| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 0 | 9 | 0.000 | (0,0) | 0.000 | --bye-- |
| 1 | 188 | 0.000 | (0,0) | 0.000 | --bye-- |
| 2 | 443 | -0.500 | (0,1) | 0.500 | Claremont M.S. | 7 to 14 | 166 | 538 |
| 3 | 415 | -0.200 | (0,2) | 0.800 | Illinois Col | 25 to 28 | 159 | 615 |
| 4 | 578 | -1.210 | (0,3) | -0.210 | Monmouth IL | 6 to 49 | 415 | 546 |
| 5 | 649 | -1.940 | (0,3) | -0.940 | --bye-- |
| 6 | 652 | -1.856 | (1,3) | -1.356 | Ripon | 38 to 0 | 665 | 661 |
| 7 | 666 | -1.987 | (2,3) | -1.787 | Beloit | 59 to 0 | 701 | 699 |
| 8 | 658 | -1.809 | (3,3) | -1.809 | Grinnell | 70 to 0 | 693 | 697 |
| 9 | 653 | -1.701 | (4,3) | -1.844 | Cornell IA | 49 to 24 | 680 | 674 |
| 10 | 644 | -1.656 | (5,3) | -1.906 | Lawrence | 72 to 0 | 699 | 700 |
| 11 | 637 | -1.611 | (6,3) | -1.944 | Knox | 63 to 0 | 696 | 695 |
| 12 | 630 | -1.521 | (7,3) | -1.921 | Chicago | 34 to 28 | 624 | 620 |
| 13 | 632 | -1.558 | (7,3) | -1.958 | --bye-- |
| 14 | 634 | -1.546 | (7,3) | -1.946 | --bye-- |
| 15 | 628 | -1.467 | (7,3) | -1.867 | --bye-- |
| 16 | 630 | -1.479 | (7,3) | -1.879 | --bye-- |
| 17 | 628 | -1.448 | (7,3) | -1.848 | --bye-- |
| 18 | 628 | -1.448 | (7,3) | -1.848 | --bye-- |
| 19 | 628 | -1.451 | (7,3) | -1.851 | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |