Marvin Dekker
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| 39th Olympiad Men | 09/21/2010 | 2055 | Russian Federation |
| 38th Olympiad | 11/13/2008 | 2152 | Germany |
| Calvia ol (Men) | 10/15/2004 | 2143 | Spain |
| Curacao op | 10/25/2003 | 1776 | Netherlands Antilles |
Most Played Openings as White
| ECO | Opening | Games |
| A00 | Polish (Sokolsky) opening | 8 games |
| E87 | King's Indian, Saemisch, orthodox, 7.d5 | 2 games |
| E14 | Queen's Indian, 4.e3 | 1 games |
| A34 | English, symmetrical variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B02 | Alekhine's defence | 3 games |
| B03 | Alekhine's defence | 3 games |
| B87 | Sicilian, Sozin with ...a6 and ...b5 | 2 games |
| B90 | Sicilian, Najdorf | 2 games |
Male
FIDE ID:

Russian Federation
Germany
Spain
Netherlands Antilles