KNSB FIDE
SK

Stoyan Kostov

Rated since November 2025

1861 Rapid

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
KONING, M.D.O. (MILAN) 1997
13748 Amsterdam Chess Festival 2026 + NK Studenten Klassiek Groep B · Tuesday 14 July 2026
CORDES, J.J. (JULE) 1975
13748 Amsterdam Chess Festival 2026 + NK Studenten Klassiek Groep B · Sunday 12 July 2026
PASTI, F. (FABIO) 1951
13748 Amsterdam Chess Festival 2026 + NK Studenten Klassiek Groep B · Saturday 11 July 2026
DOORN, D.J. (DANIEL) 1932
13975 SGA Rapidcompetitie 2026 1e Klasse voorronde · Wednesday 27 May 2026
MENDELSOHN, S.I.D. (SAFFRAN) 1911
13975 SGA Rapidcompetitie 2026 1e Klasse voorronde · Thursday 21 May 2026
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
RIJK DE, C. (CHARLES) 1731
14012 HSG Open 2026 Groep B · Sunday 21 June 2026
Amsterdam Chess Festival 2026 + NK Studenten Klassiek Groep B Saturday 11 July 2026 +4–5=0 +8.0
HWP Inholland Weekendtoernooi Groep B Saturday 27 June 2026 +3–1=1 +8.8
HSG Open 2026 Groep B Friday 19 June 2026 +0–3=3 -64.5
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 Rapidcompetitie 2026 1e Klasse voorronde Wednesday 20 May 2026 +2–4=3 -71.0
SGA Competitie 2025-2026 1e Klasse B ronde 7 Wednesday 1 October 2025 +1–0=0 +13.8

Team Competition

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

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 28
Losses 26
Draws 15
Win Rate 41%

Performance by Color

Color Wins Draws Losses Win Rate
White 16 8 12 44%
Black 12 7 14 36%

Recent Matches

Vlis van der, P. (Peter) (1866) Sunday 19 July 2026 WIN +14.9
Omota, V. (Vlad) (1960) Saturday 18 July 2026 LOSS -11.7
Bolhuis, R. (Ridens) (1871) Friday 17 July 2026 LOSS -15.5
Westerhof, F. (Fleur) (1952) Thursday 16 July 2026 LOSS -12.1
Garau, F. (Francesca) (1942) Wednesday 15 July 2026 LOSS -12.5
Koning, M.D.O. (Milan) (1997) Tuesday 14 July 2026 WIN +20.3
Wijk van, P.A. (Peter) (1926) Monday 13 July 2026 LOSS -13.2
Cordes, J.J. (Jule) (1975) Sunday 12 July 2026 WIN +19.4
Pasti, F. (Fabio) (1951) Saturday 11 July 2026 WIN +18.4
Beverdam, F. (Frank) (1809) Sunday 28 June 2026 WIN +11.5
Steur, E.T.M. (Erik) (1881) Sunday 28 June 2026 LOSS -19.7
Lowie, M.C. (Michiel) (1907) Saturday 27 June 2026 WIN +16.1
Wit de, J. (Jim) (1781) Saturday 27 June 2026 DRAW -7.0
Bovens, B.L. (Berend) (1718) Saturday 27 June 2026 WIN +7.9
Rijk de, C. (Charles) (1731) Sunday 21 June 2026 LOSS -26.3
Norden, M.J. (Marc) (1874) Sunday 21 June 2026 DRAW -2.8
Regterschot, F. (Frederieke) (1799) Saturday 20 June 2026 DRAW -3.1
Uitermark, I.D. (Imre) (1991) Saturday 20 June 2026 LOSS -14.5
Poel van de, J. (Jona) (1977) Friday 19 June 2026 LOSS -15.1
Pereira, H.M. (Hans) (1815) Friday 19 June 2026 DRAW -2.8