| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 0 | 694 | -0.500 | (0,1) | 0.500 | Iowa St | 21 to 24 | 1 | 38 |
| 1 | 512 | -0.167 | (1,1) | -0.167 | North Dakota | 38 to 35 | 698 | 107 |
| 2 | 647 | -1.521 | (1,2) | -1.187 | Army | 21 to 24 | 612 | 77 |
| 3 | 249 | 0.470 | (1,3) | 0.970 | Arizona | 17 to 23 | 64 | 44 |
| 4 | 153 | 0.827 | (1,3) | 1.327 | --bye-- |
| 5 | 102 | 1.194 | (2,3) | 1.394 | UCF | 34 to 20 | 118 | 106 |
| 6 | 121 | 1.059 | (2,4) | 1.392 | Baylor | 34 to 35 | 56 | 62 |
| 7 | 92 | 1.350 | (3,4) | 1.492 | TCU | 41 to 28 | 41 | 29 |
| 8 | 79 | 1.373 | (3,4) | 1.515 | --bye-- |
| 9 | 64 | 1.506 | (4,4) | 1.506 | Kansas | 42 to 17 | 89 | 74 |
| 10 | 66 | 1.477 | (4,5) | 1.588 | Texas Tech | 20 to 43 | 20 | 20 |
| 11 | | | | | --bye-- |
| 12 | | | | | Oklahoma St | | | 160 |
| 13 | | | | | Utah | | | 12 |
| 14 | | | | | Colorado | | | 64 |
| 15 | | | | | --bye-- |
| 16 | | | | | --bye-- |
| 17 | | | | | --bye-- |
| 18 | | | | | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |