2021 Mountain West Conference Leaders Passing Defense - Games vs. Ranked Teams Only (AP Poll) through 01/10/2022
| Name | G | Att | Comp | Pct. | Yards | Yards/Att | TD | Int | Rating | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Wyoming | 1 | 42 | 19 | 45.2 | 181 | 4.3 | 2 | 1 | 92.39 | 42.0 | 181.0 |
| 2 | Fresno State | 2 | 62 | 32 | 51.6 | 419 | 6.8 | 2 | 2 | 112.58 | 31.0 | 209.5 |
| 3 | Boise State | 4 | 117 | 61 | 52.1 | 874 | 7.5 | 2 | 3 | 115.40 | 29.3 | 218.5 |
| 4 | San Jose State | 2 | 64 | 35 | 54.7 | 433 | 6.8 | 6 | 1 | 139.33 | 32.0 | 216.5 |
| 5 | New Mexico | 2 | 50 | 30 | 60.0 | 457 | 9.1 | 5 | 0 | 169.78 | 25.0 | 228.5 |
| 6 | Colorado State | 2 | 53 | 32 | 60.4 | 457 | 8.6 | 4 | 2 | 150.17 | 26.5 | 228.5 |
| 7 | San Diego State | 2 | 101 | 62 | 61.4 | 575 | 5.7 | 7 | 2 | 128.12 | 50.5 | 287.5 |
| 8 | Nevada | 1 | 34 | 21 | 61.8 | 176 | 5.2 | 1 | 0 | 114.96 | 34.0 | 176.0 |
| 9 | Utah State | 2 | 58 | 37 | 63.8 | 412 | 7.1 | 2 | 0 | 134.84 | 29.0 | 206.0 |
| 10 | Air Force | 2 | 63 | 42 | 66.7 | 520 | 8.3 | 5 | 1 | 159.02 | 31.5 | 260.0 |
| 11 | UNLV | 2 | 57 | 39 | 68.4 | 490 | 8.6 | 5 | 2 | 162.56 | 28.5 | 245.0 |
| 12 | Hawai'i | 2 | 48 | 34 | 70.8 | 505 | 10.5 | 4 | 0 | 186.71 | 24.0 | 252.5 |