NetherlandsNED
ID: 1006509

Wim Koster

FIDE ratings

2,127Classical

Performance

50 games
46% Win
22% Draw
32% Loss

Wim Koster's playing style

Strong overall score:57%23W 11D 16L over 50 games
Dominates 1.e4 as White:63%in 20 games
Steady recent form:50%8W 4D 8L in last 20 games

Openings as White

Among the openings shown, Ruy Lopez: Closed has the largest White sample, with 2 games. Select a row to explore its moves and inspect example games below.

Ruy Lopez: Closed
50%
50%
2g
Sicilian Defense: Alapin Variation, Smith-Morra Declined
50%
50%
2g
Sicilian Defense: Alapin Variation
50%
50%
2g
Nimzo-Indian Defense: St. Petersburg Variation
100%
1g
King's Indian Defense: Semi-Averbakh System
100%
1g

Openings as Black

Among the openings shown, Ruy Lopez: Open has the largest Black sample, with 2 games. These results describe the available sample, not a prediction of the player’s next choice.

Ruy Lopez: Open
50%
50%
2g
Queen's Gambit Declined: Normal Defense
50%
50%
2g
Scotch Game: Scotch Gambit
100%
2g
Sicilian Defense: Najdorf Variation, Main Line
100%
1g
Sicilian Defense: Alapin Variation
100%
1g

Repertoire

25 games as white in scope
8
7
6
5
4
3
2
a1
b
c
d
e
f
g
h
Move arrowsfrequency, not engine evaluation

Starting position

25 games in this line · White to move

Results for Koster, Wim as white · Wins / Draws / Losses

W / D / L
48%
28%
24%
Move
20 · 80%
50%
25%
25%
5 · 20%
40%
40%
20%

Game History

(50 games)
DateSourceColorOpponentResultLink
Aug 30, 2025
OTB - TWIC
IMMartinez Reyes, Pedro Ramon(1342)
L—
Aug 29, 2025
OTB - TWIC
Rodriguez Ferreiros, Andres(2147)
W—
Aug 28, 2025
OTB - TWIC
FMGuleryuz, Kuzey(2142)
L—
Aug 27, 2025
OTB - TWIC
CMGomez Carreno, Martin(2163)
W—
Aug 26, 2025
OTB - TWIC
GMSmirin, Ilia(2564)
L—
Aug 25, 2025
OTB - TWIC
GMBailet, Pierre(2454)
D—
Aug 23, 2025
OTB - TWIC
Takahashi, Michael(2110)
D—
Aug 22, 2025
OTB - TWIC
Cabanas Lopez, Manuel Anxo(2044)
W—
Dec 27, 2024
OTB - TWIC
IMDe Winter, Arthur(2446)
L—
Dec 26, 2024
OTB - TWIC
FMWeber, Samuel(2263)
W—

Research Wim Koster’s games and opening repertoire

Wim Koster is rated 2127 in standard by FIDE. Wim Koster plays for Netherlands.

Wim Koster has FIDE ID 1006509.

Check the official FIDE record for ratings and identity. It is not a complete archive of game moves.

Use the openings as White and Black to identify recurring choices in the available games. Follow a branch into the repertoire explorer and inspect example games in the game history. Dates, time controls and sources affect which patterns are relevant to your next match.

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