2021 Duke Blue Devils Penalty Split Stats through 01/10/2022
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 12 | 78 | 740 | 6.5 | 61.7 |
| at Home | 7 | 46 | 452 | 6.6 | 64.6 |
| on Road/Neutral Site | 5 | 32 | 288 | 6.4 | 57.6 |
| in Wins | 3 | 23 | 238 | 7.7 | 79.3 |
| in Losses | 9 | 55 | 502 | 6.1 | 55.8 |
| vs. Conference | 8 | 50 | 467 | 6.3 | 58.4 |
| vs. Non-Conference | 4 | 28 | 273 | 7.0 | 68.3 |
| vs. Ranked (AP) | 2 | 10 | 90 | 5.0 | 45.0 |
| vs. Unranked (AP) | 10 | 68 | 650 | 6.8 | 65.0 |
| vs. FBS (I-A) | 11 | 71 | 671 | 6.5 | 61.0 |
| vs. FCS (I-AA) | 1 | 7 | 69 | 7.0 | 69.0 |
| vs. FBS Winning | 3 | 18 | 172 | 6.0 | 57.3 |
| vs. FBS Non-Winning | 8 | 53 | 499 | 6.6 | 62.4 |
| vs. FBS Power 5 | 10 | 66 | 636 | 6.6 | 63.6 |
| vs. FBS non-Power 5 | 1 | 5 | 35 | 5.0 | 35.0 |
| in August/September | 4 | 28 | 273 | 7.0 | 68.3 |
| in October | 4 | 26 | 243 | 6.5 | 60.8 |
| in November | 4 | 24 | 224 | 6.0 | 56.0 |
| in December/January | 0 | 0 | 0 | - | - |