KNSB FIDE
BD

Bert Duijker

Rated since January 2023

1865 Classic
1888 Rapid
1888 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
SCHWAB, WOLFGANG 1875
22. RLP-Senioren-Open · Wednesday 20 August 2025
PEELEN, C. (CHARLES) 1845
12410 KNSB competitie 2025-2026 Klasse 5 Ronde 3 · Saturday 22 November 2025
SCHOOTBRUGGE VAN DE, G.V. (GABRI) 1840
14321 KNSB competitie 2026-2027 Klasse 4 ronde 1 · Saturday 19 September 2026
BJORGVIK, JAN ARNE 1799
19. Offene Senioreneinzelmeisterschaft Schleswig-Holstein · Wednesday 8 October 2025
ANDRASCH, PETER 1773
42. OBSenEM (Offene Berliner Senioren-Einzel-Meisterschaft) · Saturday 7 February 2026
Worst losses
MEIJER, R. (RENÉ) 1734
12265 KNSB competitie 2025-2026 Klasse 5 ronde 2 · Saturday 1 November 2025
REIMERS, CHRISTINE 1771
23. RLP-Senioren-Open · Saturday 22 August 2026
BEST, INGEBORG 1817
23. RLP-Senioren-Open · Tuesday 25 August 2026
THIJSSEN, A.W. (TON) 1848
12594 KNSB competitie 2025-2026 Klasse 5 ronde 4 · Saturday 13 December 2025
KARPINSKI, HARALD 1911
42. OBSenEM (Offene Berliner Senioren-Einzel-Meisterschaft) · Wednesday 11 February 2026
23. RLP-Senioren-Open Tuesday 18 August 2026 +3–4=2 -23.0
42. OBSenEM (Offene Berliner Senioren-Einzel-Meisterschaft) Tuesday 3 February 2026 +3–2=4 +14.6
KNSB competitie 2026-2027 Klasse 4 ronde 1 Saturday 19 September 2026 +1–0=0 +11.2
Chess Classics 2026 75 plus Wednesday 27 May 2026 +2–2=5 -10.8
19. Offene Senioreneinzelmeisterschaft Schleswig-Holstein Thursday 2 October 2025 +3–3=2 -14.2
KNSB competitie 2025-2026 Klasse 5 ronde 5 Saturday 20 September 2025 +0–0=1 +1.4
KNSB competitie 2025-2026 Klasse 5 ronde 7 Saturday 20 September 2025 +0–0=1 -1.0
KNSB competitie 2025-2026 Klasse 5 ronde 4 Saturday 20 September 2025 +0–1=0 -13.9
KNSB competitie 2025-2026 Klasse 5 Ronde 3 Saturday 20 September 2025 +1–0=0 +10.3
KNSB competitie 2025-2026 Klasse 5 ronde 2 Saturday 20 September 2025 +0–1=0 -18.3
22. RLP-Senioren-Open Tuesday 12 August 2025 +3–3=2 +14.7
31. Bad Bertricher Schachtage 2025 Seniorenturnier over 50 Friday 18 July 2025 +2–2=5 +15.6
KNSB competitie 2024-2025 Klasse 4 ronde 9 en uitgestelde wedstrijd … Saturday 21 September 2024 +0–1=0 -10.7

Team Competition

Current team
Veenendaal 2
Klasse 5D · 2025-2026 · 5 games
Past teams
ASV 4
Klasse 4G · 2024-2025
ASV 5
Klasse 4B · 2024-2025
ASV 4
Klasse 4B · 2023-2024
ASV 4
Klasse 3B · 2022-2023
Veenendaal 1
2B · 2022-2023
ASV 3
Klasse 3C · 2021-2022
ASV 4
Klasse 4C · 2021-2022
Veenendaal 1
1D · 2021-2022
Veenendaalse S.V. 1
HKB · 2019-2020
Veenendaalse S.V. 1
HKC · 2018-2019

Rating History

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Peak Ratings

Classic 1909 Oct. 1, 2025
Rapid 1888 May 1, 2026
Blitz 1888 May 1, 2026

Games

Wins 18
Losses 19
Draws 22
Win Rate 31%

Performance by Color

Color Wins Draws Losses Win Rate
White 11 11 10 34%
Black 7 11 9 26%

Recent Matches

Schootbrugge van de, G.V. (Gabri) (1840) Saturday 19 September 2026 WIN +11.2
Judt, Gerhard (1687) Wednesday 26 August 2026 WIN +6.3
Best, Ingeborg (1817) Tuesday 25 August 2026 LOSS -14.6
Bartsch, Karl-Heinz (1726) Monday 24 August 2026 DRAW -5.0
Linz, Stefan (1682) Sunday 23 August 2026 WIN +6.2
Reimers, Christine (1771) Saturday 22 August 2026 LOSS -16.1
Stuemer, P. (Paul) (2026) Friday 21 August 2026 LOSS -7.5
Brettschneider, Karl (1959) Thursday 20 August 2026 DRAW +2.8
Auschkalnis, Reinhard (1732) Wednesday 19 August 2026 WIN +7.7
IM Boidman, Y. (Yuri) (2228) Tuesday 18 August 2026 LOSS -2.7
Jacob, B. (Barbara) (1800) Thursday 4 June 2026 DRAW -3.0
Vasiljev, Jurij (2006) Wednesday 3 June 2026 LOSS -8.5
Taube, Hubertus (2033) Tuesday 2 June 2026 LOSS -7.7
Brahn, Helmut (1732) Monday 1 June 2026 WIN +7.3
Bieberle, G. (Gerhart) (1947) Sunday 31 May 2026 DRAW +2.0
IM Salov, S. (Sergej) (2177) Saturday 30 May 2026 DRAW +8.6
Jovi, Klaus (1603) Friday 29 May 2026 WIN +4.0
Kurpiela, Franz (1776) Thursday 28 May 2026 DRAW -3.8
Wang, Huanying (1539) Wednesday 27 May 2026 DRAW -9.7
Visee, R.C. (Rein) (1912) Saturday 28 March 2026 DRAW +1.4