| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 1 | 40 | 0.000 | (0,0) | 0.000 | --bye-- |
| 2 | 29 | 0.500 | (1,0) | -0.500 | Rice | 37 to 10 | 424 | 127 |
| 3 | 1 | 9.515 | (2,0) | 8.515 | Alabama | 34 to 24 | 3 | 5 |
| 4 | 1 | 3.409 | (3,0) | 2.409 | Wyoming | 31 to 10 | 26 | 33 |
| 5 | 2 | 2.980 | (4,0) | 1.980 | Baylor | 38 to 6 | 99 | 133 |
| 6 | 1 | 3.029 | (5,0) | 2.029 | Kansas | 40 to 14 | 16 | 24 |
| 7 | 3 | 2.598 | (5,1) | 1.931 | Oklahoma | 30 to 34 | 4 | 13 |
| 8 | 6 | 2.457 | (5,1) | 1.791 | --bye-- |
| 9 | 3 | 2.416 | (6,1) | 1.702 | Houston | 31 to 24 | 100 | 109 |
| 10 | 4 | 2.409 | (7,1) | 1.659 | Brigham Young | 35 to 6 | 58 | 74 |
| 11 | 3 | 2.465 | (8,1) | 1.687 | Kansas St | 33 to 30 | 26 | 17 |
| 12 | 7 | 2.411 | (9,1) | 1.611 | TCU | 29 to 26 | 83 | 70 |
| 13 | 5 | 2.426 | (10,1) | 1.608 | Iowa St | 26 to 16 | 39 | 37 |
| 14 | 3 | 2.494 | (11,1) | 1.660 | Texas Tech | 57 to 7 | 47 | 40 |
| 15 | 3 | 2.468 | (12,1) | 1.622 | Oklahoma St | 49 to 21 | 22 | 19 |
| 16 | 3 | 2.462 | (12,1) | 1.616 | --bye-- |
| 17 | 3 | 2.465 | (12,1) | 1.619 | --bye-- |
| 18 | 4 | 2.385 | (12,2) | 1.671 | Washington | 31 to 37 | 1 | 1 |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |