2021 Mountain West Conference Leaders Fumbles Lost - Games vs. Unranked Teams Only (AP Poll) through 01/10/2022
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Nevada | 12 | 8 | 2 | 25.00 |
| 2 | Boise State | 8 | 11 | 4 | 36.36 |
| 2 | Air Force | 11 | 15 | 4 | 26.67 |
| 4 | Colorado State | 10 | 13 | 6 | 46.15 |
| 4 | San Diego State | 12 | 14 | 6 | 42.86 |
| 4 | Wyoming | 12 | 14 | 6 | 42.86 |
| 7 | UNLV | 10 | 9 | 8 | 88.89 |
| 7 | Fresno State | 11 | 11 | 8 | 72.73 |
| 7 | Utah State | 12 | 13 | 8 | 61.54 |
| 10 | New Mexico | 10 | 15 | 9 | 60.00 |
| 11 | Hawai'i | 11 | 21 | 11 | 52.38 |
| 12 | San Jose State | 10 | 22 | 12 | 54.55 |