| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 1 | 40 | 0.000 | (0,0) | 0.000 | --bye-- |
| 2 | 424 | -0.500 | (0,1) | 0.500 | Iowa | 14 to 24 | 29 | 16 |
| 3 | 198 | 2.106 | (1,1) | 2.106 | Idaho St | 78 to 28 | 296 | 246 |
| 4 | 161 | 1.004 | (1,2) | 1.337 | Air Force | 21 to 39 | 47 | 54 |
| 5 | 164 | 0.885 | (1,3) | 1.385 | James Madison | 38 to 45 | 29 | 26 |
| 6 | 125 | 1.077 | (2,3) | 1.277 | Connecticut | 34 to 33 | 257 | 185 |
| 7 | 72 | 1.455 | (3,3) | 1.455 | Colorado St | 44 to 24 | 103 | 128 |
| 8 | 68 | 1.459 | (3,4) | 1.602 | Fresno St | 32 to 37 | 40 | 58 |
| 9 | 91 | 1.213 | (3,5) | 1.463 | San Jose St | 21 to 42 | 101 | 67 |
| 10 | 96 | 1.237 | (3,5) | 1.487 | --bye-- |
| 11 | 98 | 1.265 | (4,5) | 1.376 | San Diego St | 32 to 24 | 129 | 134 |
| 12 | 89 | 1.291 | (5,5) | 1.291 | Nevada | 41 to 24 | 161 | 190 |
| 13 | 107 | 1.145 | (5,6) | 1.236 | Boise St | 10 to 45 | 60 | 46 |
| 14 | 91 | 1.289 | (6,6) | 1.289 | New Mexico | 44 to 41 | 138 | 146 |
| 15 | 91 | 1.214 | (6,6) | 1.214 | --bye-- |
| 16 | 90 | 1.208 | (6,6) | 1.208 | --bye-- |
| 17 | 92 | 1.193 | (6,6) | 1.193 | --bye-- |
| 18 | 103 | 1.098 | (6,7) | 1.175 | Georgia St | 22 to 45 | 82 | 82 |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |