IMMark Van der Werf
NED · FIDE ID 1000470 · 135 tournament games since 2021
Standard
2378
#55 in NED (active)
Rapid
2387
#33 in NED (active)
Blitz
2337
#66 in NED (active)
Score
58%
47 W · 62 D · 26 L
Opp. avg
2257
Last 50 games
Last game
2026-09-19
Dutch Meesterklasse 2026-2027
Prep summary
- As White: 1.d4 in 78% of games (scores 63%).
- Against 1.e4: 1...e5 in 24 of 28 games (King's Pawn Game), scoring 44%.
- Against 1.d4: 1...Nf6 in 24 of 27 games (Indian Defense), scoring 58%.
- Comfort zone: King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System as White, 67% in 6 games.
- By opponent strength: 39% against higher-rated players, 69% against lower-rated.
- Drawish: 46% of games end in a draw.
Based on 135 over-the-board games (23 classical · 17 rapid · 16 blitz). 68 with White (62%), 67 with Black (54%).
Openings as White
First move
| 1.d4 | 53 | 63% |
| 1.Nf3 | 8 | 56% |
| 1.c4 | 6 | 58% |
| 1.e4 | 1 | 50% |
Most played
| Opening | Games | Score |
|---|---|---|
| Queen's Gambit Declined: Exchange Variation, Positional Variation | 7 | 64% |
| King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | 6 | 67% |
| Slav Defense | 3 | 67% |
| Queen's Gambit Declined: Modern Variation | 3 | 50% |
| Nimzo-Indian Defense: Normal Variation, Botvinnik System | 3 | 50% |
Openings as Black
Against 1.e4 (28 games)
| 1...e5 King's Pawn Game | 24 | 44% |
| 1...d5 Scandinavian Defense | 3 | 67% |
| 1...c5 Sicilian Defense | 1 | 100% |
Against 1.d4 (27 games)
| 1...Nf6 Indian Defense | 24 | 58% |
| 1...d5 Queen's Pawn Game | 2 | 25% |
| 1...d6 Queen's Pawn Game | 1 | 50% |
Most played
| Opening | Games | Score |
|---|---|---|
| Ruy Lopez: Closed | 4 | 75% |
| Bishop's Opening: Vienna Hybrid, Spielmann Attack | 3 | 50% |
| Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | 2 | 25% |
| Nimzo-Indian Defense: Kmoch Variation | 2 | 50% |
| Indian Defense: Pseudo-Benko | 2 | 50% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-09-19 | Jacob Dreelinck (2375) Dutch Meesterklasse 2026-2027 | ½ |
| 2026-09-03 | Malcolm Pein (2243) European Senior Team Championships 2026 | Senior 50+ | ½ |
| 2026-09-02 | Martin Mrva (2362) European Senior Team Championships 2026 | Senior 50+ | W |
| 2026-09-01 | Alberto David (2454) European Senior Team Championships 2026 | Senior 50+ | ½ |
| 2026-08-31 | Hannes Ganaus (2214) European Senior Team Championships 2026 | Senior 50+ | W |
| 2026-08-30 | Marc Kirszenberg (2078) European Senior Team Championships 2026 | Senior 50+ | ½ |
| 2026-08-29 | Yaron Linik (1932) European Senior Team Championships 2026 | Senior 50+ | W |
| 2026-08-28 | Daniel W Gormally (2393) European Senior Team Championships 2026 | Senior 50+ | L |
| 2026-08-27 | Uberto Delprato (2024) European Senior Team Championships 2026 | Senior 50+ | W |
| 2026-06-10 | John Delaney (2054) European Senior Chess Championship 2026 | 50+ | W |
Data: FIDE rating list (October 2026 list; national ranks count active players) and tournament games broadcast on Lichess since 2020 (open data, CC0). Results are matched to FIDE players by name or FIDE ID and may be incomplete. This page shows public chess results only. Is this you and you want the page removed? Email chessmoose1@gmail.com and we remove it.