| 09/05/05 | at | New Mexico | 22-24 |
| 09/10/05 | hosting | Idaho | 34-31 |
| 09/17/05 | at | Nevada | 14-22 |
| 09/24/05 | at | Utah State | 24-31 |
| 10/01/05 | at | Wyoming | 17-42 |
| 10/08/05 | hosting | San Diego State | 13-10 |
| 10/15/05 | at | Air Force | 7-42 |
| 10/22/05 | hosting | Utah | 32-42 |
| 11/05/05 | hosting | Brigham Young | 14-55 |
| 11/12/05 | at | TCU | 3-51 |
| 11/19/05 | hosting | Colorado State | 27-31 |