| 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 | McKendree | 41 to 24 | 518 | 383 |
| 2 | 1 | 4.600 | (2,0) | 3.600 | E Illinois | 38 to 14 | 7 | 259 |
| 3 | 297 | 0.272 | (2,1) | -0.061 | Indiana | 0 to 73 | 93 | 2 |
| 4 | 133 | 0.957 | (2,2) | 0.957 | Montana | 20 to 63 | 37 | 33 |
| 5 | 96 | 1.238 | (2,2) | 1.238 | --bye-- |
| 6 | 127 | 1.046 | (2,3) | 1.246 | S Illinois | 27 to 55 | 128 | 139 |
| 7 | 155 | 0.909 | (2,4) | 1.243 | South Dakota | 14 to 19 | 99 | 105 |
| 8 | 172 | 0.754 | (2,5) | 1.183 | N Dakota St | 7 to 38 | 41 | 34 |
| 9 | 174 | 0.703 | (2,6) | 1.203 | North Dakota | 17 to 46 | 98 | 107 |
| 10 | 150 | 0.895 | (3,6) | 1.228 | S Dakota St | 24 to 12 | 79 | 79 |
| 11 | | | | | Illinois St | | | 113 |
| 12 | | | | | Youngstown St | | | 149 |
| 13 | | | | | Murray St | | | 335 |
| 14 | | | | | --bye-- |
| 15 | | | | | --bye-- |
| 16 | | | | | --bye-- |
| 17 | | | | | --bye-- |
| 18 | | | | | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |