| 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 | Central Arkansas | 27 to 13 | 424 | 142 |
| 3 | 668 | -5.719 | (2,0) | -6.719 | Arizona St | 27 to 15 | 684 | 87 |
| 4 | 92 | 1.518 | (2,1) | 1.185 | South Alabama | 7 to 33 | 72 | 96 |
| 5 | 184 | 0.765 | (2,2) | 0.765 | Iowa St | 27 to 34 | 126 | 37 |
| 6 | 160 | 0.863 | (2,2) | 0.863 | --bye-- |
| 7 | 75 | 1.445 | (3,2) | 1.245 | Kansas St | 29 to 21 | 56 | 17 |
| 8 | 38 | 1.774 | (4,2) | 1.441 | Kansas | 39 to 32 | 36 | 24 |
| 9 | 30 | 1.876 | (5,2) | 1.448 | West Virginia | 48 to 34 | 64 | 30 |
| 10 | 28 | 1.953 | (6,2) | 1.453 | Cincinnati | 45 to 13 | 128 | 135 |
| 11 | 17 | 2.078 | (7,2) | 1.523 | Oklahoma | 27 to 24 | 16 | 13 |
| 12 | 24 | 1.939 | (7,3) | 1.539 | Central Florida | 3 to 45 | 63 | 71 |
| 13 | 22 | 1.944 | (8,3) | 1.489 | Houston | 43 to 30 | 102 | 109 |
| 14 | 19 | 2.027 | (9,3) | 1.527 | Brigham Young | 40 to 34 | 72 | 74 |
| 15 | 22 | 1.918 | (9,4) | 1.533 | Texas | 21 to 49 | 3 | 4 |
| 16 | 22 | 1.913 | (9,4) | 1.529 | --bye-- |
| 17 | 21 | 1.908 | (9,4) | 1.523 | --bye-- |
| 18 | 19 | 1.926 | (10,4) | 1.498 | Texas A&M | 31 to 23 | 48 | 48 |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |