RK

Ronald Klaassen

Rated since January 2023

1818 Classic

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
SCHRADER, H. (HANS-JOACHIM) 1967
7605 SOS Competitie 2023/2024 November 2023 · 2023-11-17
VOS, D. (DIEDERICK) 1917
7028 SOS Competitie 2022/2023 April 2023(K1) · 2023-04-14
DIEPEN VAN, N.W.P. (NIEK) 1900
8100 SOS Competitie 2023/2024 Maart 2024 · 2024-03-14
BEIJEN, C.M. (CEES) 1779
9652 SOS Competitie 2024/2025 2025-03 · 2025-03-20
BRAAMS, A.E. (TON) 1617
8387 OSBO Cup 2023/2024 Groep A · 2024-01-08
Worst losses
TICHELMAN, J.F. (RIK) 1680
8098 SOS Competitie 2023/2024 Januari 2024 · 2024-01-19
DIK, P.E. (PIM) 1845
12052 SOS competitie 2025/2026 Lijst 1 Dec · 2025-11-06
WEST, B. (BAS) 1859
9654 SOS Competitie 2024/2025 2025-05 · 2025-05-20
JANSSEN, A.H.A.F. (TOON) 1864
12051 SOS competitie 2025/2026 Lijst 1 Nov · 2025-10-09
FOKKINGA, T. (TIJL) 1868
9650 SOS Competitie 2024/2025 2025-01 · 2025-01-16
No FIDE-rated tournaments found.
SOS competitie 2025/2026 Lijst 1 apr Mon, Sep 1, 2025 +0–0=1 +0.2
SOS competitie 2025/2026 Lijst 1 mrt Mon, Sep 1, 2025 +0–1=0 -7.0
SOS competitie 2025/2026 Lijst 1 Dec Mon, Sep 1, 2025 +0–1=0 -12.2
SOS competitie 2025/2026 Lijst 1 Nov Mon, Sep 1, 2025 +0–1=0 -12.0
SOS Competitie 2024/2025 2025-05 Sun, Sep 1, 2024 +0–1=0 -12.6
SOS Competitie 2024/2025 2025-03 Sun, Sep 1, 2024 +1–0=0 +10.0
SOS Competitie 2024/2025 2025-01 Sun, Sep 1, 2024 +0–1=0 -6.1
SOS Competitie 2024/2025 2024-11 Sun, Sep 1, 2024 +0–1=0 -8.7
OSBO Cup 2023/2024 Groep A Wed, Nov 1, 2023 +1–0=0 +6.8
SOS Competitie 2023/2024 Mei 2024 Fri, Sep 1, 2023 +0–1=0
SOS Competitie 2023/2024 April 2024 Fri, Sep 1, 2023 +0–1=0 -11.3
SOS Competitie 2023/2024 Maart 2024 Fri, Sep 1, 2023 +1–0=0 +13.8
SOS Competitie 2023/2024 Februari 2024 Fri, Sep 1, 2023 +0–1=0 -7.0
SOS Competitie 2023/2024 Januari 2024 Fri, Sep 1, 2023 +0–1=0 -16.3
SOS Competitie 2023/2024 December 2023 Fri, Sep 1, 2023 +0–0=1 +5.5
SOS Competitie 2023/2024 November 2023 Fri, Sep 1, 2023 +1–0=0 +19.0
SOS Competitie 2023/2024 Oktober 2023 Fri, Sep 1, 2023 +0–1=0 -8.5
OSBO Cup 2022/2023 Groep A Tue, Dec 6, 2022 +1–0=0
SOS Competitie 2022/2023 April 2023(K1) Mon, Sep 12, 2022 +1–0=0 +17.9
SOS Competitie 2022/2023 Februari 2023 Mon, Sep 12, 2022 +1–0=0 +5.7
SOS Competitie 2022/2023 December 2022 Mon, Sep 12, 2022 +0–0=1 -2.5

Rating History

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Peak Ratings

Classic 1878 April 1, 2024
Rapid 1818 March 1, 2026
Blitz 1818 March 1, 2026

Games

Wins 7
Losses 11
Draws 3
Win Rate 33%

Performance by Color

Color Wins Draws Losses Win Rate
White 4 3 3 40%
Black 3 0 8 27%

Recent Matches

Dijk van, C.H. (Ron) (1823) 2026-03-09 DRAW +0.2
Rutten, B.A. (Bram) (1993) 2026-02-12 LOSS -7.0
Dik, P.E. (Pim) (1845) 2025-11-06 LOSS -12.2
Janssen, A.H.A.F. (Toon) (1864) 2025-10-09 LOSS -12.0
West, B. (Bas) (1859) 2025-05-20 LOSS -12.6
Beijen, C.M. (Cees) (1779) 2025-03-20 WIN +10.0
Fokkinga, T. (Tijl) (1868) 2025-01-16 LOSS -6.1
Buijse, A. (Arjan) (1980) 2024-11-14 LOSS -8.7
Morssinkhof, A. (Arno) 2024-05-24 LOSS
Christians, R.H. (Richard) (1912) 2024-04-11 LOSS -11.3
Diepen van, N.W.P. (Niek) (1900) 2024-03-14 WIN +13.8
Heine, I. (Ivar) (1942) 2024-02-15 LOSS -7.0
Tichelman, J.F. (Rik) (1680) 2024-01-19 LOSS -16.3
Braams, A.E. (Ton) (1617) 2024-01-08 WIN +6.8
Knuiman, J.J.E. (Jan) (1952) 2023-12-07 DRAW +5.5
Schrader, H. (Hans-Joachim) (1967) 2023-11-17 WIN +19.0
Brandt, T. (Thorsten) (1891) 2023-10-12 LOSS -8.5
Vos, D. (Diederick) (1917) 2023-04-14 WIN +17.9
Poll van der, D. (Darwin) (1534) 2023-02-09 WIN +5.7
Voogt, F.C. (Frans) 2022-12-06 WIN