2021 Western Michigan Broncos Opponent Penalty Split Stats through 01/10/2022
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 13 | 79 | 734 | 6.1 | 56.5 |
| at Home | 6 | 45 | 401 | 7.5 | 66.8 |
| on Road/Neutral Site | 7 | 34 | 333 | 4.9 | 47.6 |
| in Wins | 8 | 52 | 479 | 6.5 | 59.9 |
| in Losses | 5 | 27 | 255 | 5.4 | 51.0 |
| vs. Conference | 8 | 49 | 443 | 6.1 | 55.4 |
| vs. Non-Conference | 5 | 30 | 291 | 6.0 | 58.2 |
| vs. Ranked (AP) | 2 | 13 | 130 | 6.5 | 65.0 |
| vs. Unranked (AP) | 11 | 66 | 604 | 6.0 | 54.9 |
| vs. FBS (I-A) | 12 | 73 | 682 | 6.1 | 56.8 |
| vs. FCS (I-AA) | 1 | 6 | 52 | 6.0 | 52.0 |
| vs. FBS Winning | 7 | 37 | 357 | 5.3 | 51.0 |
| vs. FBS Non-Winning | 5 | 36 | 325 | 7.2 | 65.0 |
| vs. FBS Power 5 | 2 | 13 | 130 | 6.5 | 65.0 |
| vs. FBS non-Power 5 | 10 | 60 | 552 | 6.0 | 55.2 |
| in August/September | 4 | 27 | 256 | 6.8 | 64.0 |
| in October | 4 | 23 | 243 | 5.8 | 60.8 |
| in November | 4 | 26 | 200 | 6.5 | 50.0 |
| in December/January | 1 | 3 | 35 | 3.0 | 35.0 |