| Week | Rank | Rate | Record | SOS | Opponent | Score | Rank Then | Rank Now |
| 0 | 9 | 0.000 | (0,0) | 0.000 | --bye-- |
| 1 | 518 | -0.500 | (0,1) | 0.500 | Oregon | 13 to 59 | 7 | 2 |
| 2 | 689 | -2.985 | (0,2) | -1.985 | S Dakota St | 24 to 30 | 662 | 86 |
| 3 | 177 | 0.699 | (1,2) | 1.032 | San Diego | 41 to 7 | 374 | 151 |
| 4 | 134 | 0.955 | (2,2) | 0.955 | Mercyhurst | 17 to 0 | 333 | 267 |
| 5 | 95 | 1.252 | (3,2) | 1.052 | E Washington | 57 to 3 | 282 | 170 |
| 6 | 70 | 1.401 | (4,2) | 1.068 | Northern Arizona | 34 to 10 | 104 | 121 |
| 7 | 77 | 1.396 | (5,2) | 0.967 | Idaho St | 48 to 14 | 224 | 134 |
| 8 | 74 | 1.342 | (5,2) | 0.914 | --bye-- |
| 9 | 67 | 1.400 | (6,2) | 0.900 | Cal Poly | 34 to 17 | 135 | 157 |
| 10 | 68 | 1.379 | (7,2) | 0.824 | N Colorado | 55 to 7 | 224 | 219 |
| 11 | 62 | 1.418 | (8,2) | 0.818 | Weber St | 66 to 14 | 176 | 150 |
| 12 | 55 | 1.522 | (9,2) | 0.885 | UC Davis | 38 to 17 | 89 | 73 |
| 13 | 42 | 1.623 | (10,2) | 0.957 | Montana | 31 to 28 | 54 | 45 |
| 14 | 44 | 1.628 | (10,2) | 0.962 | --bye-- |
| 15 | 36 | 1.706 | (11,2) | 1.014 | Yale | 21 to 13 | 94 | 93 |
| 16 | 36 | 1.729 | (12,2) | 1.015 | SF Austin | 44 to 28 | 103 | 97 |
| 17 | 31 | 1.794 | (13,2) | 1.061 | Montana | 48 to 23 | 45 | 45 |
| 18 | 32 | 1.797 | (13,2) | 1.064 | --bye-- |
| 19 | 33 | 1.798 | (13,2) | 1.064 | --bye-- |
| 20 | | | | | Illinois St | | | 63 |
| 21 | | | | | --bye-- |