Schedule:
| Game | Date | Away Team (Rank) | Away Score | Home Team (Rank) | Home Score | Game Status | Result | Margin |
|---|---|---|---|---|---|---|---|---|
| 1 | 2021-09-04 | Simon Fraser | 0 | Idaho | 68 | Final | W | 68 |
| 2 | 2021-09-11 | Idaho | 14 | Indiana | 56 | Final | L | -42 |
| 3 | 2021-09-18 | Idaho | 0 | Oregon State | 42 | Final | L | -42 |
| 4 | 2021-10-02 | Idaho | 20 | UC-Davis | 27 | Final | L | -7 |
| 5 | 2021-10-09 | Portland State | 35 | Idaho | 42 | Final | W | 7 |
| 6 | 2021-10-16 | Idaho | 21 | Eastern Washington | 71 | Final | L | -50 |
| 7 | 2021-10-23 | Montana | 34 | Idaho | 14 | Final | L | -20 |
| 8 | 2021-10-30 | Northern Arizona | 38 | Idaho | 31 | Final | L | -7 |
| 9 | 2021-11-06 | Southern Utah | 24 | Idaho | 42 | Final | W | 18 |
| 10 | 2021-11-13 | Idaho | 13 | Montana State | 20 | Final | L | -7 |
| 11 | 2021-11-20 | Idaho | 14 | Idaho State | 0 | Final | W | 14 |