2021 Mountain West Conference Leaders Fumbles Lost - Games vs. Conference Teams Only through 01/10/2022
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Nevada | 8 | 5 | 2 | 40.00 |
| 2 | Boise State | 8 | 8 | 3 | 37.50 |
| 3 | Fresno State | 8 | 9 | 6 | 66.67 |
| 3 | UNLV | 8 | 9 | 6 | 66.67 |
| 3 | Hawai'i | 8 | 9 | 7 | 77.78 |
| 6 | Colorado State | 8 | 10 | 5 | 50.00 |
| 6 | Wyoming | 8 | 10 | 5 | 50.00 |
| 8 | Utah State | 9 | 11 | 6 | 54.55 |
| 9 | San Diego State | 9 | 12 | 6 | 50.00 |
| 10 | Air Force | 8 | 13 | 6 | 46.15 |
| 11 | New Mexico | 8 | 16 | 10 | 62.50 |
| 12 | San Jose State | 8 | 20 | 10 | 50.00 |