M. Duinmaijer
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| ACCOM-B op | ??/??/1985 | 0 | Netherlands |
| Alkmaar op | ??/??/1984 | 0 | Netherlands |
| Alkmaar op-B | ??/??/1983 | 0 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| B12 | Caro-Kann defence | 2 games |
| B22 | Sicilian, Alapin's variation (2.c3) | 2 games |
| C44 | King's pawn game | 2 games |
| B03 | Alekhine's defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 3 games |
| A45 | Queen's pawn game | 1 games |
| A37 | English, symmetrical variation | 1 games |
| A17 | English opening | 1 games |


Netherlands