2021 Mountain West Conference Leaders Fumbles Lost - Games vs. Ranked Teams Only (AP Poll) through 01/10/2022
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Nevada | 1 | 1 | 0 | 0.00 |
| 1 | Wyoming | 1 | 1 | 0 | 0.00 |
| 1 | UNLV | 2 | 2 | 0 | 0.00 |
| 1 | Utah State | 2 | 3 | 0 | 0.00 |
| 5 | Boise State | 4 | 3 | 1 | 33.33 |
| 6 | Colorado State | 2 | 3 | 2 | 66.67 |
| 6 | Hawai'i | 2 | 3 | 2 | 66.67 |
| 6 | Air Force | 2 | 3 | 2 | 66.67 |
| 6 | San Jose State | 2 | 4 | 2 | 50.00 |
| 10 | San Diego State | 2 | 4 | 3 | 75.00 |
| 10 | New Mexico | 2 | 7 | 3 | 42.86 |
| 12 | Fresno State | 2 | 7 | 4 | 57.14 |