| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 1 | 40 | 0.000 | (0,0) | 0.000 | --bye-- |
| 2 | 412 | -0.167 | (0,1) | 0.833 | San Diego St | 28 to 36 | 21 | 134 |
| 3 | 296 | 1.238 | (0,2) | 2.238 | Utah St | 28 to 78 | 198 | 103 |
| 4 | 377 | -0.038 | (0,3) | 0.962 | Northern Iowa | 17 to 41 | 284 | 131 |
| 5 | 357 | 0.061 | (1,3) | 0.561 | Northern Colorado | 35 to 21 | 443 | 401 |
| 6 | 311 | 0.195 | (1,4) | 0.795 | Montana | 20 to 28 | 133 | 43 |
| 7 | 274 | 0.382 | (1,4) | 0.982 | --bye-- |
| 8 | 203 | 0.655 | (2,4) | 0.988 | Eastern Washington | 42 to 41 | 213 | 211 |
| 9 | 164 | 0.751 | (3,4) | 0.894 | Portland St | 38 to 24 | 176 | 191 |
| 10 | 187 | 0.708 | (3,5) | 0.958 | Sacramento St | 16 to 51 | 95 | 122 |
| 11 | 228 | 0.568 | (3,6) | 0.902 | Weber St | 21 to 33 | 161 | 138 |
| 12 | 237 | 0.476 | (3,7) | 0.876 | UC-Davis | 14 to 21 | 134 | 119 |
| 13 | 254 | 0.415 | (3,8) | 0.870 | Idaho | 21 to 63 | 97 | 95 |
| 14 | 239 | 0.518 | (3,8) | 0.972 | --bye-- |
| 15 | 241 | 0.445 | (3,8) | 0.900 | --bye-- |
| 16 | 241 | 0.433 | (3,8) | 0.888 | --bye-- |
| 17 | 243 | 0.429 | (3,8) | 0.884 | --bye-- |
| 18 | 246 | 0.409 | (3,8) | 0.864 | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |