2018 Mountain West Conference Leaders Fumbles Lost - Games vs. Ranked Teams Only (AP Poll) through 01/07/2019
| Name | G | Fumbles | Fumbles Lost | Fumble Lost % | |
|---|---|---|---|---|---|
| 1 | UNLV | 2 | 1 | 0 | 0.00 |
| 2 | Boise State | 3 | 1 | 1 | 100.00 |
| 2 | Hawai'i | 3 | 1 | 1 | 100.00 |
| 2 | Utah State | 1 | 1 | 1 | 100.00 |
| 2 | Air Force | 3 | 2 | 1 | 50.00 |
| 6 | San Diego State | 2 | 2 | 2 | 100.00 |
| 6 | Fresno State | 2 | 3 | 2 | 66.67 |
| 6 | Wyoming | 4 | 3 | 2 | 66.67 |
| 6 | Nevada | 2 | 4 | 2 | 50.00 |
| 10 | New Mexico | 3 | 4 | 3 | 75.00 |
| 11 | Colorado State | 3 | 7 | 4 | 57.14 |
| 12 | San Jose State | 4 | 6 | 5 | 83.33 |