| 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 | 416 |
| 2 | 1 | 4.600 | (2,0) | 3.600 | E Illinois | 38 to 14 | 7 | 269 |
| 3 | 297 | 0.272 | (2,1) | -0.061 | Indiana | 0 to 73 | 93 | 1 |
| 4 | 133 | 0.957 | (2,2) | 0.957 | Montana | 20 to 63 | 37 | 45 |
| 5 | 96 | 1.218 | (2,2) | 1.218 | --bye-- |
| 6 | 127 | 1.000 | (2,3) | 1.200 | S Illinois | 27 to 55 | 128 | 142 |
| 7 | 155 | 0.856 | (2,4) | 1.189 | South Dakota | 14 to 19 | 99 | 79 |
| 8 | 172 | 0.690 | (2,5) | 1.119 | N Dakota St | 7 to 38 | 41 | 47 |
| 9 | 174 | 0.627 | (2,6) | 1.127 | North Dakota | 17 to 46 | 98 | 117 |
| 10 | 150 | 0.810 | (3,6) | 1.144 | S Dakota St | 24 to 12 | 79 | 86 |
| 11 | 164 | 0.712 | (3,7) | 1.112 | Illinois St | 20 to 52 | 101 | 63 |
| 12 | 176 | 0.636 | (3,8) | 1.090 | Youngstown St | 29 to 48 | 128 | 125 |
| 13 | 216 | 0.465 | (3,9) | 0.965 | Murray St | 17 to 31 | 310 | 296 |
| 14 | 207 | 0.485 | (3,9) | 0.985 | --bye-- |
| 15 | 194 | 0.503 | (3,9) | 1.003 | --bye-- |
| 16 | 192 | 0.514 | (3,9) | 1.014 | --bye-- |
| 17 | 190 | 0.528 | (3,9) | 1.028 | --bye-- |
| 18 | 189 | 0.531 | (3,9) | 1.031 | --bye-- |
| 19 | 189 | 0.533 | (3,9) | 1.033 | --bye-- |
| 20 | | | | | --bye-- |
| 21 | | | | | --bye-- |