2021 Iowa Hawkeyes Opponent Penalty Split Stats through 01/10/2022
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 14 | 86 | 718 | 6.1 | 51.3 |
| at Home | 7 | 49 | 403 | 7.0 | 57.6 |
| on Road/Neutral Site | 7 | 37 | 315 | 5.3 | 45.0 |
| in Wins | 10 | 72 | 595 | 7.2 | 59.5 |
| in Losses | 4 | 14 | 123 | 3.5 | 30.8 |
| vs. Conference | 10 | 66 | 572 | 6.6 | 57.2 |
| vs. Non-Conference | 4 | 20 | 146 | 5.0 | 36.5 |
| vs. Ranked (AP) | 2 | 7 | 70 | 3.5 | 35.0 |
| vs. Unranked (AP) | 12 | 79 | 648 | 6.6 | 54.0 |
| vs. FBS (I-A) | 14 | 86 | 718 | 6.1 | 51.3 |
| vs. FCS (I-AA) | 0 | 0 | 0 | - | - |
| vs. FBS Winning | 8 | 43 | 339 | 5.4 | 42.4 |
| vs. FBS Non-Winning | 6 | 43 | 379 | 7.2 | 63.2 |
| vs. FBS Power 5 | 12 | 73 | 617 | 6.1 | 51.4 |
| vs. FBS non-Power 5 | 2 | 13 | 101 | 6.5 | 50.5 |
| in August/September | 4 | 24 | 193 | 6.0 | 48.3 |
| in October | 4 | 27 | 194 | 6.8 | 48.5 |
| in November | 4 | 28 | 261 | 7.0 | 65.3 |
| in December/January | 2 | 7 | 70 | 3.5 | 35.0 |