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Willem De Koster

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NED · 42 yrs · K=40 · Peak 1760 (May 2025)

Best performance: 1706 at Tata Steel Chess 2025 - Weekendvierkampen(Best of 2025)

World #=89910 live396#89,514 publishedNetherlands #=3499

OCT26 Rating

1760

Live Rating

1760.0

Change

0.0

Games Played

0

Rating History · Classical

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Classical games since the October list

No rated standard games this rating periodsince the OCT26 list (Oct 1, 2026)

Last playedScore
Dutch Team Competition 2025-2026 Klasse 6HOct 4, 2025 – Mar 281/1

The live rating moves only when new rated games are played. Until then it matches the published rating.

Event timeline · Classical

7 events

Events before the current rating period show the performance, not a rating change.

Live events show the rating change; earlier events show the performance rating.

Rated near Willem De Koster · Classical

World

  1. #=89910Merlijn Heijmans1760.0
  2. #=89910Benjamin Beardsley1760.0
  3. #=89910Willem De Koster1760.0
  4. #=89910Jacek Cwik1760.0
  5. #=89910Jacek Kucia1760.0

Netherlands

  1. #=3499Merlijn Heijmans1760.0
  2. #=3499Benjamin Beardsley1760.0
  3. #=3499Willem De Koster1760.0
  4. #=3499Mark Van de Vooren1760.0
  5. #=3499Dani Opdam1760.0

Live ratings projected from the OCT26 published list · Not affiliated with FIDE