Male
FIDE ID:
Gregory Markzon
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 16th American Continental | 05/15/2023 | 2245 |  Dominican Republic |
| 50th Annual World Open | 06/30/2022 | 2183 |  United States |
| 46th Annual World Open | 07/04/2018 | 2276 | United States |
| 9th Philadelphia Open | 04/01/2015 | 2329 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| B33 | Sicilian defence | 5 games |
| B63 | Sicilian, Richter-Rauzer, Rauzer attack | 4 games |
| E97 | King's Indian, orthodox, Aronin-Taimanov variation (Yugoslav attack / Mar del Plata variation) | 4 games |
| B10 | Caro-Kann defence | 3 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B33 | Sicilian defence | 11 games |
| E94 | King's Indian, orthodox variation | 9 games |
| E83 | King's Indian, Saemisch, 6...Nc6 | 4 games |
| E92 | King's Indian, classical variation | 3 games |
