| 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 | Wartburg | 7 to 21 | 166 | 270 |
| 3 | 208 | 0.591 | (1,1) | 0.591 | Lawrence | 78 to 7 | 454 | 699 |
| 4 | 415 | -0.338 | (2,1) | -0.671 | Lake Forest | 49 to 6 | 578 | 644 |
| 5 | 504 | -0.845 | (2,1) | -1.178 | --bye-- |
| 6 | 572 | -1.126 | (3,1) | -1.626 | Grinnell | 49 to 9 | 684 | 693 |
| 7 | 545 | -0.989 | (4,1) | -1.589 | Illinois Col | 48 to 15 | 594 | 603 |
| 8 | 553 | -0.966 | (5,1) | -1.632 | Cornell IA | 45 to 3 | 669 | 674 |
| 9 | 571 | -1.037 | (6,1) | -1.752 | Beloit | 72 to 0 | 699 | 700 |
| 10 | 540 | -0.896 | (7,1) | -1.646 | Chicago | 29 to 0 | 588 | 588 |
| 11 | | | | | Ripon | | | 661 |
| 12 | | | | | Knox | | | 691 |
| 13 | | | | | --bye-- |
| 14 | | | | | --bye-- |
| 15 | | | | | --bye-- |
| 16 | | | | | --bye-- |
| 17 | | | | | --bye-- |
| 18 | | | | | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |