2021 Purdue Boilermakers Opponent Penalty Split Stats through 01/10/2022
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 13 | 77 | 699 | 5.9 | 53.8 |
| at Home | 6 | 35 | 330 | 5.8 | 55.0 |
| on Road/Neutral Site | 7 | 42 | 369 | 6.0 | 52.7 |
| in Wins | 9 | 52 | 454 | 5.8 | 50.4 |
| in Losses | 4 | 25 | 245 | 6.3 | 61.3 |
| vs. Conference | 9 | 43 | 440 | 4.8 | 48.9 |
| vs. Non-Conference | 4 | 34 | 259 | 8.5 | 64.8 |
| vs. Ranked (AP) | 4 | 22 | 209 | 5.5 | 52.3 |
| vs. Unranked (AP) | 9 | 55 | 490 | 6.1 | 54.4 |
| vs. FBS (I-A) | 13 | 77 | 699 | 5.9 | 53.8 |
| vs. FCS (I-AA) | 0 | 0 | 0 | - | - |
| vs. FBS Winning | 8 | 56 | 521 | 7.0 | 65.1 |
| vs. FBS Non-Winning | 5 | 21 | 178 | 4.2 | 35.6 |
| vs. FBS Power 5 | 11 | 65 | 618 | 5.9 | 56.2 |
| vs. FBS non-Power 5 | 2 | 12 | 81 | 6.0 | 40.5 |
| in August/September | 4 | 21 | 141 | 5.3 | 35.3 |
| in October | 4 | 19 | 200 | 4.8 | 50.0 |
| in November | 4 | 23 | 230 | 5.8 | 57.5 |
| in December/January | 1 | 14 | 128 | 14.0 | 128.0 |