- classical
- 2428
- rapid
- 2446
- #842 in the world
- blitz
- 2424
Rating history
Openings
Download PGN (70)As White36 games · +24 =7 −5
- Nimzo-Indian Defense11 · 77%
- Queen's Gambit Declined5 · 80%
- Semi-Slav Defense4 · 88%
- Slav Defense2 · 50%
- Tarrasch Defense2 · 100%
- Grünfeld Defense1 · 100%
As Black34 games · +14 =13 −7
- Sicilian Defense13 · 58%
- Queen's Gambit Declined5 · 70%
- Queen's Pawn Game4 · 63%
- English Opening2 · 50%
- Zukertort Opening2 · 50%
- Nimzo-Indian Defense2 · 50%
70 stored games (Lichess broadcasts since 2023 and FIDE reports): +38 =20 −12 (69%). Score is from Koen's side.
Events
41st European Chess Club Cup 2026Open · Budva, Montenegro · 2026-10-17#2840/1Dutch Meesterklasse 2026-2027Netherlands · 2026-09-19#261½/2Dutch Open 2026 - Dutch Open2026-07-082½/4Open Dutch Rapid Championship 20262026-05-017½/9Dutch Klasse 1B 2025/262025-10-042/22. Bundesliga Nord in Mülheim an der Ruhr2025-12-061/2Dutch Open Championship 2025Open · 2025-07-165½/9Dutch Meesterklasse 2024-20252024-09-214½/7European Chess Club CupOpen Boards 67-162 · 2024-10-202½/4European Chess Club CupOpen Boards 163+ · 2024-10-201/1Dutch Open Championship 20242024-07-016/9Limburg Open 20232023-05-262/3European Chess Club CupOpen · 2024-10-010/127th HZ University of Applied Sciences2025-08-017/926th HZ University of Applied Sciences Chess Tournament 20242024-08-016/8
Games (70)
IMValentin Buckels2468Dutch Open Championship 2024 · Round 80Roger Labruyere2170Dutch Open Championship 2024 · Round 71WIMHanne Goossens217226th HZ University of Applied Sciences Chess Tournament 2024 · Round 91Marko Perestjuk217126th HZ University of Applied Sciences Chess Tournament 2024 · Round 81IMAzarya Jodi Setyaki237026th HZ University of Applied Sciences Chess Tournament 2024 · Round 70GMDaniel Howard Fernandez251926th HZ University of Applied Sciences Chess Tournament 2024 · Round 6½Rolinde Den Heijer198126th HZ University of Applied Sciences Chess Tournament 2024 · Round 51Abel Romkes207826th HZ University of Applied Sciences Chess Tournament 2024 · Round 2½Michael Schreidl190026th HZ University of Applied Sciences Chess Tournament 2024 · Round 11Kees Nieuwelink208426th HZ University of Applied Sciences Chess Tournament 2024 · Round 41FMLuuk Baselmans2345Dutch Open Championship 2024 · Round 91GMJergus Pechac2582European Chess Club Cup · Open · Round 40IMThomas Willemze2332Dutch Meesterklasse 2024-2025 · Round 31FMJonas Gallasch2309Dutch Meesterklasse 2024-2025 · Round 51IMMerijn Van Delft235927th HZ University of Applied Sciences · Round 91Joel Van der Werf211727th HZ University of Applied Sciences · Round 81GMPavel Eljanov268027th HZ University of Applied Sciences · Round 70Manuel Weller224627th HZ University of Applied Sciences · Round 61Sven Stange210727th HZ University of Applied Sciences · Round 51FMMichael Wunnink216727th HZ University of Applied Sciences · Round 4½FMTim Ronge228527th HZ University of Applied Sciences · Round 3½Jari Groen205427th HZ University of Applied Sciences · Round 21Fabian Alexander Czappa190127th HZ University of Applied Sciences · Round 11GMJorden Van Foreest271641st European Chess Club Cup 2026 · Open · Round 20FMAtakan Sirin2401Dutch Meesterklasse 2026-2027 · Round 1½WIMChitlange Sakshi2220Dutch Open 2026 - Dutch Open · Round 41Bryan Habig2077Dutch Open 2026 - Dutch Open · Round 31Kedem Gutkind2137Dutch Open 2026 - Dutch Open · Round 2½CMHrdya Dinanath2192Dutch Open 2026 - Dutch Open · Round 10Mees Van Batenburg2219Open Dutch Rapid Championship 2026 · Round 91FMJoey Grochal2226Open Dutch Rapid Championship 2026 · Round 8½GMJorge Viterbo Ferreira2435Open Dutch Rapid Championship 2026 · Round 71Sourav Bhattacharjee2094Open Dutch Rapid Championship 2026 · Round 61IMAnna Zatonskih2281Open Dutch Rapid Championship 2026 · Round 50IMHerman Grooten2197Open Dutch Rapid Championship 2026 · Round 41Rolinde Den Heijer2012Open Dutch Rapid Championship 2026 · Round 31Dies De Dreu1877Open Dutch Rapid Championship 2026 · Round 21Erick Moeri1738Open Dutch Rapid Championship 2026 · Round 11GMMartijn Dambacher2476Dutch Klasse 1B 2025/26 · Round 71GMDennis De Vreugt24302. Bundesliga Nord in Mülheim an der Ruhr · Round 5½