Ruben Vermaat
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NED-ch U20 | ??/??/1997 | 288 | Netherlands |
| Hengelo U20 | ??/??/1996 | 297 | Netherlands |
| NED-ch U20 | ??/??/1995 | 130 | Netherlands |
| Zwolle op-B | ??/??/1995 | 0 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| C50 | King's pawn game | 2 games |
| B06 | Robatsch (modern) defence | 1 games |
| C28 | Vienna game | 1 games |
| B21 | Sicilian, Grand Prix attack | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B13 | Caro-Kann, exchange variation | 2 games |
| B12 | Caro-Kann defence | 2 games |
| D53 | Queen's Gambit Declined, 4.Bg5 Be7 | 1 games |
| A42 | Modern defence, Averbakh system | 1 games |


Netherlands