2018 Mountain West Conference Leaders Total Defense - Games in August/September Only through 01/07/2019
| Name | G | Rush Yards | Pass Yards | Plays | Total Yards | Yards/Play | Yards/G | |
|---|---|---|---|---|---|---|---|---|
| 1 | Boise State | 4 | 503 | 786 | 239 | 1289 | 5.39 | 322.3 |
| 2 | San Diego State | 4 | 258 | 1090 | 246 | 1348 | 5.48 | 337.0 |
| 3 | Air Force | 4 | 394 | 1131 | 248 | 1525 | 6.15 | 381.3 |
| 4 | Fresno State | 4 | 490 | 769 | 261 | 1259 | 4.82 | 314.8 |
| 5 | UNLV | 4 | 721 | 842 | 275 | 1563 | 5.68 | 390.8 |
| 6 | New Mexico | 4 | 876 | 1194 | 311 | 2070 | 6.66 | 517.5 |
| 7 | Colorado State | 5 | 1245 | 1290 | 328 | 2535 | 7.73 | 507.0 |
| 8 | Utah State | 4 | 747 | 681 | 332 | 1428 | 4.30 | 357.0 |
| 9 | San Jose State | 4 | 535 | 1516 | 360 | 2051 | 5.70 | 512.8 |
| 10 | Wyoming | 5 | 651 | 1279 | 371 | 1930 | 5.20 | 386.0 |
| 11 | Nevada | 5 | 770 | 1296 | 387 | 2066 | 5.34 | 413.2 |
| 12 | Hawai'i | 6 | 955 | 1676 | 425 | 2631 | 6.19 | 438.5 |