2021 Washington State Cougars Opponent Penalty Split Stats through 01/10/2022
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 13 | 75 | 569 | 5.8 | 43.8 |
| at Home | 7 | 41 | 292 | 5.9 | 41.7 |
| on Road/Neutral Site | 6 | 34 | 277 | 5.7 | 46.2 |
| in Wins | 7 | 40 | 275 | 5.7 | 39.3 |
| in Losses | 6 | 35 | 294 | 5.8 | 49.0 |
| vs. Conference | 9 | 49 | 361 | 5.4 | 40.1 |
| vs. Non-Conference | 4 | 26 | 208 | 6.5 | 52.0 |
| vs. Ranked (AP) | 4 | 19 | 169 | 4.8 | 42.3 |
| vs. Unranked (AP) | 9 | 56 | 400 | 6.2 | 44.4 |
| vs. FBS (I-A) | 12 | 70 | 539 | 5.8 | 44.9 |
| vs. FCS (I-AA) | 1 | 5 | 30 | 5.0 | 30.0 |
| vs. FBS Winning | 7 | 38 | 309 | 5.4 | 44.1 |
| vs. FBS Non-Winning | 5 | 32 | 230 | 6.4 | 46.0 |
| vs. FBS Power 5 | 9 | 49 | 361 | 5.4 | 40.1 |
| vs. FBS non-Power 5 | 3 | 21 | 178 | 7.0 | 59.3 |
| in August/September | 4 | 22 | 183 | 5.5 | 45.8 |
| in October | 5 | 23 | 150 | 4.6 | 30.0 |
| in November | 3 | 19 | 146 | 6.3 | 48.7 |
| in December/January | 1 | 11 | 90 | 11.0 | 90.0 |