2018 Duke Blue Devils Third Down Conversion Defense Split Stats through 01/07/2019
| Split | G | Attempts | Conversions | Conversion % |
|---|---|---|---|---|
| All Games | 13 | 195 | 78 | 40.00 |
| at Home | 6 | 94 | 38 | 40.43 |
| on Road/Neutral Site | 7 | 101 | 40 | 39.60 |
| in Wins | 8 | 122 | 45 | 36.89 |
| in Losses | 5 | 73 | 33 | 45.21 |
| vs. Conference | 8 | 119 | 50 | 42.02 |
| vs. Non-Conference | 5 | 76 | 28 | 36.84 |
| vs. Ranked (AP) | 3 | 47 | 18 | 38.30 |
| vs. Unranked (AP) | 10 | 148 | 60 | 40.54 |
| vs. FBS (I-A) | 12 | 181 | 77 | 42.54 |
| vs. FCS (I-AA) | 1 | 14 | 1 | 7.14 |
| vs. FBS Winning | 9 | 142 | 62 | 43.66 |
| vs. FBS Non-Winning | 3 | 39 | 15 | 38.46 |
| vs. FBS Power 5 | 10 | 153 | 66 | 43.14 |
| vs. FBS non-Power 5 | 2 | 28 | 11 | 39.29 |
| in August/September | 5 | 78 | 28 | 35.90 |
| in October | 3 | 42 | 19 | 45.24 |
| in November | 4 | 61 | 25 | 40.98 |
| in December/January | 1 | 14 | 6 | 42.86 |