Compare

William Peterson Kszan

Follow

BRA · 33 yrs · K=40 · Peak 1418 (By May 2026)

Best performance: 1371 at Torneio de Xadrez de Aniversario dos 330 Anos da Cidade de Curitiba(Best of 2023)

World #=221344 live, down 2099#219,245 publishedBrazil #3273

NOV26 Rating

1418

Live Rating

1418.0

Change

0.0

Games Played

0

How live ratings are calculated

Rating History · Classical

Loading chart…
Official classical rating by month
ListRatingChange
Nov 202614180
Oct 202614180
Sep 202614180
Aug 202614180
Jul 202614180
Jun 202614180

Form · Classical

Form shows from 10 games. 9 classical games are on record so far.

Classical games since the November list

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

Last playedScore
CURITIBA CHESS OPEN 2026 - 18/04/26 a 21/04/26 - TORNEIO CLÁSSICO EM 7 RODADAS TORNEIO INTERNACIONAL DE XADREZ CIDADE DE CURITIBA LOCAL SOCIEDADE THALIA CENTROApr 18 – Apr 21TPR 12221/7

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

Event timeline · Classical

1 of 2 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.

Performance rating by month

2026: 1222 over 5 rated games

MonthGamesScoreAvg oppTPR
Apr5½15881222

Games count in the month they were played. Each month and year is one performance rating over all of its rated games.

Rated near William Peterson Kszan · Classical

World

  1. #=221344Aleksandra Mroz1418.0
  2. #=221344Jose Ramon Pombo Rama1418.0
  3. #=221344William Peterson Kszan1418.0
  4. #=221344Brynjar Th Saevarsson1418.0
  5. #=221344Daniele Puccini1418.0

Brazil

  1. #3271Victor Hugo Marques Azevedo1420.0
  2. #3272Manuela Schmitz De Freitas1419.0
  3. #3273William Peterson Kszan1418.0
  4. #=3274Iago Alkmin Dos Santos1417.0
  5. #=3274Rebeca Todon Franco1417.0

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