 8 | Utah | 5 | 7 | 2 | 28.57 |
| 11 | Arizona State | 2 | 4 | 3 | 75.00 |
| 11 | Stanford | 3 | 5 | 3 | 60.00 |