Marc Jonker
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| TCh-NED 2009-10 | 09/26/2009 | 2227 | Netherlands |
| NRW Class2 0506 | 09/25/2005 | 2157 | Germany |
| NED-chT 0506 | 09/24/2005 | 2311 | Netherlands |
| Muensterland Verbandsliga 0405 | 09/18/2004 | 1896 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B50 | Sicilian | 11 games |
| C26 | Vienna, Falkbeer variation | 9 games |
| B44 | Sicilian defence | 5 games |
| B33 | Sicilian defence | 4 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B07 | Pirc defence | 33 games |
| B06 | Robatsch (modern) defence | 14 games |
| A41 | Queen's Pawn | 6 games |
| A53 | Old Indian defence | 4 games |
Netherlands
Male
FIDE ID:

Germany