2018 BYU Cougars Fourth Down Conversion Defense Split Stats through 01/07/2019
| Split | G | Attempts | Conversions | Conversion % |
|---|---|---|---|---|
| All Games | 13 | 24 | 14 | 58.33 |
| at Home | 6 | 10 | 5 | 50.00 |
| on Road/Neutral Site | 7 | 14 | 9 | 64.29 |
| in Wins | 7 | 16 | 9 | 56.25 |
| in Losses | 6 | 8 | 5 | 62.50 |
| vs. Conference | 2 | 1 | 0 | 0.00 |
| vs. Non-Conference | 11 | 23 | 14 | 60.87 |
| vs. Ranked (AP) | 3 | 3 | 2 | 66.67 |
| vs. Unranked (AP) | 10 | 21 | 12 | 57.14 |
| vs. FBS (I-A) | 12 | 22 | 13 | 59.09 |
| vs. FCS (I-AA) | 1 | 2 | 1 | 50.00 |
| vs. FBS Winning | 9 | 19 | 11 | 57.89 |
| vs. FBS Non-Winning | 3 | 3 | 2 | 66.67 |
| vs. FBS Power 5 | 5 | 9 | 7 | 77.78 |
| vs. FBS non-Power 5 | 7 | 13 | 6 | 46.15 |
| in August/September | 5 | 9 | 6 | 66.67 |
| in October | 3 | 6 | 3 | 50.00 |
| in November | 4 | 5 | 3 | 60.00 |
| in December/January | 1 | 4 | 2 | 50.00 |