KNSB FIDE
SK

Stoyan Kostov

Rated since February 2026

1853 Classical

The good & the bad

Best wins
BERGER, LARS 1824
TOBOL Chess Open 2026 A-Open · 2026-03-13
VAN DIJK, SIMON 1816
Chessfestival Groningen 2025 Open C · 2025-12-21
DUIN, JEROEN 1815
Tata Steel Chess 2026 - Tienkampen · 2026-01-23
TANUKUSUMA, KYLLIAN GOTTHOLD 1797
TOBOL Chess Open 2026 A-Open · 2026-03-13
VAN VELTHOVEN, PAUL 1737
Chessfestival Groningen 2025 Open C · 2025-12-21
Worst losses
CHERNOKOL, ILYA 1524
Chessfestival Groningen 2025 Open C · 2025-12-21
NI, WILHELM ZEYIN 1724
TOBOL Chess Open 2026 A-Open · 2026-03-13
MIENIS, DENNIS 2045
Tapijtgigant Open ASK 2026 - Group A · 2026-04-04
ZIEGENFUSS, HOLGER 2048
TOBOL Chess Open 2026 A-Open · 2026-03-13
DOESCHER, THORSTEN 2068
Tapijtgigant Open ASK 2026 - Group A · 2026-04-04

FIDE Tournaments

Tapijtgigant Open ASK 2026 - Group A 2026-04-04 +0–4=0 -40.0
TOBOL Chess Open 2026 A-Open 2026-03-13 +2–3=0 -25.6
Tata Steel Chess 2026 - Tienkampen 2026-01-23 +8–0=1 +115.2
Chessfestival Groningen 2025 Open C 2025-12-21 +4–1=3
Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +8–0=1 +380.0
Chessfestival Groningen Open C Sunday 21 December 2025 +4–1=4 +205.5
Amsterdam Chess Open Groep D2 Friday 24 October 2025 +4–2=0

Rating History

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Peak Ratings

Classical 1919

Games

Wins 14
Losses 8
Draws 4
Win Rate 54%

Performance by Color

Color Wins Draws Losses Win Rate
White 7 2 4 54%
Black 7 2 4 54%

All-time Games (from rating history)

Classical 28

Recent Matches

Kamphuis, Jasper (2086) 2026-04-04 LOSS -10.0
Mienis, Dennis (2045) 2026-04-04 LOSS -12.0
Doescher, Thorsten (2068) 2026-04-04 LOSS -10.8
Darie, Aden (2150) 2026-04-04 LOSS -7.2
Ni, Wilhelm Zeyin (1724) 2026-03-13 LOSS -30.0
Berger, Lars (1824) 2026-03-13 WIN +14.8
Tanukusuma, Kyllian Gotthold (1797) 2026-03-13 WIN +13.2
Aniol, Nico (2100) 2026-03-13 LOSS -10.4
Ziegenfuss, Holger (2048) 2026-03-13 LOSS -13.2
Koopmans, Perry (1696) 2026-01-23 WIN +14.0
Duin, Jeroen (1815) 2026-01-23 WIN +20.8
Hoogeveen, Luuk (1708) 2026-01-23 WIN +14.8
Ketkar, Ashish (1702) 2026-01-23 WIN +14.4
Buschman, Rob (1719) 2026-01-23 DRAW -4.8
Van Der Hoek, Willem (1683) 2026-01-23 WIN +13.6
Bartman, Victor (1652) 2026-01-23 WIN +12.0
De Koning, Patrick (1719) 2026-01-23 WIN +15.2
Schulz, Robert (1714) 2026-01-23 WIN +15.2
Pompstra, Henk (1808) 2025-12-21 DRAW 0.0
Van Dijk, Simon (1816) 2025-12-21 WIN 0.0
Van Velthoven, Paul (1737) 2025-12-21 WIN 0.0
Van Essen, Tobias (1757) 2025-12-21 DRAW 0.0
Heeres, Felix (1611) 2025-12-21 WIN 0.0
Klimovich, Hanna (1702) 2025-12-21 WIN 0.0
Chernokol, Ilya (1524) 2025-12-21 LOSS 0.0
Kolijn, Simon (1661) 2025-12-21 DRAW 0.0