2009 Duke Blue Devils Penalty Split Stats through 01/07/2010
| Split | G | Pen. | Yards | Pen./G | Yards/G |
|---|---|---|---|---|---|
| All Games | 12 | 59 | 530 | 4.9 | 44.2 |
| at Home | 6 | 36 | 311 | 6.0 | 51.8 |
| on Road/Neutral Site | 6 | 23 | 219 | 3.8 | 36.5 |
| in Wins | 5 | 32 | 277 | 6.4 | 55.4 |
| in Losses | 7 | 27 | 253 | 3.9 | 36.1 |
| vs. Conference | 8 | 41 | 369 | 5.1 | 46.1 |
| vs. Non-Conference | 4 | 18 | 161 | 4.5 | 40.3 |
| vs. Ranked (AP) | 3 | 12 | 82 | 4.0 | 27.3 |
| vs. Unranked (AP) | 9 | 47 | 448 | 5.2 | 49.8 |
| vs. FBS (I-A) | 10 | 50 | 459 | 5.0 | 45.9 |
| vs. FCS (I-AA) | 2 | 9 | 71 | 4.5 | 35.5 |
| vs. FBS Winning | 4 | 16 | 127 | 4.0 | 31.8 |
| vs. FBS Non-Winning | 6 | 34 | 332 | 5.7 | 55.3 |
| vs. BCS AQ | 9 | 45 | 414 | 5.0 | 46.0 |
| vs. BCS non-AQ | 1 | 5 | 45 | 5.0 | 45.0 |
| in August/September | 4 | 18 | 161 | 4.5 | 40.3 |
| in October | 4 | 28 | 229 | 7.0 | 57.3 |
| in November | 4 | 13 | 140 | 3.3 | 35.0 |
| in December/January | 0 | 0 | 0 | - | - |