| 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 | Presbyterian | 41 to 10 | 424 | 464 |
| 3 | 441 | 0.131 | (1,1) | 0.131 | Louisville | 0 to 56 | 304 | 22 |
| 4 | 147 | 1.127 | (1,2) | 1.460 | Middle Tennessee St | 14 to 35 | 51 | 151 |
| 5 | 148 | 1.009 | (1,2) | 1.342 | --bye-- |
| 6 | 175 | 0.799 | (2,2) | 0.799 | Indiana St | 30 to 28 | 397 | 349 |
| 7 | 178 | 0.766 | (2,3) | 0.966 | South Dakota | 7 to 38 | 34 | 60 |
| 8 | 204 | 0.646 | (2,4) | 0.980 | Southern Illinois | 6 to 27 | 55 | 114 |
| 9 | 246 | 0.456 | (2,5) | 0.884 | Missouri St | 24 to 28 | 159 | 189 |
| 10 | 250 | 0.423 | (2,6) | 0.923 | North Dakota St | 6 to 38 | 112 | 69 |
| 11 | 273 | 0.359 | (2,7) | 0.915 | North Dakota | 31 to 45 | 106 | 117 |
| 12 | 274 | 0.327 | (2,8) | 0.927 | Illinois St | 7 to 44 | 172 | 199 |
| 13 | 269 | 0.337 | (2,9) | 0.973 | Youngstown St | 17 to 34 | 98 | 115 |
| 14 | 268 | 0.352 | (2,9) | 0.988 | --bye-- |
| 15 | 276 | 0.258 | (2,9) | 0.894 | --bye-- |
| 16 | 280 | 0.255 | (2,9) | 0.891 | --bye-- |
| 17 | 283 | 0.225 | (2,9) | 0.861 | --bye-- |
| 18 | 284 | 0.211 | (2,9) | 0.847 | --bye-- |
| 19 | | | | | --bye-- |
| 20 | | | | | --bye-- |