KNSB FIDE
SK

Stoyan Kostov

Rated since November 2025

1932 Classic
2166 Rapid
2166 Blitz

Team Competition

Current team
VAS 3
1e Klasse B · 2025-2026 · 1 game

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
VERWEIJ, N.P. (NIEK) 1873
13831 SGA Competitie 2025-2026 1e Klasse B ronde 7 · Thursday 7 May 2026
BERGER, LARS 1824
TOBOL Chess Open 2026 A-Open · Saturday 14 March 2026
TANUKUSUMA, KYLLIAN GOTTHOLD 1799
TOBOL Chess Open 2026 A-Open · Saturday 14 March 2026
HEERES, F.C. (FELIX) 1766
12699 Chessfestival Groningen Open C · Saturday 27 December 2025
VELTHOVEN VAN, P. (PAUL) 1756
12699 Chessfestival Groningen Open C · Tuesday 23 December 2025
Worst losses
CHERNOKOL, ILYA 1524
12699 Chessfestival Groningen Open C · Monday 29 December 2025
HOOGMOED, S. (SEBASTIAN) 1645
12216 Amsterdam Chess Open Groep D2 · Saturday 25 October 2025
PAZARCIOGLU, ILKER 1658
12216 Amsterdam Chess Open Groep D2 · Sunday 26 October 2025
NI, WILHELM ZEYIN 1725
TOBOL Chess Open 2026 A-Open · Friday 13 March 2026
VELDHUIZEN, D. (DIRK) 1901
13783 51e Open Kampioenschap van Utrecht Groep B · Saturday 16 May 2026
51e Open Kampioenschap van Utrecht Groep B Friday 15 May 2026 +0–3=2 -53.1
TAPIJTGIGANT OPEN ASK 2026 Groep A Saturday 4 April 2026 +0–4=1 -106.2
TOBOL Chess Open 2026 A-Open Friday 13 March 2026 +2–3=0 -88.9
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
SGA Competitie 2025-2026 1e Klasse B ronde 7 Wednesday 1 October 2025 +1–0=0 +13.8

Rating History

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Peak Ratings

Classic 2166 March 1, 2026
Rapid 2166 March 1, 2026
Blitz 2166 March 1, 2026

Games

Wins 19
Losses 13
Draws 8
Win Rate 48%

Performance by Color

Color Wins Draws Losses Win Rate
White 10 4 7 48%
Black 9 4 6 47%

Recent Matches

Schenkelaars, R. (Robin) (1961) Sunday 17 May 2026 LOSS -19.3
Veldhuizen, D. (Dirk) (1901) Saturday 16 May 2026 LOSS -22.4
Ismayilov, U. (Uzeyir) (1986) Saturday 16 May 2026 DRAW +0.8
Ee van, W. (Winston) (1857) Friday 15 May 2026 DRAW -5.8
Woldhuis, M. (Marnik) (2091) Friday 15 May 2026 LOSS -6.3
Verweij, N.P. (Niek) (1873) Thursday 7 May 2026 WIN +13.8
Singelenberg, H. (Hans) (2133) Monday 6 April 2026 DRAW -2.1
Darie, A.C. (Aden) (2117) Monday 6 April 2026 LOSS -25.6
Doescher, Thorsten (2068) Sunday 5 April 2026 LOSS -28.6
Mienis, D. (Dennis) (2088) Saturday 4 April 2026 LOSS -27.4
Kamphuis, J. (Jasper) (2164) Saturday 4 April 2026 LOSS -22.7
Ziegenfuss, Holger (2048) Sunday 15 March 2026 LOSS -29.7
Aniol, Nico (2100) Sunday 15 March 2026 LOSS -26.6
Tanukusuma, Kyllian Gotthold (1799) Saturday 14 March 2026 WIN +4.5
Berger, Lars (1824) Saturday 14 March 2026 WIN +5.2
Ni, Wilhelm Zeyin (1725) Friday 13 March 2026 LOSS -42.3
Schulz, Robert (1714) Sunday 1 February 2026 WIN +51.1
Koning de, P. (Patrick) (1736) Saturday 31 January 2026 WIN +54.1
Bartman, V. (Victor) (1656) Friday 30 January 2026 WIN +43.3
Hoek van der, W. (Willem) (1689) Wednesday 28 January 2026 WIN +47.8