KNSB FIDE
OS

Ozkal Sonmez

Rated since November 2025

1860 Classic

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
MARKUS, J.R. (JOHN) 1984
14012 HSG Open 2026 Groep B · Sunday 21 June 2026
TORCZYNSKI, P. (PETER) 1896
13120 85e Daniel Noteboomtoernooi Groep B · Saturday 21 February 2026
WAGEMANS, E.P.M. (ED) 1889
13120 85e Daniel Noteboomtoernooi Groep B · Friday 20 February 2026
MASTOP, G.M. (GUIDO) 1871
12213 Amsterdam Chess Open Groep C1 · Saturday 25 October 2025
KERKHOFF, C.R. (CHRIS) 1857
14234 Oscar Romero Open Hoorns Kampioenschap 2026 + PK NHSB Groep B · Sunday 16 August 2026
Worst losses
GRECO, FILIPPO 1802
12213 Amsterdam Chess Open Groep C1 · Sunday 26 October 2025
HUANG, Z. (ZIYANG) 1807
14234 Oscar Romero Open Hoorns Kampioenschap 2026 + PK NHSB Groep B · Sunday 16 August 2026
VERHOEFF, T.J. (TIMARDI) 1851
12213 Amsterdam Chess Open Groep C1 · Saturday 25 October 2025
BINNENDIJK, D.C.W. (DAAN) 1883
13120 85e Daniel Noteboomtoernooi Groep B · Sunday 22 February 2026
HSG Open 2026 Groep B Friday 19 June 2026 +1–0=4 +34.8
85e Daniel Noteboomtoernooi Groep B Friday 20 February 2026 +3–1=1 +44.0
Amsterdam Chess Open Groep C1 Friday 24 October 2025 +3–2=1 +40.9
Amsterdam Chess Open Groep D Friday 1 November 2024 +5–1=0 +21.1
Oscar Romero Open Hoorns Kampioenschap 2026 + PK NHSB Groep B Friday 14 August 2026 +2–1=3 -5.1

Rating History

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Peak Ratings

Classic 1865 July 1, 2026

Games

Wins 14
Losses 5
Draws 9
Win Rate 50%

Performance by Color

Color Wins Draws Losses Win Rate
White 7 5 2 50%
Black 7 4 3 50%

Recent Matches

Kerkhoff, C.R. (Chris) (1857) Sunday 16 August 2026 WIN +12.8
Huang, Z. (Ziyang) (1807) Sunday 16 August 2026 LOSS -15.2
Rijnders, N. (Nanno) (1787) Saturday 15 August 2026 DRAW -2.8
Pfennig, Konstantin (1762) Saturday 15 August 2026 DRAW -3.7
Heertjes, M. (Marc) (1721) Friday 14 August 2026 WIN +8.0
Veerman, H.P.J. (Henk) (1747) Friday 14 August 2026 DRAW -4.2
Bennett, Eric (1878) Sunday 21 June 2026 DRAW +1.8
Markus, J.R. (John) (1984) Sunday 21 June 2026 WIN +19.2
Bollaart, J.A.L. (Jeroen) (1998) Saturday 20 June 2026 DRAW +6.0
Verhoeff, T.J. (Timardi) (1931) Friday 19 June 2026 DRAW +3.8
Burg van den, R. (Ralf) (1938) Friday 19 June 2026 DRAW +4.0
Elangkumaran, A. (Anumitra) (1779) Sunday 22 February 2026 WIN +13.9
Binnendijk, D.C.W. (Daan) (1883) Sunday 22 February 2026 LOSS -10.4
Muskens, M.A. (Mink) (1887) Saturday 21 February 2026 DRAW +3.9
Torczynski, P. (Peter) (1896) Saturday 21 February 2026 WIN +18.4
Wagemans, E.P.M. (Ed) (1889) Friday 20 February 2026 WIN +18.2
Bilochenko, O.V. (Oleksandr) (1815) Sunday 26 October 2025 WIN +19.1
Greco, Filippo (1802) Sunday 26 October 2025 LOSS -12.0
Verhoeff, T.J. (Timardi) (1851) Saturday 25 October 2025 LOSS -10.0
Mastop, G.M. (Guido) (1871) Saturday 25 October 2025 WIN +21.3