Jan Havenaar
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Guernsey Open | 10/19/2008 | 1869 | Guernsey |
| Guernsey op 32nd | 10/15/2006 | 1496 | Guernsey |
| Guernsey op 31st | 10/16/2005 | 1665 | Guernsey |
| Guernsey op | 10/03/2004 | 1782 | Guernsey |
Most Played Openings as White
| ECO | Opening | Games |
| A00 | Polish (Sokolsky) opening | 15 games |
| B23 | Sicilian, closed | 4 games |
| B06 | Robatsch (modern) defence | 2 games |
| C56 | Two knights defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B29 | Sicilian, Nimzovich-Rubinstein variation | 7 games |
| B07 | Pirc defence | 2 games |
| A42 | Modern defence, Averbakh system | 2 games |
| A46 | Queen's pawn game | 2 games |
Netherlands
Male
FIDE ID:

Guernsey