| 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 | Carthage | 41 to 20 | 424 | 598 |
| 3 | 205 | 2.000 | (2,0) | 1.000 | Bluffton | 42 to 20 | 321 | 666 |
| 4 | 359 | 0.027 | (3,0) | -0.973 | Rose-Hulman | 48 to 19 | 545 | 491 |
| 5 | 343 | 0.112 | (4,0) | -0.888 | UW-Stevens Point | 30 to 7 | 529 | 631 |
| 6 | 292 | 0.301 | (5,0) | -0.699 | Kalamazoo | 44 to 17 | 426 | 610 |
| 7 | 412 | -0.171 | (5,1) | -0.837 | Hope | 6 to 14 | 364 | 359 |
| 8 | 426 | -0.202 | (5,1) | -0.869 | --bye-- |
| 9 | 459 | -0.295 | (5,2) | -0.724 | Trine | 28 to 35 | 505 | 513 |
| 10 | 452 | -0.279 | (6,2) | -0.779 | Adrian | 34 to 21 | 725 | 722 |
| 11 | 432 | -0.227 | (7,2) | -0.783 | Olivet | 35 to 7 | 617 | 607 |
| 12 | 452 | -0.278 | (7,3) | -0.678 | Alma | 14 to 50 | 311 | 294 |
| 13 | 448 | -0.253 | (7,3) | -0.653 | --bye-- |
| 14 | 443 | -0.247 | (7,3) | -0.647 | --bye-- |
| 15 | 454 | -0.349 | (7,3) | -0.749 | --bye-- |
| 16 | 457 | -0.355 | (7,3) | -0.755 | --bye-- |
| 17 | 458 | -0.367 | (7,3) | -0.767 | --bye-- |
| 18 | 456 | -0.385 | (7,3) | -0.785 | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |