| 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 | Macalester | 15 to 20 | 166 | 552 |
| 3 | 371 | -0.062 | (1,1) | -0.062 | Beloit | 24 to 0 | 568 | 699 |
| 4 | 695 | -3.085 | (1,2) | -2.752 | Ripon | 20 to 30 | 666 | 661 |
| 5 | 694 | -3.157 | (1,2) | -2.824 | --bye-- |
| 6 | 684 | -2.456 | (1,3) | -1.956 | Monmouth IL | 9 to 49 | 572 | 546 |
| 7 | 692 | -2.576 | (1,4) | -1.976 | Knox | 17 to 20 | 683 | 695 |
| 8 | 693 | -2.510 | (1,5) | -1.843 | Lake Forest | 0 to 70 | 658 | 628 |
| 9 | 694 | -2.439 | (1,6) | -1.725 | Chicago | 7 to 38 | 574 | 620 |
| 10 | 693 | -2.395 | (1,7) | -1.645 | Illinois Col | 7 to 14 | 603 | 615 |
| 11 | 694 | -2.330 | (2,7) | -1.774 | Lawrence | 63 to 6 | 700 | 700 |
| 12 | 696 | -2.437 | (2,8) | -1.837 | Cornell IA | 17 to 22 | 678 | 674 |
| 13 | 697 | -2.478 | (2,8) | -1.878 | --bye-- |
| 14 | 697 | -2.463 | (2,8) | -1.863 | --bye-- |
| 15 | 697 | -2.377 | (2,8) | -1.777 | --bye-- |
| 16 | 697 | -2.392 | (2,8) | -1.792 | --bye-- |
| 17 | 697 | -2.360 | (2,8) | -1.760 | --bye-- |
| 18 | 697 | -2.360 | (2,8) | -1.760 | --bye-- |
| 19 | 697 | -2.365 | (2,8) | -1.765 | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |