| 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 | Carnegie Mellon | 0 to 20 | 166 | 358 |
| 3 | 26 | 2.040 | (1,1) | 2.040 | Cornell IA | 28 to 12 | 119 | 674 |
| 4 | 268 | 0.279 | (2,1) | -0.054 | Illinois Col | 24 to 21 | 407 | 603 |
| 5 | 349 | -0.076 | (2,1) | -0.410 | --bye-- |
| 6 | 491 | -0.745 | (3,1) | -1.245 | Knox | 52 to 0 | 689 | 691 |
| 7 | 543 | -0.979 | (4,1) | -1.579 | Lawrence | 66 to 0 | 686 | 699 |
| 8 | 555 | -0.968 | (5,1) | -1.635 | Ripon | 37 to 12 | 655 | 661 |
| 9 | 574 | -1.060 | (6,1) | -1.775 | Grinnell | 38 to 7 | 694 | 693 |
| 10 | 588 | -1.137 | (6,2) | -1.637 | Monmouth IL | 0 to 29 | 540 | 540 |
| 11 | | | | | Beloit | | | 700 |
| 12 | | | | | Lake Forest | | | 644 |
| 13 | | | | | --bye-- |
| 14 | | | | | --bye-- |
| 15 | | | | | --bye-- |
| 16 | | | | | --bye-- |
| 17 | | | | | --bye-- |
| 18 | | | | | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |