FMRamon Koster
NED · FIDE ID 1008544 · 74 tournament games since 2024
Standard
2292
#136 in NED (active)
Rapid
2287
#70 in NED (active)
Blitz
2336
#68 in NED (active)
Score
58%
36 W · 14 D · 24 L
Opp. avg
2185
Last 50 games
Last game
2026-09-22
Dutch Meesterklasse 2026-2027
Prep summary
- As White: 1.d4 in 95% of games (scores 61%).
- Against 1.e4: 1...c5 in 14 of 19 games (Sicilian Defense), scoring 39%.
- Against 1.d4: 1...d5 in 9 of 14 games (Queen's Pawn Game), scoring 61%.
- Comfort zone: Slav Defense: Modern Line as Black, 83% in 3 games.
- By opponent strength: 8% against higher-rated players, 72% against lower-rated.
Based on 74 over-the-board games (15 classical). 39 with White (60%), 35 with Black (56%).
Openings as White
First move
| 1.d4 | 37 | 61% |
| 1.e4 | 1 | 0% |
| 1.Nf3 | 1 | 100% |
Most played
| Opening | Games | Score |
|---|---|---|
| Nimzo-Indian Defense: Normal Variation | 5 | 50% |
| Benko Gambit Accepted: Modern Variation | 4 | 63% |
| Benoni Defense: King's Pawn Line | 2 | 75% |
| King's Indian Defense: Semi-Averbakh System | 2 | 25% |
| Queen's Gambit Declined: Exchange Variation, Positional Variation | 2 | 25% |
Openings as Black
Against 1.e4 (19 games)
| 1...c5 Sicilian Defense | 14 | 39% |
| 1...c6 Caro-Kann Defense | 4 | 75% |
| 1...e5 King's Pawn Game | 1 | 50% |
Against 1.d4 (14 games)
| 1...d5 Queen's Pawn Game | 9 | 61% |
| 1...Nf6 Indian Defense | 5 | 80% |
Most played
| Opening | Games | Score |
|---|---|---|
| Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | 3 | 67% |
| Slav Defense: Modern Line | 3 | 83% |
| Catalan Opening: Open Defense, Classical Line | 2 | 100% |
| Slav Defense: Czech Variation, Dutch Variation | 2 | 25% |
| English Opening: Symmetrical Variation, Rubinstein Variation | 2 | 50% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2026-09-22 | Oleksandr Dovgaliuk (2291) Dutch Meesterklasse 2026-2027 | L |
| 2026-08-29 | Samuel Jesus P Goncalves (2252) Maia Chess Open 2026 | Masters | L |
| 2026-08-28 | Adrian Gonzalez Pinar (2103) Maia Chess Open 2026 | Masters | W |
| 2026-08-27 | Tim Janzelj (2416) Maia Chess Open 2026 | Masters | L |
| 2026-08-25 | David Garcia Sobrino (2159) Maia Chess Open 2026 | Masters | W |
| 2026-08-24 | Daniel Arvola (2140) Maia Chess Open 2026 | Masters | ½ |
| 2026-08-23 | Havard Haug (2436) Maia Chess Open 2026 | Masters | L |
| 2026-08-22 | Yannick Woods (2118) Maia Chess Open 2026 | Masters | W |
| 2026-08-22 | Aaron Kamp (2063) Maia Chess Open 2026 | Masters | W |
| 2026-08-18 | Jacopo Gennari (2205) Maia Chess Open 2026 | Masters | 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.