2018 Oregon State Beavers Fourth Down Conversion Defense Split Stats through 01/07/2019
| Split | G | Attempts | Conversions | Conversion % |
|---|---|---|---|---|
| All Games | 12 | 22 | 14 | 63.64 |
| at Home | 6 | 13 | 9 | 69.23 |
| on Road/Neutral Site | 6 | 9 | 5 | 55.56 |
| in Wins | 2 | 6 | 1 | 16.67 |
| in Losses | 10 | 16 | 13 | 81.25 |
| vs. Conference | 9 | 17 | 12 | 70.59 |
| vs. Non-Conference | 3 | 5 | 2 | 40.00 |
| vs. Ranked (AP) | 3 | 4 | 3 | 75.00 |
| vs. Unranked (AP) | 9 | 18 | 11 | 61.11 |
| vs. FBS (I-A) | 11 | 18 | 13 | 72.22 |
| vs. FCS (I-AA) | 1 | 4 | 1 | 25.00 |
| vs. FBS Winning | 8 | 13 | 10 | 76.92 |
| vs. FBS Non-Winning | 3 | 5 | 3 | 60.00 |
| vs. FBS Power 5 | 10 | 18 | 13 | 72.22 |
| vs. FBS non-Power 5 | 1 | 0 | 0 | - |
| in August/September | 5 | 9 | 5 | 55.56 |
| in October | 3 | 6 | 3 | 50.00 |
| in November | 4 | 7 | 6 | 85.71 |
| in December/January | 0 | 0 | 0 | - |