| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 1 | 40 | 0.000 | (0,0) | 0.000 | --bye-- |
| 2 | 424 | -0.500 | (0,1) | 0.500 | St Norbert | 7 to 23 | 29 | 615 |
| 3 | 652 | -3.698 | (1,1) | -3.698 | Grinnell | 31 to 12 | 657 | 749 |
| 4 | 653 | -1.352 | (1,2) | -1.019 | Illinois College | 21 to 52 | 538 | 537 |
| 5 | 704 | -1.610 | (1,2) | -1.276 | --bye-- |
| 6 | 720 | -1.614 | (1,3) | -1.114 | Cornell IA | 33 to 36 | 604 | 639 |
| 7 | 713 | -1.524 | (2,3) | -1.324 | Knox | 10 to 3 | 747 | 736 |
| 8 | 729 | -1.636 | (2,4) | -1.303 | Chicago | 6 to 21 | 671 | 643 |
| 9 | 694 | -1.317 | (3,4) | -1.174 | Lake Forest | 12 to 0 | 577 | 622 |
| 10 | 702 | -1.381 | (3,5) | -1.131 | Monmouth IL | 3 to 45 | 583 | 527 |
| 11 | 695 | -1.341 | (4,5) | -1.230 | Beloit | 52 to 17 | 756 | 753 |
| 12 | 690 | -1.289 | (5,5) | -1.289 | Lawrence | 55 to 34 | 760 | 761 |
| 13 | 683 | -1.223 | (5,5) | -1.223 | --bye-- |
| 14 | 680 | -1.230 | (5,5) | -1.230 | --bye-- |
| 15 | 676 | -1.282 | (5,5) | -1.282 | --bye-- |
| 16 | 680 | -1.318 | (5,5) | -1.318 | --bye-- |
| 17 | 682 | -1.339 | (5,5) | -1.339 | --bye-- |
| 18 | 681 | -1.357 | (5,5) | -1.357 | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |