2018 Mountain West Conference Leaders Total Defense - Games vs. FBS Teams With Non-Winning Record Only through 01/07/2019
| Name | G | Rush Yards | Pass Yards | Plays | Total Yards | Yards/Play | Yards/G | |
|---|---|---|---|---|---|---|---|---|
| 1 | San Diego State | 4 | 576 | 573 | 263 | 1149 | 4.37 | 287.3 |
| 2 | Wyoming | 5 | 493 | 737 | 304 | 1230 | 4.05 | 246.0 |
| 3 | San Jose State | 3 | 810 | 610 | 233 | 1420 | 6.09 | 473.3 |
| 4 | Fresno State | 5 | 628 | 812 | 323 | 1440 | 4.46 | 288.0 |
| 5 | Boise State | 5 | 679 | 1003 | 291 | 1682 | 5.78 | 336.4 |
| 6 | Nevada | 6 | 763 | 1364 | 438 | 2127 | 4.86 | 354.5 |
| 7 | Air Force | 6 | 616 | 1602 | 361 | 2218 | 6.14 | 369.7 |
| 8 | UNLV | 5 | 1248 | 1221 | 360 | 2469 | 6.86 | 493.8 |
| 9 | Colorado State | 6 | 1423 | 1081 | 421 | 2504 | 5.95 | 417.3 |
| 10 | Hawai'i | 6 | 1006 | 1546 | 425 | 2552 | 6.00 | 425.3 |
| 11 | New Mexico | 6 | 1214 | 1341 | 456 | 2555 | 5.60 | 425.8 |
| 12 | Utah State | 7 | 1141 | 1540 | 559 | 2681 | 4.80 | 383.0 |