Compare

William Sun

Follow

NZL · 11 yrs · K=40 · Peak 1621 (By Sep 2026)

Best performance: 1669 at Kapiti Junior Chess Championship 2026(Best of 2026)

World #=123376 live, down 2056#121,320 publishedNew Zealand #313Asia #=36840among active players

Rapid rating

1577

FIDE’s November 2026 list. No rated games since, so the live rating is the same.

On FIDE’s list since Sep 2026

How live ratings are calculated

Rating History · Rapid

Loading chart…

Rapid rating 1621 to 1577 since September 2026; peak 1621 by September 2026.

Official rating by month

Each month: the rating, its change from the list before, and the rated games FIDE counted.

ListClassicalRapidBlitz
Nov 2026unrated1577, 0, 0 games1462, 0, 0 games
Oct 2026unrated1577, -44, 3 games1462, 7 games
Sep 2026unrated1621, 9 gamesunrated
Mar 20261591, 6 gamesunratedunrated

Form · Rapid

oldest → latest

Unbeaten in the last 2 games (1 win, 1 draw), since Sep 27. That is the longest unbeaten run of 2026.

From 34 rapid games on record, the latest on Sep 27.

Rapid games since the November list

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

Last playedScore
School Chess Development National Individual Final Open DivisionSep 27TPR 13272½/5

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

Best wins · Rapid

From 19 rated rapid games against rated opponents, 2024–2026

#OpponentRating
1, Karthikeyan Annamalai, May 2026 · Kapiti Rapid 2026, 1659
2, Hanson Li, Aug 2026 · Kapiti Junior Chess Championship 2026, 1634
3, Rishi Konduri, Aug 2026 · Kapiti Junior Chess Championship 2026, 1533

* No rapid rating yet, so FIDE rates the game at the player's classical rating.

Event timeline · Rapid

6 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.

Performance rating by year

YearGamesScoreAvg oppTPR
202612416451520
2025601754954
2024101672—

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 Sun · Rapid

World

  1. #=123376Vihaan M Gupta1577.0
  2. #=123376Bandeep Sharma1577.0
  3. #=123376William Sun1577.0
  4. #=123376Neil Milson1577.0
  5. #=123376Sayat Bekpaev1577.0

New Zealand

  1. #=309Zhiwang (raymond) Ma1578.0
  2. #=309Peter Lynch1578.0
  3. #313William Sun1577.0
  4. #314Singh Jasreman Preet1576.0
  5. #=315Manoj Asrani1575.0

Live rating: FIDE’s November list plus every rated game played since. Not affiliated with FIDE.