Male
FIDE ID:
Mark Van der Werf
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Dutch League 2025-26 | 09/20/2025 | 2345 |  Netherlands |
| TCh-NED Cup 2025 | 05/29/2025 | 2313 | Netherlands |
| TCh-NED Cup TB 2025 | 05/29/2025 | 2322 | Netherlands |
| Dutch League 2024-25 | 09/21/2024 | 2267 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| B22 | Sicilian, Alapin's variation (2.c3) | 16 games |
| E92 | King's Indian, classical variation | 10 games |
| D31 | Queen's Gambit Declined, 3.Nc3 | 8 games |
| E70 | King's Indian, 4.e4 | 7 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D31 | Queen's Gambit Declined, 3.Nc3 | 18 games |
| D30 | Queen's gambit declined | 17 games |
| B01 | Scandinavian (centre counter) defence | 17 games |
| B04 | Alekhine's defence, modern variation | 11 games |
