| 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 | Rochester NY | 17 to 38 | 166 | 622 |
| 3 | 690 | -3.306 | (0,2) | -2.306 | Madonna | 28 to 45 | 663 | 421 |
| 4 | 634 | -1.662 | (0,3) | -0.662 | Bluffton | 28 to 37 | 466 | 589 |
| 5 | 660 | -2.111 | (0,4) | -1.111 | Adrian | 27 to 59 | 540 | 392 |
| 6 | 617 | -1.533 | (1,4) | -0.933 | Kalamazoo | 47 to 44 | 594 | 587 |
| 7 | 616 | -1.551 | (1,4) | -0.951 | --bye-- |
| 8 | 613 | -1.406 | (1,5) | -0.739 | Trine | 7 to 59 | 400 | 467 |
| 9 | 608 | -1.379 | (1,6) | -0.664 | Alma | 21 to 53 | 329 | 308 |
| 10 | 616 | -1.406 | (1,7) | -0.656 | Calvin | 20 to 50 | 388 | 400 |
| 11 | 628 | -1.505 | (1,8) | -0.727 | Albion | 42 to 58 | 554 | 570 |
| 12 | 629 | -1.495 | (1,9) | -0.695 | Hope | 6 to 63 | 312 | 325 |
| 13 | 629 | -1.523 | (1,9) | -0.723 | --bye-- |
| 14 | 633 | -1.521 | (1,9) | -0.721 | --bye-- |
| 15 | 634 | -1.507 | (1,9) | -0.707 | --bye-- |
| 16 | 633 | -1.490 | (1,9) | -0.690 | --bye-- |
| 17 | 632 | -1.486 | (1,9) | -0.686 | --bye-- |
| 18 | 632 | -1.486 | (1,9) | -0.686 | --bye-- |
| 19 | 631 | -1.486 | (1,9) | -0.686 | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |