J. Heyduk
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| CZE-chT2 | ??/??/1999 | 1157 |  Czech Republic |
Most Played Openings as White
| ECO | Opening | Games |
| C40 | King's knight opening | 1 games |
| B45 | Sicilian, Taimanov variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B40 | Sicilian defence | 1 games |
| A24 | English, Bremen system with ...g6 | 1 games |
