KNSB FIDE
WD

Willem Dekker

Rated since January 2023

1589 Classic
1535 Rapid
1535 Blitz

RIVALRY

Not enough games to determine rivalries yet.

The good & the bad

Best wins
FOLKERTSMA, P. (PETER) 1617
13629 NHSB Lenteveteranentoernooi 2026 Groep B 2026 · Wednesday 4 March 2026
BECKER, J.G.R. (JEFFREY) 1611
10470 Tata Steel Chess Tournament 2026 Tienkampen · Sunday 25 January 2026
SPOELSTRA, S. (SIETSE) 1600
13629 NHSB Lenteveteranentoernooi 2026 Groep B 2026 · Wednesday 11 March 2026
KRUISSELBRINK, L. (LEO) 1585
10470 Tata Steel Chess Tournament 2026 Tienkampen · Saturday 31 January 2026
WITTE, C.H. (CEES) 1571
13459 NHSB-competitie 2025-2026 Viertallen A t/m 29-03-2026 · Saturday 28 March 2026
Worst losses
BOUWMAN, J.F. (FRITS) 1475
11682 NHSB Lenteveteranenkampioenschap 2025 Groep 3 · Wednesday 26 March 2025
GOOIJERS, R. (RICHARD) 1544
11682 NHSB Lenteveteranenkampioenschap 2025 Groep 3 · Wednesday 12 March 2025
SLUIJS VAN DER, A. (AAD) 1586
10470 Tata Steel Chess Tournament 2026 Tienkampen · Wednesday 28 January 2026
DYKSINSKI, P. (PATRYK) 1611
10470 Tata Steel Chess Tournament 2026 Tienkampen · Monday 26 January 2026
SCHRAM, J. (JOOST) 1628
10470 Tata Steel Chess Tournament 2026 Tienkampen · Sunday 1 February 2026
Tata Steel Chess Tournament 2026 Tienkampen Friday 16 January 2026 +2–4=3 -1.7
NHSB Herfstveteranen schaaktoernooi 2025 Groep C ronde 7 en 8 Wednesday 15 October 2025 +0–0=1 -2.0
NHSB Herfstveteranen schaaktoernooi 2025 Groep C Wednesday 15 October 2025 +2–2=2 -4.7
NHSB Lenteveteranentoernooi 2026 Groep B 2026 Wednesday 4 March 2026 +5–1=1 +53.5
KNSB competitie 2025-2026 Klasse 6 ronde 1 Saturday 20 September 2025 +0–1=0
NHSB-competitie 2025-2026 Viertallen A t/m 29-03-2026 Monday 1 September 2025 +1–0=1 +22.9
NHSB-competitie 2025-2026 Viertallen A t/m 15-02-2026 Monday 1 September 2025 +0–0=1
NHSB-competitie 2025-2026 Viertallen A t/m 18-01-2026 Monday 1 September 2025 +0–1=0 -6.3
NHSB-competitie 2025-2026 Viertallen A t/m 14-12-2025 Monday 1 September 2025 +1–0=0
NHSB-competitie 2025-2026 Viertallen A t/m 16-11-2025 Monday 1 September 2025 +1–0=0
NHSB Lenteveteranenkampioenschap 2025 Groep 3 Wednesday 5 March 2025 +1–2=2 -14.5

Team Competition

Current team
Providercheck.nl Magnus 2
Klasse 5F · 2023-2024 · 2 games

Rating History

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Peak Ratings

Classic 1589 May 1, 2026
Rapid 1535 May 1, 2026
Blitz 1535 May 1, 2026

Games

Wins 13
Losses 11
Draws 11
Win Rate 37%

Performance by Color

Color Wins Draws Losses Win Rate
White 6 5 8 32%
Black 7 6 3 44%

Recent Matches

Dijker, P. (Pieter) (1568) Wednesday 22 April 2026 WIN +13.7
Meij, J.M. (Jim) (1529) Wednesday 15 April 2026 DRAW -0.2
Haverkort, E.J. (Eef) (1562) Wednesday 8 April 2026 WIN +13.4
Wit de, A. (Albert) (1222) Wednesday 1 April 2026 WIN +3.4
Witte, C.H. (Cees) (1571) Saturday 28 March 2026 WIN +14.5
Boesenkool, R. (Roel) (1633) Wednesday 25 March 2026 LOSS -8.4
Spoelstra, S. (Sietse) (1600) Wednesday 11 March 2026 WIN +15.5
Brouwer, R. (René) (1791) Monday 9 March 2026 DRAW +8.4
Folkertsma, P. (Peter) (1617) Wednesday 4 March 2026 WIN +16.1
Op 't Eijnde, D.G. (Don) Tuesday 10 February 2026 DRAW
Schram, J. (Joost) (1628) Sunday 1 February 2026 LOSS -8.8
Kruisselbrink, L. (Leo) (1585) Saturday 31 January 2026 WIN +14.8
Weerd de, H.A.C. (Bert) (1565) Friday 30 January 2026 DRAW +1.6
Sluijs van der, A. (Aad) (1586) Wednesday 28 January 2026 LOSS -10.2
Haverkort, E.J. (Eef) (1626) Tuesday 27 January 2026 DRAW +3.6
Dyksinski, P. (Patryk) (1611) Monday 26 January 2026 LOSS -9.4
Becker, J.G.R. (Jeffrey) (1611) Sunday 25 January 2026 WIN +15.6
Oostenbrugge van, G.J. (Gert-Jan) (1654) Saturday 24 January 2026 LOSS -8.0
Meij, J.M. (Jim) (1495) Friday 23 January 2026 DRAW -0.9
Olthof, J. (Jan) (1710) Tuesday 13 January 2026 LOSS -6.3