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Klaas Siewertsen

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NED · 79 yrs · K=40 · Peak 1582 (Aug 2025)

Best performance: 1588 at Amsterdam Science Park Chess Tournament 2024 - C(Best of 2024)

World #=173783 live743#173,040 publishedNetherlands #=4650

OCT26 Rating

1538

Live Rating

1538.0

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
Amsterdam Chess Festival 2026 - Group CJul 11 – Jul 19TPR 14664/9

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

Event timeline · Classical

1 of 3 events · All years

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 Klaas Siewertsen · Classical

World

  1. #=173783Marcus Guan1538.0
  2. #=173783Kendrick Johnson1538.0
  3. #=173783Klaas Siewertsen1538.0
  4. #=173783Roman Coskun1538.0
  5. #=173783Igor Gorgolewski1538.0

Netherlands

  1. #=4646Gilead Van Duuren1539.0
  2. #=4646Reinout Sluijmer1539.0
  3. #=4650Klaas Siewertsen1538.0
  4. #=4650Roman Coskun1538.0
  5. #=4652Phoebe Witte1537.0

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