Derk Overduin
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NED-ch U16 op | 08/07/2000 | 0 | Netherlands |
| NED U14 op | ??/??/1999 | 0 | Netherlands |
| Orange op | ??/??/1993 | 564 | France |
Most Played Openings as White
| ECO | Opening | Games |
| B50 | Sicilian | 2 games |
| C00 | French defence | 2 games |
| B07 | Pirc defence | 1 games |
| C02 | French, advance variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D09 | Queen's Gambit Declined, Albin counter-gambit, 5.g3 | 1 games |
| C50 | King's pawn game | 1 games |
| C21 | Centre game | 1 games |
| C22 | Centre game | 1 games |


Netherlands
France