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Co Wiersma

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NED · 68 yrs · K=20 · Peak 1870 (Apr 2026)

Best performance: 2018 at Dutch Team Competition 2025-2026 Klasse 5E(Best of 2026)

World #=58825 live250#58,575 publishedNetherlands #=2485

OCT26 Rating

1861

Live Rating

1861.0

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 2026-2027 Klasse 4BSep 19 – Apr 17, 20270/1

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

Event timeline · Classical

17 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 Co Wiersma · Classical

World

  1. #=58825Willem Meyles1861.0
  2. #=58825Carla Graafland1861.0
  3. #=58825Co Wiersma1861.0
  4. #=58825Sjoerd Haver1861.0
  5. #=58825Tjeerd Siblesz1861.0

Netherlands

  1. #=2485Willem Meyles1861.0
  2. #=2485Carla Graafland1861.0
  3. #=2485Co Wiersma1861.0
  4. #=2485Sjoerd Haver1861.0
  5. #=2485Tjeerd Siblesz1861.0

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