| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 0 | 9 | 0.000 | (0,0) | 0.000 | --bye-- |
| 1 | 518 | -0.500 | (0,1) | 0.500 | Michigan | 17 to 34 | 7 | 14 |
| 2 | 651 | -1.828 | (1,1) | -1.828 | Idaho St | 32 to 22 | 684 | 187 |
| 3 | 309 | 0.182 | (2,1) | -0.151 | UCLA | 35 to 10 | 451 | 73 |
| 4 | 152 | 0.827 | (2,1) | 0.494 | --bye-- |
| 5 | 57 | 1.596 | (3,1) | 1.096 | New Mexico St | 38 to 20 | 101 | 175 |
| 6 | 91 | 1.284 | (3,2) | 1.084 | San Jose St | 28 to 35 | 160 | 128 |
| 7 | 107 | 1.191 | (3,3) | 1.191 | Boise St | 25 to 41 | 45 | 52 |
| 8 | 100 | 1.216 | (4,3) | 1.073 | Nevada | 24 to 22 | 241 | 216 |
| 9 | 79 | 1.380 | (5,3) | 1.130 | Utah St | 33 to 14 | 99 | 92 |
| 10 | 59 | 1.565 | (6,3) | 1.231 | UNLV | 40 to 35 | 57 | 57 |
| 11 | | | | | --bye-- |
| 12 | | | | | Colorado St | | | 152 |
| 13 | | | | | Air Force | | | 163 |
| 14 | | | | | San Diego St | | | 48 |
| 15 | | | | | --bye-- |
| 16 | | | | | --bye-- |
| 17 | | | | | --bye-- |
| 18 | | | | | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |