| 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 | Coe | 6 to 62 | 166 | 359 |
| 3 | 119 | 1.040 | (0,2) | 2.040 | Chicago | 12 to 28 | 26 | 620 |
| 4 | 512 | -0.860 | (1,2) | -0.527 | Lawrence | 20 to 0 | 628 | 700 |
| 5 | 561 | -1.169 | (1,2) | -0.836 | --bye-- |
| 6 | 650 | -1.815 | (2,2) | -1.815 | Beloit | 26 to 19 | 701 | 699 |
| 7 | 668 | -2.043 | (2,3) | -1.843 | Ripon | 14 to 22 | 652 | 661 |
| 8 | 669 | -1.988 | (2,4) | -1.654 | Monmouth IL | 3 to 45 | 553 | 546 |
| 9 | 680 | -2.126 | (2,5) | -1.697 | Lake Forest | 24 to 49 | 653 | 628 |
| 10 | 674 | -1.990 | (3,5) | -1.740 | Knox | 35 to 14 | 691 | 695 |
| 11 | 677 | -2.040 | (3,6) | -1.707 | Illinois Col | 0 to 24 | 604 | 615 |
| 12 | 678 | -2.000 | (4,6) | -1.800 | Grinnell | 22 to 17 | 696 | 697 |
| 13 | 679 | -2.033 | (4,6) | -1.833 | --bye-- |
| 14 | 678 | -2.028 | (4,6) | -1.828 | --bye-- |
| 15 | 675 | -1.945 | (4,6) | -1.745 | --bye-- |
| 16 | 675 | -1.955 | (4,6) | -1.755 | --bye-- |
| 17 | 673 | -1.924 | (4,6) | -1.724 | --bye-- |
| 18 | 673 | -1.924 | (4,6) | -1.724 | --bye-- |
| 19 | 674 | -1.928 | (4,6) | -1.728 | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |