2018 Purdue Boilermakers Third Down Conversion Defense Split Stats through 01/07/2019
| Split | G | Attempts | Conversions | Conversion % |
|---|---|---|---|---|
| All Games | 13 | 184 | 67 | 36.41 |
| at Home | 7 | 105 | 38 | 36.19 |
| on Road/Neutral Site | 6 | 79 | 29 | 36.71 |
| in Wins | 6 | 87 | 33 | 37.93 |
| in Losses | 7 | 97 | 34 | 35.05 |
| vs. Conference | 9 | 130 | 49 | 37.69 |
| vs. Non-Conference | 4 | 54 | 18 | 33.33 |
| vs. Ranked (AP) | 3 | 53 | 24 | 45.28 |
| vs. Unranked (AP) | 10 | 131 | 43 | 32.82 |
| vs. FBS (I-A) | 13 | 184 | 67 | 36.41 |
| vs. FCS (I-AA) | 0 | 0 | 0 | - |
| vs. FBS Winning | 10 | 145 | 55 | 37.93 |
| vs. FBS Non-Winning | 3 | 39 | 12 | 30.77 |
| vs. FBS Power 5 | 12 | 172 | 64 | 37.21 |
| vs. FBS non-Power 5 | 1 | 12 | 3 | 25.00 |
| in August/September | 5 | 69 | 21 | 30.43 |
| in October | 3 | 51 | 20 | 39.22 |
| in November | 4 | 50 | 19 | 38.00 |
| in December/January | 1 | 14 | 7 | 50.00 |