| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 0 | 9 | 0.000 | (0,0) | 0.000 | --bye-- |
| 1 | 7 | 0.500 | (1,0) | -0.500 | UCLA | 43 to 10 | 518 | 84 |
| 2 | 575 | -0.543 | (2,0) | -1.543 | Cal Poly | 63 to 9 | 607 | 157 |
| 3 | 88 | 1.314 | (3,0) | 0.314 | Wyoming | 31 to 6 | 171 | 155 |
| 4 | 76 | 1.323 | (3,1) | 0.823 | Texas Tech | 10 to 34 | 56 | 10 |
| 5 | 49 | 1.645 | (4,1) | 1.045 | West Virginia | 48 to 14 | 150 | 94 |
| 6 | 43 | 1.724 | (4,1) | 1.124 | --bye-- |
| 7 | 21 | 2.065 | (5,1) | 1.398 | Arizona St | 42 to 10 | 33 | 32 |
| 8 | 27 | 1.864 | (5,2) | 1.435 | BYU | 21 to 24 | 9 | 6 |
| 9 | 20 | 1.971 | (6,2) | 1.471 | Colorado | 53 to 7 | 50 | 96 |
| 10 | 12 | 2.078 | (7,2) | 1.522 | Cincinnati | 45 to 14 | 36 | 57 |
| 11 | 15 | 2.039 | (7,2) | 1.483 | --bye-- |
| 12 | 14 | 2.081 | (8,2) | 1.481 | Baylor | 55 to 28 | 73 | 82 |
| 13 | 13 | 2.071 | (9,2) | 1.434 | Kansas St | 51 to 47 | 67 | 54 |
| 14 | 16 | 2.053 | (10,2) | 1.387 | Kansas | 31 to 21 | 87 | 88 |
| 15 | 15 | 2.069 | (10,2) | 1.403 | --bye-- |
| 16 | 15 | 2.059 | (10,2) | 1.392 | --bye-- |
| 17 | 15 | 2.065 | (10,2) | 1.398 | --bye-- |
| 18 | 14 | 2.089 | (10,2) | 1.423 | --bye-- |
| 19 | 12 | 2.090 | (11,2) | 1.397 | Nebraska | 44 to 22 | 55 | 55 |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |