Jaap Den Besten
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Groningen SO ON op-B | 12/??/2000 | 45 | Netherlands |
| Zwolle KPMG op-B | 03/??/2000 | 1652 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| D02 | Queen's pawn game | 1 games |
| A46 | Queen's pawn game | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D10 | Queen's Gambit Declined Slav defence | 1 games |
| B01 | Scandinavian (centre counter) defence | 1 games |


Netherlands