KNSB FIDE
RK

Ronald Keizer

Rated since January 2023

1988 Rapid
1988 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
BRUMMELEN VAN, K.B. (KEVIN) 2164
10494 KNSB competitie 2024-2025 Klasse 3 ronde 6 · 2025-02-08
PORTE, H. (HENRIK) 2139
7605 SOS Competitie 2023/2024 November 2023 · 2023-11-10
NITRAUW, P.K. (PETER) 2077
11251 KNSB competitie 2024-2025 Klasse 3 ronde 9 · 2025-05-10
REDEKER, J.B. (JOHAN) 2049
7805 KNSB competitie 2023-2024 Klasse 4 ronde 4 · 2023-11-25
KLINGE, J.R. (JIM) 2043
10703 KNSB competitie 2024-2025 Klasse 3 ronde 7 · 2025-03-08
Worst losses
BLOEMHOF, R.B.P. (RUBEN) 1738
7580 KNSB competitie 2023-2024 Klasse 4 ronde 1 · 2023-09-16
JERPHANION, L.B.F. (LUCIEN) 1795
6235 KNSB competitie 2022-2023 Klasse 4 ronde 5 · 2022-12-17
MILTENBURG, A.G. (ALEXANDER) 1825
7606 SOS Competitie 2023/2024 December 2023 · 2023-12-01
HOEKSTRA, S. (SJOERD) 1887
7016 KNSB competitie 2022-2023 Klasse 4 ronde 9 · 2023-04-22
KEMPERMAN, J.G. (HANS) 1905
8072 KNSB competitie 2023-2024 Klasse 4 ronde 5 · 2023-12-16
No FIDE-rated tournaments found.
KNSB competitie 2025-2026 Klasse 4 Ronde 4 Sat, Sep 20, 2025 +0–0=1 +0.3
KNSB competitie 2025-2026 Klasse 4 ronde 2 Sat, Sep 20, 2025 +1–0=0 +5.1
KNSB competitie 2025-2026 Klasse 4 ronde 1 Sat, Sep 20, 2025 +0–1=0 -13.7
KNSB competitie 2024-2025 Klasse 3 ronde 9 Sat, Sep 21, 2024 +1–0=0 +15.4
KNSB competitie 2024-2025 Klasse 3 ronde 8 Sat, Sep 21, 2024 +0–1=0 -9.6
KNSB competitie 2024-2025 Klasse 3 ronde 7 Sat, Sep 21, 2024 +1–0=0 +14.4
KNSB competitie 2024-2025 Klasse 3 ronde 6 Sat, Sep 21, 2024 +1–0=0 +18.8
KNSB competitie 2024-2025 Klasse 3 ronde 5 Sat, Sep 21, 2024 +0–1=0 -12.1
KNSB competitie 2024-2025 Klasse 3 ronde 4 Sat, Sep 21, 2024 +1–0=0 +12.1
KNSB competitie 2024-2025 Klasse 3 ronde 2 Sat, Sep 21, 2024 +0–0=1 -1.2
SOS Competitie 2024/2025 2025-01 Sun, Sep 1, 2024 +0–0=1 -4.4
SOS Competitie 2024/2025 2024-12 Sun, Sep 1, 2024 +0–1=0 -5.9
SOS Competitie 2024/2025 2024-11 Sun, Sep 1, 2024 +0–0=1 +3.3
SOS Competitie 2024/2025 2024-10 Sun, Sep 1, 2024 +0–1=0 -8.6
OSBO Cup 2023/2024 Kwartfinales ex SMB en Rhenen Wed, Nov 1, 2023 +0–0=1 +3.2
KNSB competitie 2023-2024 Klasse 4 ronde 8 Sat, Sep 16, 2023 +0–0=1 -3.8
KNSB competitie 2023-2024 Klasse 4 ronde 7 Sat, Sep 16, 2023 +1–0=0 +7.9
KNSB competitie 2023-2024 Klasse 4 ronde 6 Sat, Sep 16, 2023 +1–0=0 +12.3
KNSB competitie 2023-2024 Klasse 4 ronde 5 Sat, Sep 16, 2023 +0–1=0 -14.6
KNSB competitie 2023-2024 Klasse 4 ronde 4 Sat, Sep 16, 2023 +1–0=0 +16.6
KNSB competitie 2023-2024 Klasse 4 ronde 2 Sat, Sep 16, 2023 +0–0=1 -4.5
KNSB competitie 2023-2024 Klasse 4 ronde 1 Sat, Sep 16, 2023 +0–1=0 -19.6
SOS Competitie 2023/2024 Maart 2024 Fri, Sep 1, 2023 +1–0=0 +10.0
SOS Competitie 2023/2024 Februari 2024 Fri, Sep 1, 2023 +1–0=0 +3.9
SOS Competitie 2023/2024 December 2023 Fri, Sep 1, 2023 +0–1=0 -17.2
SOS Competitie 2023/2024 November 2023 Fri, Sep 1, 2023 +1–0=0 +19.2
SOS Competitie 2023/2024 September 2023 Fri, Sep 1, 2023 +0–1=0 -8.0
KNSB competitie 2022-2023 Klasse 4 ronde 9 Sat, Sep 17, 2022 +0–1=0 -15.1
KNSB competitie 2022-2023 Klasse 4 ronde 8 Sat, Sep 17, 2022 +1–0=0 +12.9
KNSB competitie 2022-2023 Klasse 4 ronde 7 Sat, Sep 17, 2022 +1–0=0 +7.8
KNSB competitie 2022-2023 Klasse 4 ronde 6 Sat, Sep 17, 2022 +1–0=0 +9.9
KNSB competitie 2022-2023 Klasse 4 ronde 5 Sat, Sep 17, 2022 +0–1=0 -18.5
KNSB competitie 2022-2023 Klasse 4 ronde 4 Sat, Sep 17, 2022 +0–1=0 -14.2

Rating History

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Peak Ratings

Classic 2007 June 1, 2025
Rapid 1998 March 1, 2026
Blitz 1998 March 1, 2026

Games

Wins 14
Losses 12
Draws 7
Win Rate 42%

Performance by Color

Color Wins Draws Losses Win Rate
White 9 5 5 47%
Black 5 2 7 36%

Recent Matches

Mostert, D.C.J. (Davin) (2007) 2025-11-22 DRAW +0.3
Ridder de, H.P.L. (Henk) (1756) 2025-10-04 WIN +5.1
Brand, N.W. (Niels) (1974) 2025-09-20 LOSS -13.7
Nitrauw, P.K. (Peter) (2077) 2025-05-10 WIN +15.4
Vries de, P. (Paul) (2086) 2025-04-05 LOSS -9.6
Klinge, J.R. (Jim) (2043) 2025-03-08 WIN +14.4
Brummelen van, K.B. (Kevin) (2164) 2025-02-08 WIN +18.8
Dijk van, S.L.T. (Simon) (1844) 2025-01-10 DRAW -4.4
Kossen, J. (Johannes) (2003) 2024-12-14 LOSS -12.1
Jong de, L. (Lode) (2010) 2024-12-06 LOSS -5.9
Kuijper, D. (Daniel) (1965) 2024-11-23 WIN +12.1
Porte, H. (Henrik) (2073) 2024-11-15 DRAW +3.3
Kraker de, J.A. (Johnny) (1952) 2024-10-12 DRAW -1.2
Mil van, L.H.F. (Lucas) (2101) 2024-09-13 LOSS -8.6
Broertjes, S.G. (Stephan) (1857) 2024-03-23 DRAW -3.8
Galekop, W.G. (Wes) (1897) 2024-03-08 WIN +10.0
CM Bus, T.G. (Tom) (2062) 2024-03-07 DRAW +3.2
Jovanovic, L. (Luka) (1833) 2024-03-02 WIN +7.9
Uyl den, R. (Rogier) (1646) 2024-02-09 WIN +3.9
Faber, A. (Ab) (1926) 2024-02-03 WIN +12.3