2021 Mountain West Conference Leaders Rushing Defense - Games in August/September Only through 01/10/2022
| Name | G | Att | Yards | Avg. | TD | Att/G | Yards/G | |
|---|---|---|---|---|---|---|---|---|
| 1 | San Diego State | 4 | 97 | 182 | 1.88 | 0 | 24.25 | 45.50 |
| 2 | New Mexico | 4 | 113 | 305 | 2.70 | 2 | 28.25 | 76.25 |
| 3 | Air Force | 4 | 117 | 400 | 3.42 | 4 | 29.25 | 100.00 |
| 4 | Colorado State | 4 | 131 | 411 | 3.14 | 6 | 32.75 | 102.75 |
| 5 | Wyoming | 4 | 137 | 593 | 4.33 | 8 | 34.25 | 148.25 |
| 6 | UNLV | 4 | 141 | 654 | 4.64 | 7 | 35.25 | 163.50 |
| 7 | Hawai'i | 5 | 179 | 754 | 4.21 | 10 | 35.80 | 150.80 |
| 8 | Fresno State | 5 | 180 | 543 | 3.02 | 7 | 36.00 | 108.60 |
| 9 | San Jose State | 4 | 145 | 545 | 3.76 | 2 | 36.25 | 136.25 |
| 10 | Utah State | 4 | 155 | 799 | 5.15 | 7 | 38.75 | 199.75 |
| 11 | Nevada | 3 | 117 | 563 | 4.81 | 6 | 39.00 | 187.67 |
| 12 | Boise State | 4 | 187 | 840 | 4.49 | 4 | 46.75 | 210.00 |