Ramon Koster
Country
NED
Birth Year
1983
Gender
M
Title
FIDE Master
FIDE ID
1008544
FIDE rating history
View rating lists
Available Games
Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-10-04 (UTC).
| # | Date | Event | Site | Round | White | Black | Result | Moves | View |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2026-09-19 | Dutch League 2026-27 | Netherlands NED | 1.5 | Koster,R | Dovgaliuk,Oleksandr | 0-1 | 29 | Open |
| 2 | 2026-09-19 | Dutch Meesterklasse 2026-2027 | Netherlands | 1.5 | Koster, Ramon | Dovgaliuk, Oleksandr | 0-1 | 29 | Open 🎥 |
| 3 | 2026-08-29 | Maia Chess Open 2026 | Maia POR | 9.9 | Koster,R | Goncalves,Samuel Jesus P | 0-1 | 46 | Open |
| 4 | 2026-08-28 | Maia Chess Open 2026 | Maia POR | 8.1 | Gonzalez Pinar,Adrian | Koster,R | 0-1 | 25 | Open |
| 5 | 2026-08-27 | Maia Chess Open 2026 | Maia POR | 7.4 | Koster,R | Janzelj,T | 0-1 | 38 | Open |
| 6 | 2026-08-26 | Maia Chess Open 2026 | Maia POR | 6.16 | Gennari,Jacopo | Koster,R | 0-1 | 42 | Open |
| 7 | 2026-08-25 | Maia Chess Open 2026 | Maia POR | 5.22 | Koster,R | Garcia Sobrino,David | 1-0 | 39 | Open |
| 8 | 2026-08-24 | Maia Chess Open 2026 | Maia POR | 4.18 | Arvola,Daniel | Koster,R | 1/2-1/2 | 36 | Open |
| 9 | 2026-08-23 | Maia Chess Open 2026 | Maia POR | 3.2 | Koster,R | Haug,Havard | 0-1 | 54 | Open |
| 10 | 2026-08-22 | Maia Chess Open 2026 | Maia POR | 2.21 | Woods,Yannick | Koster,R | 0-1 | 45 | Open |
| 11 | 2026-08-21 | Maia Chess Open 2026 | Maia POR | 1.22 | Koster,R | Kamp,Aaron | 1-0 | 33 | Open |
| 12 | 2026-02-15 | Djerba Open A 2026 | Djerba TUN | 9.3 | Cai,Chaoruo | Koster,R | 0-1 | 53 | Open |
| 13 | 2026-02-14 | Djerba Open A 2026 | Djerba TUN | 8.3 | Koster,R | Bourg,Nicolas | 1-0 | 60 | Open |
| 14 | 2026-02-13 | Djerba Open A 2026 | Djerba TUN | 7.4 | Koster,R | Minde,Baptiste | 1-0 | 37 | Open |
| 15 | 2026-02-13 | Djerba Open A 2026 | Djerba TUN | 6.1 | Moussard,J | Koster,R | 1-0 | 37 | Open |
| 16 | 2026-02-12 | Djerba Open A 2026 | Djerba TUN | 5.4 | Berend,E | Koster,R | 1/2-1/2 | 25 | Open |
| 17 | 2026-02-10 | Djerba Open A 2026 | Djerba TUN | 4.2 | Koster,R | Achour,Mohamed Anis | 1/2-1/2 | 36 | Open |
| 18 | 2026-02-10 | Djerba Open A 2026 | Djerba TUN | 3.2 | Zaibi,A | Koster,R | 1-0 | 35 | Open |
| 19 | 2026-02-09 | Djerba Open A 2026 | Djerba TUN | 2.3 | Koster,R | Liu,Huaqi | 1-0 | 65 | Open |
| 20 | 2026-02-08 | Djerba Open A 2026 | Djerba TUN | 1.3 | Ahmed Bouzidi | Ramon Koster | 0-1 | 62 | Open |
| 21 | 2025-12-30 | 61st Groningen Open 2025 | Groningen NED | 9.14 | Ramon Koster | Dylan Edwardss | 1-0 | 30 | Open |
| 22 | 2025-12-29 | 61st Groningen Open 2025 | Groningen NED | 8.8 | Ramon Koster | Shyaam Nikhil P | 0-1 | 49 | Open |
| 23 | 2025-12-28 | 61st Groningen Open 2025 | Groningen NED | 7.12 | Sanjay Narayanan P S | Ramon Koster | 0-1 | 68 | Open |
| 24 | 2025-12-27 | 61st Groningen Open 2025 | Groningen NED | 6.16 | Ramon Koster | Joost Wempe | 1-0 | 30 | Open |
| 25 | 2025-12-26 | 61st Groningen Open 2025 | Groningen NED | 5.15 | Emil Frederick Schuricht | Ramon Koster | 1/2-1/2 | 49 | Open |
| 26 | 2025-12-24 | 61st Groningen Open 2025 | Groningen NED | 4.17 | Ramon Koster | Rick Duijker | 1/2-1/2 | 57 | Open |
| 27 | 2025-12-23 | 61st Groningen Open 2025 | Groningen NED | 3.1 | Saad Abobaker Elmi | Ramon Koster | 1-0 | 41 | Open |
| 28 | 2025-12-22 | 61st Groningen Open 2025 | Groningen NED | 2.7 | Ramon Koster | Eelke De Boer | 1/2-1/2 | 17 | Open |
| 29 | 2025-12-21 | 61st Groningen Open 2025 | Groningen NED | 1.24 | Khandhadia Nivaan Rathin | Ramon Koster | 0-1 | 42 | Open |
| 30 | 2025-12-03 | 15th London Classic Open | London ENG | 9.36 | Nurlykhan Kudaibergen | Ramon Koster | 0-1 | 49 | Open |
| 31 | 2025-12-02 | 15th London Classic Open | London ENG | 8.27 | Ramon Koster | Filip Magold | 0-1 | 75 | Open |
| 32 | 2025-12-01 | 15th London Classic Open | London ENG | 7.37 | Ramon Koster | Maxim Farberov | 1-0 | 47 | Open |
| 33 | 2025-11-30 | 15th London Classic Open | London ENG | 6.32 | Qixiang Han | Ramon Koster | 1-0 | 83 | Open |
| 34 | 2025-11-30 | 15th London Classic Open | London ENG | 5.37 | Ramon Koster | Hayk Mesropyan | 1-0 | 45 | Open |
| 35 | 2025-11-29 | 15th London Classic Open | London ENG | 4.5 | S. Badrinath | Ramon Koster | 0-1 | 39 | Open |
| 36 | 2025-11-28 | 15th London Classic Open | London ENG | 3.51 | Ramon Koster | Rithvik Deepak Ambattu | 1/2-1/2 | 60 | Open |
| 37 | 2025-11-28 | 15th London Classic Open | London ENG | 2.4 | Peter Carroll | Ramon Koster | 1-0 | 60 | Open |
| 38 | 2025-11-27 | 15th London Classic Open | London ENG | 1.3 | Ramon Koster | Daniil Yuffa | 0-1 | 56 | Open |
| 39 | 2025-08-30 | Maia Chess Open 2025 | Maia POR | 9.21 | Narmin Mammadova | Ramon Koster | 1-0 | 59 | Open |
| 40 | 2025-08-29 | Maia Chess Open 2025 | Maia POR | 8.26 | Ramon Koster | Andres Rodriguez Ferreiros | 1-0 | 41 | Open |
| 41 | 2025-08-28 | Maia Chess Open 2025 | Maia POR | 7.24 | Kuzey Guleryuz | Ramon Koster | 1-0 | 28 | Open |
| 42 | 2025-08-27 | Maia Chess Open 2025 | Maia POR | 6.3 | Ramon Koster | Martin Gomez Carreno | 1-0 | 39 | Open |
| 43 | 2025-08-26 | Maia Chess Open 2025 | Maia POR | 5.8 | Ilia Smirin | Ramon Koster | 1-0 | 34 | Open |
| 44 | 2025-08-25 | Maia Chess Open 2025 | Maia POR | 4.8 | Ramon Koster | Pierre Bailet | 1/2-1/2 | 43 | Open |
| 45 | 2025-08-24 | Maia Chess Open 2025 | Maia POR | 3.27 | Xin An Zhang | Ramon Koster | 0-1 | 34 | Open |
| 46 | 2025-08-23 | Maia Chess Open 2025 | Maia POR | 2.5 | Ramon Koster | Michael Takahashi | 1/2-1/2 | 38 | Open |
| 47 | 2025-08-22 | Maia Chess Open 2025 | Maia POR | 1.19 | Manuel Anxo Cabanas Lopez | Ramon Koster | 0-1 | 59 | Open |
| 48 | 2025-07-13 | Science Park Open A 2025 | Amsterdam NED | 9.3 | Ramon Koster | Sasa Albers | 1/2-1/2 | 32 | Open |
| 49 | 2025-07-12 | Science Park Open A 2025 | Amsterdam NED | 8.3 | Khoi Pham | Ramon Koster | 1/2-1/2 | 32 | Open |
| 50 | 2025-07-11 | Science Park Open A 2025 | Amsterdam NED | 7.2 | Ramon Koster | Nico Zwirs | 1/2-1/2 | 36 | Open |
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