2018 Iowa Hawkeyes Opponent Penalty Split Stats through 01/07/2019
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 13 | 78 | 728 | 6.0 | 56.0 |
| at Home | 7 | 39 | 354 | 5.6 | 50.6 |
| on Road/Neutral Site | 6 | 39 | 374 | 6.5 | 62.3 |
| in Wins | 9 | 53 | 513 | 5.9 | 57.0 |
| in Losses | 4 | 25 | 215 | 6.3 | 53.8 |
| vs. Conference | 9 | 53 | 473 | 5.9 | 52.6 |
| vs. Non-Conference | 4 | 25 | 255 | 6.3 | 63.8 |
| vs. Ranked (AP) | 2 | 11 | 87 | 5.5 | 43.5 |
| vs. Unranked (AP) | 11 | 67 | 641 | 6.1 | 58.3 |
| vs. FBS (I-A) | 12 | 75 | 693 | 6.3 | 57.8 |
| vs. FCS (I-AA) | 1 | 3 | 35 | 3.0 | 35.0 |
| vs. FBS Winning | 7 | 43 | 385 | 6.1 | 55.0 |
| vs. FBS Non-Winning | 5 | 32 | 308 | 6.4 | 61.6 |
| vs. FBS Power 5 | 11 | 68 | 628 | 6.2 | 57.1 |
| vs. FBS non-Power 5 | 1 | 7 | 65 | 7.0 | 65.0 |
| in August/September | 4 | 25 | 233 | 6.3 | 58.3 |
| in October | 4 | 24 | 202 | 6.0 | 50.5 |
| in November | 4 | 21 | 203 | 5.3 | 50.8 |
| in December/January | 1 | 8 | 90 | 8.0 | 90.0 |