2018 Mountain West Conference Leaders Opponent Penalties - Games Lost Only through 01/07/2019
| Name | G | Pen. | Yards | Pen./G | Yards/G | |
|---|---|---|---|---|---|---|
| 1 | Hawai'i | 6 | 45 | 453 | 7.5 | 75.5 |
| 2 | Utah State | 2 | 16 | 131 | 8.0 | 65.5 |
| 3 | Wyoming | 6 | 40 | 347 | 6.7 | 57.8 |
| 4 | Nevada | 5 | 30 | 287 | 6.0 | 57.4 |
| 5 | Air Force | 7 | 45 | 399 | 6.4 | 57.0 |
| 6 | Colorado State | 9 | 58 | 509 | 6.4 | 56.6 |
| 7 | San Jose State | 11 | 72 | 586 | 6.5 | 53.3 |
| 8 | UNLV | 8 | 46 | 407 | 5.8 | 50.9 |
| 9 | Boise State | 3 | 18 | 130 | 6.0 | 43.3 |
| 10 | New Mexico | 9 | 50 | 380 | 5.6 | 42.2 |
| 11 | San Diego State | 6 | 22 | 236 | 3.7 | 39.3 |
| 12 | Fresno State | 2 | 7 | 75 | 3.5 | 37.5 |