9 games in the PremovedPrep archive. Games as White.
| White | Black | Result | ECO | Event | Date |
|---|---|---|---|---|---|
| Demjen, Mark | Onodi, Tamas | 1/2-1/2 | B29 | HUN Youth tch | 2021-10-27 |
| Demjen, Mark | Geher, Koppany | 0-1 | D27 | HUN Youth tch | 2021-10-26 |
| Demjen, Mark | Geher, Koppany | 0-1 | D27 | HUN Youth tch | 2021-10-25 |
| Demjen, Mark | Levitan, Caleb Levi | 1/2-1/2 | B76 | First Saturday Nadassy Schev July 2021 | 2021-07-12 |
| Demjen, Mark | Levitan, Judah Nathan | 1-0 | A05 | First Saturday Nadassy Schev July 2021 | 2021-07-05 |
| Demjen, Mark | Bokorovics, Bertalan | 0-1 | B28 | First Saturday Nadassy Schev July 2021 | 2021-07-03 |