KNSB FIDE
KZ

Koen Zuidberg

Rated since June 2024

1855 Classic
1855 Rapid
1855 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
JONKERS, B.S. (BAS) 1886
10472 Tata Steel Chess Tournament 2026 Dagvierkampen · Wednesday 21 January 2026
WAL VAN DER, M. (MATTIAS) 1876
9649 SOS Competitie 2024/2025 2024-12 · Friday 29 November 2024
BOERE, L. (LARS) 1871
11023 KNSB competitie 2024-2025 Klasse 6 ronde 7 · Saturday 5 April 2025
TUIJNMAN, J. (JEANNOT) 1821
9802 Amsterdam Chess Open Groep B · Sunday 3 November 2024
VRANDE VAN DE, B. (BRAM) 1786
8283 Tata Steel Chess Tournament 2025 Weekendvierkampen · Friday 17 January 2025
Worst losses
OOSTVEEN, T. (THIJS) 1409
8099 SOS Competitie 2023/2024 Februari 2024 · Wednesday 14 February 2024
VESTERS, T. (TIMO) 1687
9645 KNSB competitie 2024-2025 Klasse 6 ronde 1 · Saturday 12 October 2024
BELT VAN DEN, P.G.H. (PETER) 1757
13249 KNSB competitie 2025-2026 Klasse 6 ronde 7 · Saturday 7 March 2026
ALHASAN, H.U.S. (HUSAM) 1784
9802 Amsterdam Chess Open Groep B · Friday 1 November 2024
KUIPER, W. (WILLEM) 1804
10472 Tata Steel Chess Tournament 2026 Dagvierkampen · Tuesday 20 January 2026
Tata Steel Chess Tournament 2026 Dagvierkampen Friday 16 January 2026 +1–2=0 -25.4
Tata Steel Chess Tournament 2025 Weekendvierkampen Friday 17 January 2025 +1–2=0 -25.8
Amsterdam Chess Open Groep B Friday 1 November 2024 +1–2=3 -42.7
Tata Steel Chess Tournament 2024 Weekendvierkampen Friday 12 January 2024 +3–0=0 +0.3
KNSB competitie 2025-2026 Klasse 6 ronde 7 Saturday 20 September 2025 +0–1=0 -26.8
SOS competitie 2025/2026 Lijst 1 mrt Monday 1 September 2025 +1–0=0 +15.2
KNSB competitie 2024-2025 Klasse 6 ronde 7 Saturday 21 September 2024 +1–0=0 +23.5
KNSB competitie 2024-2025 Klasse 6 ronde 6 Saturday 21 September 2024 +1–0=0 +17.1
KNSB competitie 2024-2025 Klasse 6 ronde 1 Saturday 21 September 2024 +0–1=0 -59.4
SOS Competitie 2024/2025 2025-04 Sunday 1 September 2024 +1–0=0 +13.8
SOS Competitie 2024/2025 2025-03 Sunday 1 September 2024 +1–0=0 +17.4
SOS Competitie 2024/2025 2024-12 Sunday 1 September 2024 +1–0=0 +35.6
SOS Competitie 2024/2025 2024-11 Sunday 1 September 2024 +0–0=1 -7.6
SOS Competitie 2024/2025 2024-10 Sunday 1 September 2024 +1–0=0 +14.2
49e Open Kampioenschap van Utrecht Groep C Friday 10 May 2024 +5–0=1 +210.9
SOS Competitie 2023/2024 Februari 2024 Friday 1 September 2023 +0–1=0 -206.9

Rating History

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Peak Ratings

Classic 1906 June 1, 2024
Rapid 1882 March 1, 2026
Blitz 1882 March 1, 2026

Games

Wins 18
Losses 9
Draws 5
Win Rate 56%

Performance by Color

Color Wins Draws Losses Win Rate
White 12 1 4 71%
Black 6 4 5 40%

Recent Matches

Belt van den, P.G.H. (Peter) (1757) Saturday 7 March 2026 LOSS -26.8
Vrolijk, J. (Jeroen) (1783) Wednesday 28 January 2026 WIN +15.2
Jonkers, B.S. (Bas) (1886) Wednesday 21 January 2026 WIN +21.2
Kuiper, W. (Willem) (1804) Tuesday 20 January 2026 LOSS -26.8
Van Dael, Jonas (1922) Monday 19 January 2026 LOSS -19.8
Boudewijn, C.A. (Christian) (1710) Tuesday 8 April 2025 WIN +13.8
Boere, L. (Lars) (1871) Saturday 5 April 2025 WIN +23.5
With de, C. (Chris) (1720) Saturday 8 March 2025 WIN +17.1
Poll van der, T. (Theo) (1726) Wednesday 5 March 2025 WIN +17.4
Smit, R.B. (Rick) (1892) Sunday 19 January 2025 LOSS -22.3
Garrett, S.P. (Stephen) (1858) Saturday 18 January 2025 LOSS -24.7
Vrande van de, B. (Bram) (1786) Friday 17 January 2025 WIN +21.2
Wal van der, M. (Mattias) (1876) Friday 29 November 2024 WIN +35.6
Samsom, C.A.J. (Cees) (1780) Wednesday 20 November 2024 DRAW -7.6
Poel van de, J. (Jona) (1906) Sunday 3 November 2024 LOSS -29.9
Tuijnman, J. (Jeannot) (1821) Sunday 3 November 2024 WIN +30.4
Louter, R.P.N. (Rowan) (1861) Saturday 2 November 2024 DRAW
Berg van den, C. (Cees) (1882) Saturday 2 November 2024 DRAW +2.0
Veselov, Ivan (1821) Friday 1 November 2024 DRAW -3.8
Alhasan, H.U.S. (Husam) (1784) Friday 1 November 2024 LOSS -41.4