| 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 | W Michigan | 23 to 6 | 518 | 95 |
| 2 | 137 | 0.578 | (2,0) | -0.422 | Boston College | 42 to 40 | 413 | 201 |
| 3 | 91 | 1.258 | (3,0) | 0.258 | Youngstown St | 41 to 24 | 243 | 149 |
| 4 | 52 | 1.580 | (3,1) | 1.080 | USC | 31 to 45 | 15 | 18 |
| 5 | 43 | 1.785 | (3,1) | 1.285 | --bye-- |
| 6 | 61 | 1.531 | (3,2) | 1.331 | Nebraska | 27 to 38 | 37 | 46 |
| 7 | 93 | 1.318 | (3,3) | 1.318 | UCLA | 13 to 38 | 102 | 73 |
| 8 | 84 | 1.329 | (3,4) | 1.471 | Indiana | 13 to 38 | 1 | 2 |
| 9 | 88 | 1.317 | (3,5) | 1.567 | Michigan | 20 to 31 | 17 | 14 |
| 10 | 93 | 1.269 | (3,6) | 1.603 | Minnesota | 20 to 23 | 50 | 50 |
| 11 | | | | | --bye-- |
| 12 | | | | | Penn St | | | 98 |
| 13 | | | | | Iowa | | | 45 |
| 14 | | | | | Maryland | | | 84 |
| 15 | | | | | --bye-- |
| 16 | | | | | --bye-- |
| 17 | | | | | --bye-- |
| 18 | | | | | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |