| 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 | Eureka | 13 to 14 | 166 | 678 |
| 3 | 598 | -1.281 | (0,2) | -0.281 | Ripon | 7 to 50 | 427 | 661 |
| 4 | 694 | -3.078 | (1,2) | -2.745 | Beloit | 16 to 14 | 701 | 700 |
| 5 | 698 | -3.293 | (1,2) | -2.960 | --bye-- |
| 6 | 689 | -2.526 | (1,3) | -2.026 | Chicago | 0 to 52 | 491 | 588 |
| 7 | 683 | -2.309 | (2,3) | -2.109 | Grinnell | 20 to 17 | 692 | 693 |
| 8 | 686 | -2.209 | (2,4) | -1.876 | Illinois Col | 14 to 64 | 610 | 603 |
| 9 | 689 | -2.199 | (2,4) | -1.866 | --bye-- |
| 10 | 691 | -2.291 | (2,5) | -1.862 | Cornell IA | 14 to 35 | 674 | 674 |
| 11 | | | | | Lake Forest | | | 644 |
| 12 | | | | | Monmouth IL | | | 540 |
| 13 | | | | | --bye-- |
| 14 | | | | | --bye-- |
| 15 | | | | | --bye-- |
| 16 | | | | | --bye-- |
| 17 | | | | | --bye-- |
| 18 | | | | | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |