2021 Duke Blue Devils Fourth Down Conversion Defense Split Stats through 01/10/2022
| Split | G | Attempts | Conversions | Conversion % |
|---|---|---|---|---|
| All Games | 12 | 12 | 9 | 75.00 |
| at Home | 7 | 10 | 7 | 70.00 |
| on Road/Neutral Site | 5 | 2 | 2 | 100.00 |
| in Wins | 3 | 5 | 2 | 40.00 |
| in Losses | 9 | 7 | 7 | 100.00 |
| vs. Conference | 8 | 7 | 7 | 100.00 |
| vs. Non-Conference | 4 | 5 | 2 | 40.00 |
| vs. Ranked (AP) | 2 | 0 | 0 | - |
| vs. Unranked (AP) | 10 | 12 | 9 | 75.00 |
| vs. FBS (I-A) | 11 | 11 | 9 | 81.82 |
| vs. FCS (I-AA) | 1 | 1 | 0 | 0.00 |
| vs. FBS Winning | 3 | 3 | 3 | 100.00 |
| vs. FBS Non-Winning | 8 | 8 | 6 | 75.00 |
| vs. FBS Power 5 | 10 | 11 | 9 | 81.82 |
| vs. FBS non-Power 5 | 1 | 0 | 0 | - |
| in August/September | 4 | 5 | 2 | 40.00 |
| in October | 4 | 0 | 0 | - |
| in November | 4 | 7 | 7 | 100.00 |
| in December/January | 0 | 0 | 0 | - |