2015 Washington State Cougars Opponent Penalty Split Stats through 01/11/2016
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 13 | 95 | 784 | 7.3 | 60.3 |
| at Home | 6 | 38 | 325 | 6.3 | 54.2 |
| on Road/Neutral Site | 7 | 57 | 459 | 8.1 | 65.6 |
| in Wins | 9 | 72 | 593 | 8.0 | 65.9 |
| in Losses | 4 | 23 | 191 | 5.8 | 47.8 |
| vs. Conference | 9 | 62 | 461 | 6.9 | 51.2 |
| vs. Non-Conference | 4 | 33 | 323 | 8.3 | 80.8 |
| vs. Ranked (AP) | 2 | 9 | 79 | 4.5 | 39.5 |
| vs. Unranked (AP) | 11 | 86 | 705 | 7.8 | 64.1 |
| vs. FBS (I-A) | 12 | 90 | 723 | 7.5 | 60.3 |
| vs. FCS (I-AA) | 1 | 5 | 61 | 5.0 | 61.0 |
| vs. FBS Winning | 7 | 50 | 394 | 7.1 | 56.3 |
| vs. FBS Non-Winning | 5 | 40 | 329 | 8.0 | 65.8 |
| vs. FBS Power 5 | 11 | 82 | 666 | 7.5 | 60.5 |
| vs. FBS non-Power 5 | 1 | 8 | 57 | 8.0 | 57.0 |
| in August/September | 3 | 24 | 218 | 8.0 | 72.7 |
| in October | 5 | 29 | 220 | 5.8 | 44.0 |
| in November | 4 | 33 | 241 | 8.3 | 60.3 |
| in December/January | 1 | 9 | 105 | 9.0 | 105.0 |