2018 Mountain West Conference Leaders Passing Defense - Games in October Only through 01/07/2019
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | San Diego State | 4 | 141 | 80 | 56.7 | 708 | 5.0 | 2 | 5 | 96.51 | 35.3 | 177.0 |
| 2 | Fresno State | 4 | 142 | 69 | 48.6 | 730 | 5.1 | 3 | 6 | 90.29 | 35.5 | 182.5 |
| 3 | Wyoming | 4 | 143 | 87 | 60.8 | 821 | 5.7 | 4 | 4 | 112.70 | 35.8 | 205.3 |
| 4 | Utah State | 4 | 146 | 76 | 52.1 | 892 | 6.1 | 7 | 7 | 109.61 | 36.5 | 223.0 |
| 5 | San Jose State | 4 | 95 | 52 | 54.7 | 699 | 7.4 | 9 | 5 | 137.28 | 23.8 | 174.8 |
| 6 | Nevada | 4 | 145 | 87 | 60.0 | 1082 | 7.5 | 10 | 3 | 141.30 | 36.3 | 270.5 |
| 7 | Hawai'i | 4 | 111 | 74 | 66.7 | 890 | 8.0 | 8 | 1 | 156.00 | 27.8 | 222.5 |
| 8 | New Mexico | 4 | 149 | 89 | 59.7 | 1230 | 8.3 | 10 | 1 | 149.88 | 37.3 | 307.5 |
| 9 | Colorado State | 4 | 100 | 60 | 60.0 | 840 | 8.4 | 11 | 2 | 162.86 | 25.0 | 210.0 |
| 9 | Air Force | 4 | 111 | 60 | 54.1 | 932 | 8.4 | 9 | 2 | 147.74 | 27.8 | 233.0 |
| 11 | Boise State | 4 | 117 | 74 | 63.2 | 1032 | 8.8 | 8 | 3 | 154.79 | 29.3 | 258.0 |
| 12 | UNLV | 4 | 100 | 70 | 70.0 | 1193 | 11.9 | 14 | 1 | 214.41 | 25.0 | 298.3 |