| 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 | 413 |
| 3 | 119 | 1.040 | (0,2) | 2.040 | Chicago | 12 to 28 | 26 | 588 |
| 4 | 512 | -0.860 | (1,2) | -0.527 | Lawrence | 20 to 0 | 628 | 699 |
| 5 | 561 | -1.149 | (1,2) | -0.815 | --bye-- |
| 6 | 650 | -1.769 | (2,2) | -1.769 | Beloit | 26 to 19 | 701 | 700 |
| 7 | 668 | -1.989 | (2,3) | -1.789 | Ripon | 14 to 22 | 652 | 661 |
| 8 | 669 | -1.924 | (2,4) | -1.590 | Monmouth IL | 3 to 45 | 553 | 540 |
| 9 | 680 | -2.050 | (2,5) | -1.621 | Lake Forest | 24 to 49 | 653 | 644 |
| 10 | 674 | -1.906 | (3,5) | -1.656 | Knox | 35 to 14 | 691 | 691 |
| 11 | | | | | Illinois Col | | | 603 |
| 12 | | | | | Grinnell | | | 693 |
| 13 | | | | | --bye-- |
| 14 | | | | | --bye-- |
| 15 | | | | | --bye-- |
| 16 | | | | | --bye-- |
| 17 | | | | | --bye-- |
| 18 | | | | | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |