| 09/01/05 | at | Houston | 38-24 |
| 09/10/05 | hosting | Montana | 47-14 |
| 09/17/05 | hosting | Fresno State | 37-34 |
| 09/24/05 | hosting | Southern Cal | 13-45 |
| 10/01/05 | at | Stanford | 44-20 |
| 10/08/05 | at | Arizona State | 31-17 |
| 10/15/05 | hosting | Washington | 45-21 |
| 10/22/05 | at | Arizona | 28-21 |
| 11/05/05 | hosting | California | 27-20 OT |
| 11/12/05 | at | Washington State | 34-31 |
| 11/19/05 | hosting | Oregon State | 56-14 |
| 12/29/05 | vs. | Oklahoma | 0.5415249736256013 |