2018 Mountain West Conference Leaders Passing Defense - Games Lost Only through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Fresno State | 2 | 55 | 40 | 72.7 | 444 | 8.1 | 1 | 1 | 142.90 | 27.5 | 222.0 |
| 2 | Boise State | 3 | 74 | 44 | 59.5 | 529 | 7.1 | 2 | 0 | 128.43 | 24.7 | 176.3 |
| 3 | Utah State | 2 | 65 | 46 | 70.8 | 597 | 9.2 | 3 | 1 | 160.07 | 32.5 | 298.5 |
| 4 | Nevada | 5 | 148 | 103 | 69.6 | 1223 | 8.3 | 14 | 3 | 166.18 | 29.6 | 244.6 |
| 5 | Hawai'i | 6 | 158 | 109 | 69.0 | 1425 | 9.0 | 10 | 2 | 163.11 | 26.3 | 237.5 |
| 6 | San Diego State | 6 | 190 | 116 | 61.1 | 1729 | 9.1 | 12 | 3 | 155.17 | 31.7 | 288.2 |
| 7 | Air Force | 7 | 206 | 132 | 64.1 | 2014 | 9.8 | 17 | 2 | 171.50 | 29.4 | 287.7 |
| 8 | Colorado State | 9 | 219 | 151 | 68.9 | 2238 | 10.2 | 23 | 3 | 186.71 | 24.3 | 248.7 |
| 9 | Wyoming | 6 | 234 | 153 | 65.4 | 1550 | 6.6 | 13 | 3 | 136.80 | 39.0 | 258.3 |
| 9 | New Mexico | 9 | 249 | 153 | 61.4 | 2378 | 9.6 | 19 | 2 | 165.24 | 27.7 | 264.2 |
| 11 | UNLV | 8 | 233 | 154 | 66.1 | 2276 | 9.8 | 23 | 4 | 177.28 | 29.1 | 284.5 |
| 12 | San Jose State | 11 | 368 | 224 | 60.9 | 3020 | 8.2 | 27 | 10 | 148.59 | 33.5 | 274.5 |