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Whitman Kosak

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USA · 19 yrs · K=20 · Peak 1908 (May 2024)

Best performance: 2165 at 28th Annual Mid-America Open - Major(Best of 2024)

World #=59900 live, down 513#59,387 publishedUnited States #=1662

NOV26 Rating

1859

Live Rating

1859.0

Change

0.0

Games Played

0

How live ratings are calculated

Rating History · Classical

Loading chart…
Official classical rating by month
ListRatingChange
Nov 202618590
Oct 202618590
Sep 202618590
Aug 202618590
Jul 202618590
Jun 202618590
May 202618590
Apr 202618590
Mar 202618590
Feb 20261859-5
Jan 202618640
Dec 20251864-2

Classical games since the November list

No rated standard games this rating periodsince the NOV26 list (Nov 1, 2026)

Last playedScore
2026 Tim Just Winter Open XLII - U2100Jan 9 – Jan 11TPR 18233/5

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

Event timeline · Classical

1 of 13 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 Whitman Kosak · Classical

World

  1. #=59900Juan Santiago Cabrera Rincones1859.0
  2. #=59900Jay Feng1859.0
  3. #=59900Whitman Kosak1859.0
  4. #=59900Summer Loh1859.0
  5. #=59900Robert LaChaussee1859.0

United States

  1. #=1662Carlos Boteo1859.0
  2. #=1662Jay Feng1859.0
  3. #=1662Whitman Kosak1859.0
  4. #=1662Summer Loh1859.0
  5. #=1662Robert LaChaussee1859.0

Live ratings projected from the NOV26 published list · Not affiliated with FIDE