| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 0 | 9 | 0.000 | (0,0) | 0.000 | --bye-- |
| 1 | 3 | 1.125 | (1,0) | 0.125 | Hawaii | 40 to 6 | 187 | 65 |
| 2 | 402 | -0.400 | (2,0) | -1.400 | Weber St | 48 to 3 | 619 | 150 |
| 3 | 64 | 1.446 | (3,0) | 0.446 | Kansas St | 23 to 17 | 249 | 54 |
| 4 | 32 | 1.791 | (3,0) | 0.791 | --bye-- |
| 5 | 32 | 1.882 | (3,1) | 1.382 | Iowa St | 14 to 39 | 15 | 28 |
| 6 | 40 | 1.749 | (4,1) | 1.149 | Oklahoma St | 41 to 13 | 183 | 161 |
| 7 | 44 | 1.689 | (4,2) | 1.355 | BYU | 27 to 33 | 15 | 6 |
| 8 | 47 | 1.627 | (4,3) | 1.485 | Houston | 28 to 31 | 24 | 24 |
| 9 | 45 | 1.636 | (4,3) | 1.493 | --bye-- |
| 10 | 44 | 1.680 | (5,3) | 1.430 | Colorado | 52 to 17 | 64 | 96 |
| 11 | 35 | 1.742 | (6,3) | 1.408 | Kansas | 24 to 20 | 82 | 88 |
| 12 | 26 | 1.861 | (7,3) | 1.461 | Cincinnati | 30 to 24 | 42 | 57 |
| 13 | 27 | 1.852 | (8,3) | 1.398 | Baylor | 41 to 17 | 75 | 82 |
| 14 | 21 | 1.929 | (9,3) | 1.429 | Arizona St | 23 to 7 | 23 | 32 |
| 15 | 20 | 1.940 | (9,3) | 1.440 | --bye-- |
| 16 | 21 | 1.927 | (9,3) | 1.427 | --bye-- |
| 17 | 20 | 1.932 | (9,3) | 1.432 | --bye-- |
| 18 | 19 | 1.969 | (9,3) | 1.469 | --bye-- |
| 19 | 29 | 1.848 | (9,4) | 1.463 | SMU | 19 to 24 | 36 | 36 |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |