2021 Duke Blue Devils Opponent Penalty Split Stats through 01/10/2022
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 12 | 77 | 643 | 6.4 | 53.6 |
| at Home | 7 | 40 | 348 | 5.7 | 49.7 |
| on Road/Neutral Site | 5 | 37 | 295 | 7.4 | 59.0 |
| in Wins | 3 | 16 | 165 | 5.3 | 55.0 |
| in Losses | 9 | 61 | 478 | 6.8 | 53.1 |
| vs. Conference | 8 | 52 | 413 | 6.5 | 51.6 |
| vs. Non-Conference | 4 | 25 | 230 | 6.3 | 57.5 |
| vs. Ranked (AP) | 2 | 11 | 87 | 5.5 | 43.5 |
| vs. Unranked (AP) | 10 | 66 | 556 | 6.6 | 55.6 |
| vs. FBS (I-A) | 11 | 71 | 583 | 6.5 | 53.0 |
| vs. FCS (I-AA) | 1 | 6 | 60 | 6.0 | 60.0 |
| vs. FBS Winning | 3 | 16 | 117 | 5.3 | 39.0 |
| vs. FBS Non-Winning | 8 | 55 | 466 | 6.9 | 58.3 |
| vs. FBS Power 5 | 10 | 62 | 518 | 6.2 | 51.8 |
| vs. FBS non-Power 5 | 1 | 9 | 65 | 9.0 | 65.0 |
| in August/September | 4 | 25 | 230 | 6.3 | 57.5 |
| in October | 4 | 23 | 178 | 5.8 | 44.5 |
| in November | 4 | 29 | 235 | 7.3 | 58.8 |
| in December/January | 0 | 0 | 0 | - | - |