KNSB FIDE
RG

Ron Greven

Rated since January 2023

1774 Classic
1903 Rapid
1847 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
TERWEIJDEN, L. (LUUK) 1899
14353 47e Nico Dekker Chrysantentoernooi Groep 1 · Saturday 26 September 2026
TEO, K.T. (KIR) 1866
14353 47e Nico Dekker Chrysantentoernooi Groep 1 · Saturday 26 September 2026
KUIJS, G.P.H.M. (GERARD) 1848
14353 47e Nico Dekker Chrysantentoernooi Groep 1 · Saturday 26 September 2026
HAAS DE, M.A. (MAARTEN) 1837
14353 47e Nico Dekker Chrysantentoernooi Groep 1 · Saturday 26 September 2026
VEERMAN, H.P.J. (HENK) 1804
12313 Schaken op de Dijk Achtkampen · Saturday 8 November 2025
Worst losses
MARRES, O.P.J. (ONNO) 1686
14158 Open NK Schaken 2026 Reserve B · Monday 27 July 2026
BEERDSEN, M.H. (MARCO) 1750
14158 Open NK Schaken 2026 Reserve B · Saturday 25 July 2026
JOHANNESSON, B. (BJÖRN) 1757
14158 Open NK Schaken 2026 Reserve B · Thursday 23 July 2026
JAARSVELD VAN, J. (JITSE) 1758
14158 Open NK Schaken 2026 Reserve B · Wednesday 22 July 2026
ZEILEMAKER, R.C. (RONNY) 1758
12313 Schaken op de Dijk Achtkampen · Saturday 8 November 2025
Open NK Schaken 2026 Reserve B Tuesday 21 July 2026 +1–4=3 -72.8
Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +4–0=5 +41.6
47e Nico Dekker Chrysantentoernooi Groep 1 Saturday 26 September 2026 +5–1=1 +44.6
Schaken op de Dijk Achtkampen Saturday 8 November 2025 +4–2=1 +9.5

Rating History

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Peak Ratings

Classic 1847 March 1, 2026
Rapid 1903 Oct. 1, 2026
Blitz 1847 March 1, 2026

Games

Wins 14
Losses 7
Draws 10
Win Rate 45%

Performance by Color

Color Wins Draws Losses Win Rate
White 9 5 2 56%
Black 5 5 5 33%

Recent Matches

Struys van der, M. (Mitchel) (1638) Saturday 26 September 2026 WIN +5.5
Spil, A.L. (Bert) (1858) Saturday 26 September 2026 LOSS -12.5
Kuijs, G.P.H.M. (Gerard) (1848) Saturday 26 September 2026 WIN +12.2
Haas de, M.A. (Maarten) (1837) Saturday 26 September 2026 WIN +11.8
Terweijden, L. (Luuk) (1899) Saturday 26 September 2026 WIN +13.9
Albrecht, A. (Alex) (1884) Saturday 26 September 2026 DRAW +0.9
Teo, K.T. (Kir) (1866) Saturday 26 September 2026 WIN +12.8
Delft van, K. (Karel) (1632) Wednesday 29 July 2026 DRAW -6.9
Koeweiden, T. (Theo) (1665) Tuesday 28 July 2026 WIN +6.6
Marres, O.P.J. (Onno) (1686) Monday 27 July 2026 LOSS -17.8
Beerdsen, M.H. (Marco) (1750) Saturday 25 July 2026 LOSS -15.8
Winter de, E.B. (Eric) (1714) Friday 24 July 2026 DRAW -4.5
Johannesson, B. (Björn) (1757) Thursday 23 July 2026 LOSS -15.6
Jaarsveld van, J. (Jitse) (1758) Wednesday 22 July 2026 LOSS -15.6
Veen van der, A. (Ailko) (1755) Tuesday 21 July 2026 DRAW -3.2
Veenstra, F.L.J. (Frits) (1778) Sunday 1 February 2026 DRAW -0.9
Wiemerink, H. (Hans) (1797) Saturday 31 January 2026 DRAW -0.3
Haas de, P. (Paul) (1747) Friday 30 January 2026 WIN +10.5
Heeren van, A. (Arie) (1788) Wednesday 28 January 2026 WIN +11.9
Kooij, P. (Pieter) (1772) Tuesday 27 January 2026 DRAW -1.2