2018 Mountain West Conference Leaders Fumbles Lost - Games vs. Unranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | San Jose State | 8 | 8 | 1 | 12.50 |
| 2 | Colorado State | 9 | 7 | 2 | 28.57 |
| 3 | Boise State | 10 | 15 | 4 | 26.67 |
| 4 | Wyoming | 8 | 12 | 5 | 41.67 |
| 5 | Fresno State | 12 | 13 | 6 | 46.15 |
| 5 | New Mexico | 9 | 15 | 6 | 40.00 |
| 7 | UNLV | 10 | 14 | 7 | 50.00 |
| 8 | Hawai'i | 11 | 19 | 8 | 42.11 |
| 9 | Air Force | 9 | 13 | 9 | 69.23 |
| 9 | Nevada | 11 | 14 | 9 | 64.29 |
| 9 | San Diego State | 11 | 15 | 9 | 60.00 |
| 12 | Utah State | 12 | 17 | 11 | 64.71 |