| 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 | North Carolina | 48 to 14 | 518 | 115 |
| 2 | 140 | 0.515 | (1,0) | -0.485 | --bye-- |
| 3 | 34 | 1.885 | (2,0) | 0.885 | Abilene Chr | 42 to 21 | 164 | 103 |
| 4 | 9 | 2.394 | (3,0) | 1.394 | SMU | 35 to 24 | 91 | 36 |
| 5 | 37 | 1.816 | (3,1) | 1.316 | Arizona St | 24 to 27 | 12 | 32 |
| 6 | 27 | 1.938 | (4,1) | 1.338 | Colorado | 35 to 21 | 72 | 96 |
| 7 | 41 | 1.708 | (4,2) | 1.375 | Kansas St | 28 to 41 | 92 | 54 |
| 8 | 36 | 1.764 | (5,2) | 1.335 | Baylor | 42 to 36 | 70 | 82 |
| 9 | 34 | 1.764 | (6,2) | 1.264 | West Virginia | 23 to 17 | 142 | 94 |
| 10 | 29 | 1.872 | (6,2) | 1.372 | --bye-- |
| 11 | 34 | 1.757 | (6,3) | 1.424 | Iowa St | 17 to 20 | 31 | 28 |
| 12 | 36 | 1.739 | (6,4) | 1.539 | BYU | 13 to 44 | 5 | 6 |
| 13 | 30 | 1.817 | (7,4) | 1.544 | Houston | 17 to 14 | 32 | 24 |
| 14 | 26 | 1.849 | (8,4) | 1.515 | Cincinnati | 45 to 23 | 55 | 57 |
| 15 | 28 | 1.851 | (8,4) | 1.517 | --bye-- |
| 16 | 30 | 1.837 | (8,4) | 1.503 | --bye-- |
| 17 | 28 | 1.844 | (8,4) | 1.511 | --bye-- |
| 18 | 27 | 1.871 | (8,4) | 1.538 | --bye-- |
| 19 | 21 | 1.951 | (9,4) | 1.566 | USC | 30 to 27 | 14 | 14 |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |