| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 1 | 40 | 0.000 | (0,0) | 0.000 | --bye-- |
| 2 | 363 | 0.000 | (0,0) | 0.000 | --bye-- |
| 3 | 537 | -0.500 | (0,1) | 0.500 | Cornell IA | 7 to 31 | 381 | 639 |
| 4 | 691 | -1.646 | (0,2) | -0.646 | Monmouth IL | 13 to 70 | 512 | 527 |
| 5 | 745 | -2.140 | (0,3) | -1.140 | Minnesota-Morris | 22 to 38 | 710 | 674 |
| 6 | 760 | -2.312 | (0,4) | -1.312 | Grinnell | 16 to 34 | 745 | 749 |
| 7 | 757 | -2.184 | (0,5) | -1.184 | Lake Forest | 0 to 76 | 490 | 622 |
| 8 | 763 | -2.343 | (0,6) | -1.343 | Beloit | 14 to 34 | 755 | 753 |
| 9 | 762 | -2.241 | (0,7) | -1.241 | Illinois College | 0 to 72 | 556 | 537 |
| 10 | 762 | -2.220 | (0,8) | -1.220 | Chicago | 12 to 55 | 683 | 643 |
| 11 | 762 | -2.283 | (0,9) | -1.283 | Knox | 28 to 48 | 742 | 736 |
| 12 | 760 | -2.237 | (0,10) | -1.237 | Ripon | 34 to 55 | 690 | 681 |
| 13 | 760 | -2.160 | (0,10) | -1.160 | --bye-- |
| 14 | 759 | -2.167 | (0,10) | -1.167 | --bye-- |
| 15 | 760 | -2.219 | (0,10) | -1.219 | --bye-- |
| 16 | 760 | -2.256 | (0,10) | -1.256 | --bye-- |
| 17 | 761 | -2.276 | (0,10) | -1.276 | --bye-- |
| 18 | 761 | -2.295 | (0,10) | -1.295 | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |