2021 Mountain West Conference Leaders Fumbles Lost - Games vs. FBS Teams With Winning Record Only through 01/10/2022
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Nevada | 6 | 4 | 1 | 25.00 |
| 2 | Boise State | 10 | 13 | 5 | 38.46 |
| 3 | Air Force | 6 | 13 | 6 | 46.15 |
| 4 | Wyoming | 5 | 8 | 4 | 50.00 |
| 5 | San Jose State | 6 | 13 | 7 | 53.85 |
| 6 | Colorado State | 7 | 11 | 6 | 54.55 |
| 7 | Hawai'i | 7 | 7 | 4 | 57.14 |
| 7 | San Diego State | 7 | 7 | 4 | 57.14 |
| 9 | Fresno State | 7 | 12 | 7 | 58.33 |
| 9 | New Mexico | 8 | 12 | 7 | 58.33 |
| 11 | Utah State | 7 | 8 | 5 | 62.50 |
| 12 | UNLV | 8 | 6 | 4 | 66.67 |