RK

Ronald Klaassen

Rated since January 2023

1818 Classic
1818 Rapid
1818 Blitz

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 · Friday 17 November 2023
VOS, D. (DIEDERICK) 1917
7028 SOS Competitie 2022/2023 April 2023(K1) · Friday 14 April 2023
DIEPEN VAN, N.W.P. (NIEK) 1900
8100 SOS Competitie 2023/2024 Maart 2024 · Thursday 14 March 2024
BEIJEN, C.M. (CEES) 1779
9652 SOS Competitie 2024/2025 2025-03 · Thursday 20 March 2025
BRAAMS, A.E. (TON) 1617
8387 OSBO Cup 2023/2024 Groep A · Monday 8 January 2024
Worst losses
TICHELMAN, J.F. (RIK) 1680
8098 SOS Competitie 2023/2024 Januari 2024 · Friday 19 January 2024
DIK, P.E. (PIM) 1845
12052 SOS competitie 2025/2026 Lijst 1 Dec · Thursday 6 November 2025
WEST, B. (BAS) 1859
9654 SOS Competitie 2024/2025 2025-05 · Tuesday 20 May 2025
JANSSEN, A.H.A.F. (TOON) 1864
12051 SOS competitie 2025/2026 Lijst 1 Nov · Thursday 9 October 2025
FOKKINGA, T. (TIJL) 1868
9650 SOS Competitie 2024/2025 2025-01 · Thursday 16 January 2025
No FIDE-rated tournaments found.
SOS competitie 2025/2026 Lijst 1 apr Monday 1 September 2025 +0–0=1 +0.2
SOS competitie 2025/2026 Lijst 1 mrt Monday 1 September 2025 +0–1=0 -7.0
SOS competitie 2025/2026 Lijst 1 Dec Monday 1 September 2025 +0–1=0 -12.2
SOS competitie 2025/2026 Lijst 1 Nov Monday 1 September 2025 +0–1=0 -12.0
SOS Competitie 2024/2025 2025-05 Sunday 1 September 2024 +0–1=0 -12.6
SOS Competitie 2024/2025 2025-03 Sunday 1 September 2024 +1–0=0 +10.0
SOS Competitie 2024/2025 2025-01 Sunday 1 September 2024 +0–1=0 -6.1
SOS Competitie 2024/2025 2024-11 Sunday 1 September 2024 +0–1=0 -8.7
OSBO Cup 2023/2024 Groep A Wednesday 1 November 2023 +1–0=0 +6.8
SOS Competitie 2023/2024 Mei 2024 Friday 1 September 2023 +0–1=0
SOS Competitie 2023/2024 April 2024 Friday 1 September 2023 +0–1=0 -11.3
SOS Competitie 2023/2024 Maart 2024 Friday 1 September 2023 +1–0=0 +13.8
SOS Competitie 2023/2024 Februari 2024 Friday 1 September 2023 +0–1=0 -7.0
SOS Competitie 2023/2024 Januari 2024 Friday 1 September 2023 +0–1=0 -16.3
SOS Competitie 2023/2024 December 2023 Friday 1 September 2023 +0–0=1 +5.5
SOS Competitie 2023/2024 November 2023 Friday 1 September 2023 +1–0=0 +19.0
SOS Competitie 2023/2024 Oktober 2023 Friday 1 September 2023 +0–1=0 -8.5
OSBO Cup 2022/2023 Groep A Tuesday 6 December 2022 +1–0=0
SOS Competitie 2022/2023 April 2023(K1) Monday 12 September 2022 +1–0=0 +17.9
SOS Competitie 2022/2023 Februari 2023 Monday 12 September 2022 +1–0=0 +5.7
SOS Competitie 2022/2023 December 2022 Monday 12 September 2022 +0–0=1 -2.5

Rating History

Loading rating history...

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) Monday 9 March 2026 DRAW +0.2
Rutten, B.A. (Bram) (1993) Thursday 12 February 2026 LOSS -7.0
Dik, P.E. (Pim) (1845) Thursday 6 November 2025 LOSS -12.2
Janssen, A.H.A.F. (Toon) (1864) Thursday 9 October 2025 LOSS -12.0
West, B. (Bas) (1859) Tuesday 20 May 2025 LOSS -12.6
Beijen, C.M. (Cees) (1779) Thursday 20 March 2025 WIN +10.0
Fokkinga, T. (Tijl) (1868) Thursday 16 January 2025 LOSS -6.1
Buijse, A. (Arjan) (1980) Thursday 14 November 2024 LOSS -8.7
Morssinkhof, A. (Arno) Friday 24 May 2024 LOSS
Christians, R.H. (Richard) (1912) Thursday 11 April 2024 LOSS -11.3
Diepen van, N.W.P. (Niek) (1900) Thursday 14 March 2024 WIN +13.8
Heine, I. (Ivar) (1942) Thursday 15 February 2024 LOSS -7.0
Tichelman, J.F. (Rik) (1680) Friday 19 January 2024 LOSS -16.3
Braams, A.E. (Ton) (1617) Monday 8 January 2024 WIN +6.8
Knuiman, J.J.E. (Jan) (1952) Thursday 7 December 2023 DRAW +5.5
Schrader, H. (Hans-Joachim) (1967) Friday 17 November 2023 WIN +19.0
Brandt, T. (Thorsten) (1891) Thursday 12 October 2023 LOSS -8.5
Vos, D. (Diederick) (1917) Friday 14 April 2023 WIN +17.9
Poll van der, D. (Darwin) (1534) Thursday 9 February 2023 WIN +5.7
Voogt, F.C. (Frans) Tuesday 6 December 2022 WIN