Jan Willem Koelmans
NED · FIDE ID 1011588 · 4 tournament games since 2024
Standard
1850
#2586 in NED (active)
Rapid
1822
#652 in NED (active)
Blitz
1894
#779 in NED (active)
Score
25%
0 W · 2 D · 2 L
Opp. avg
1867
Last 4 games
Last game
2025-12-23
Chessfestival Groningen 2025 | Open B
Prep summary
- As White: 1.d4 in 100% of games (scores 33%).
Based on 4 over-the-board games. 3 with White (33%), 1 with Black (0%).
Openings as White
First move
| 1.d4 | 3 | 33% |
Most played
| Opening | Games | Score |
|---|---|---|
| Nimzo-Indian Defense: Reshevsky Variation | 1 | 0% |
| Queen's Pawn Game: Colle System | 1 | 50% |
| King's Indian Defense: Sämisch Variation, Sämisch Gambit | 1 | 50% |
Openings as Black
Against 1.e4 (1 game)
| 1...c5 Sicilian Defense | 1 | 0% |
Most played
| Opening | Games | Score |
|---|---|---|
| Sicilian Defense: Najdorf Variation | 1 | 0% |
Recent games
| Date | Opponent and event | Result |
|---|---|---|
| 2025-12-23 | Oscar Zecha (1982) Chessfestival Groningen 2025 | Open B | L |
| 2024-05-12 | Micha Ronner (1793) Utrecht Open Championship 2024 | Group B | L |
| 2024-05-12 | Leon Elferink (1827) Utrecht Open Championship 2024 | Group B | ½ |
| 2024-05-12 | Lars Nobbe Utrecht Open Championship 2024 | Group B | ½ |
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.