| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 0 | 9 | 0.000 | (0,0) | 0.000 | --bye-- |
| 1 | 7 | 0.500 | (1,0) | -0.500 | Thomas More | 49 to 3 | 518 | 504 |
| 2 | 22 | 2.600 | (1,1) | 2.600 | Purdue | 17 to 34 | 6 | 108 |
| 3 | 332 | 0.046 | (2,1) | -0.287 | TN Martin | 37 to 10 | 540 | 190 |
| 4 | 225 | 0.455 | (3,1) | -0.045 | SE Missouri St | 59 to 31 | 355 | 252 |
| 5 | 199 | 0.605 | (3,1) | 0.105 | --bye-- |
| 6 | 128 | 0.984 | (4,1) | 0.384 | Indiana St | 55 to 27 | 127 | 189 |
| 7 | 136 | 0.946 | (4,2) | 0.612 | N Dakota St | 17 to 45 | 43 | 47 |
| 8 | 148 | 0.835 | (4,3) | 0.693 | North Dakota | 19 to 38 | 105 | 117 |
| 9 | 134 | 0.892 | (5,3) | 0.642 | Northern Iowa | 31 to 17 | 227 | 229 |
| 10 | 140 | 0.887 | (6,3) | 0.554 | Murray St | 27 to 7 | 336 | 299 |
| 11 | 153 | 0.778 | (6,4) | 0.578 | Youngstown St | 38 to 48 | 134 | 126 |
| 12 | 153 | 0.751 | (6,5) | 0.660 | South Dakota | 51 to 53 | 90 | 80 |
| 13 | 146 | 0.812 | (7,5) | 0.645 | Illinois St | 37 to 7 | 104 | 67 |
| 14 | 147 | 0.830 | (7,5) | 0.663 | --bye-- |
| 15 | 143 | 0.834 | (7,5) | 0.667 | --bye-- |
| 16 | 142 | 0.841 | (7,5) | 0.674 | --bye-- |
| 17 | 142 | 0.859 | (7,5) | 0.693 | --bye-- |
| 18 | 142 | 0.863 | (7,5) | 0.696 | --bye-- |
| 19 | 142 | 0.860 | (7,5) | 0.693 | --bye-- |
| 20 | 142 | 0.850 | (7,5) | 0.683 | --bye-- |
| 21 | 141 | 0.851 | (7,5) | 0.684 | --bye-- |