| 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 | 166 | 0.500 | (1,0) | -0.500 | Oberlin | 88 to 6 | 443 | 652 |
| 3 | 82 | 1.367 | (2,0) | 0.367 | Concordia WI | 34 to 7 | 280 | 459 |
| 4 | 562 | -1.109 | (3,0) | -2.109 | Heidelberg | 40 to 37 | 657 | 451 |
| 5 | 442 | -0.513 | (4,0) | -1.513 | Kalamazoo | 24 to 16 | 578 | 587 |
| 6 | 402 | -0.349 | (4,1) | -0.949 | Alma | 6 to 55 | 332 | 308 |
| 7 | 386 | -0.342 | (4,1) | -0.942 | --bye-- |
| 8 | 411 | -0.413 | (4,2) | -0.746 | Adrian | 17 to 48 | 369 | 392 |
| 9 | 385 | -0.307 | (5,2) | -0.736 | Trine | 34 to 31 | 451 | 467 |
| 10 | 388 | -0.331 | (6,2) | -0.831 | Olivet MI | 50 to 20 | 616 | 631 |
| 11 | 399 | -0.386 | (6,3) | -0.719 | Hope | 0 to 52 | 297 | 325 |
| 12 | 398 | -0.399 | (7,3) | -0.799 | Albion | 53 to 24 | 570 | 570 |
| 13 | 414 | -0.439 | (7,3) | -0.839 | --bye-- |
| 14 | 408 | -0.421 | (7,3) | -0.821 | --bye-- |
| 15 | 403 | -0.404 | (7,3) | -0.804 | --bye-- |
| 16 | 401 | -0.385 | (7,3) | -0.785 | --bye-- |
| 17 | 399 | -0.379 | (7,3) | -0.779 | --bye-- |
| 18 | 399 | -0.379 | (7,3) | -0.779 | --bye-- |
| 19 | 400 | -0.380 | (7,3) | -0.780 | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |