| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 1 | 40 | 0.000 | (0,0) | 0.000 | --bye-- |
| 2 | 29 | 0.500 | (1,0) | -0.500 | Rockford | 34 to 27 | 424 | 751 |
| 3 | 588 | -1.000 | (1,1) | -1.000 | Knox | 14 to 31 | 457 | 736 |
| 4 | 738 | -2.278 | (1,2) | -1.945 | Grinnell | 23 to 33 | 713 | 749 |
| 5 | 748 | -2.237 | (1,2) | -1.903 | --bye-- |
| 6 | 756 | -2.176 | (1,3) | -1.676 | Chicago | 7 to 48 | 656 | 643 |
| 7 | 761 | -2.313 | (1,4) | -1.713 | Cornell IA | 24 to 36 | 654 | 639 |
| 8 | 755 | -2.106 | (2,4) | -1.773 | Lawrence | 34 to 14 | 763 | 761 |
| 9 | 756 | -2.017 | (2,5) | -1.588 | Monmouth IL | 3 to 59 | 606 | 527 |
| 10 | 754 | -1.954 | (2,6) | -1.454 | Lake Forest | 0 to 41 | 590 | 622 |
| 11 | 756 | -2.011 | (2,7) | -1.456 | Ripon | 17 to 52 | 695 | 681 |
| 12 | 752 | -1.928 | (2,8) | -1.328 | Illinois College | 7 to 54 | 548 | 537 |
| 13 | 752 | -1.856 | (2,8) | -1.256 | --bye-- |
| 14 | 748 | -1.864 | (2,8) | -1.264 | --bye-- |
| 15 | 747 | -1.915 | (2,8) | -1.315 | --bye-- |
| 16 | 752 | -1.952 | (2,8) | -1.352 | --bye-- |
| 17 | 753 | -1.972 | (2,8) | -1.372 | --bye-- |
| 18 | 753 | -1.991 | (2,8) | -1.391 | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |