2017 Mountain West Conference Leaders Fumbles Lost - Games in August/September Only through 01/08/2018
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | Hawai'i | 5 | 5 | 1 | 20.00 |
| 2 | San Diego State | 5 | 3 | 2 | 66.67 |
| 2 | Wyoming | 5 | 7 | 2 | 28.57 |
| 2 | Fresno State | 4 | 8 | 2 | 25.00 |
| 2 | Air Force | 4 | 8 | 2 | 25.00 |
| 6 | UNLV | 4 | 5 | 3 | 60.00 |
| 6 | Colorado State | 5 | 6 | 3 | 50.00 |
| 6 | Utah State | 5 | 6 | 3 | 50.00 |
| 9 | Boise State | 4 | 5 | 4 | 80.00 |
| 9 | Nevada | 5 | 11 | 4 | 36.36 |
| 11 | New Mexico | 5 | 10 | 7 | 70.00 |
| 12 | San Jose State | 6 | 18 | 11 | 61.11 |