Gerard Donker
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Haarlem AKN | ??/??/1994 | 626 |  Netherlands |
| Haarlem AKN op | ??/??/1993 | 638 | Netherlands |
| Leiden op | 02/19/1993 | 2129 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| C07 | French, Tarrasch, open variation | 1 games |
| B93 | Sicilian, Najdorf, 6.f4 | 1 games |
| C17 | French, Winawer, advance variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D18 | Queen's Gambit Declined Slav, Dutch variation | 2 games |
| C43 | Petrov, modern (Steinitz) attack | 1 games |
| B14 | Caro-Kann, Panov-Botvinnik attack, 5...e6 | 1 games |
| C32 | King's Gambit Declined, Falkbeer, 5.de | 1 games |
