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William Si

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NZL · 13 yrs · K=40 · Peak 1545 (Apr 2025)

Best performance: 1848 at August Summit Rookies Junior Rapid U1600(Best of 2024)

World #=331521New Zealand #=852among all players, November list

Rapid rating

1544

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

On FIDE’s list since Feb 2022 · Inactive on FIDE’s list

How live ratings are calculated

Rating History · Rapid

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Rapid rating unchanged at 1544 over the last 12 months; peak 1545 in April 2025.

Official rating by month

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

ListClassicalRapidBlitz
Nov 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
Oct 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
Sep 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
Aug 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
Jul 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
Jun 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
May 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
Apr 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
Mar 20261457, 0, 0 games1544, 0, 0 games1584, 0, 0 games
Feb 20261457, -1, 0 games1544, -1, 0 games1584, -1, 0 games
Jan 20261458, -20, 4 games1545, +1, 0 games1585, +1, 0 games
Dec 20251478, 0, 0 games1544, 0, 0 games1584, 0, 0 games

Form · Rapid

oldest → latest

From 133 rapid games on record, the latest on Jan 12, 2025.

Rapid games since the November list

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

Last playedScore
New Zealand Rapid 2025Jan 11, 2025 – Jan 12, 2025TPR 16414/9

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

Best wins · Rapid

From 81 rated rapid games against rated opponents, 2022–2025

#OpponentRating
1, Noah Yinuo Wang, Jan 2025 · New Zealand Rapid 2025, 1648
2, Robert Hurndell, 2 wins, Jan 2025 · New Zealand Rapid 2025, 1635
3, Hamish R Gold, Jan 2023 · 2023 New Zealand Rapid, 1581

Event timeline · Rapid

21 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
20258317281641
202413615111482
202230712921081

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 Si · Rapid · November list, all players

World

  1. #=331521Shrivastava Udbhav Upendra1544
  2. #=331521Shyam Kumar Mandal1544
  3. #=331521William Si1544
  4. #=331521Artem Sidorov1544
  5. #=331521Platon Sidorov1544

New Zealand

  1. #=849Alexander Weidelt1545
  2. #=852Chris Wang1544
  3. #=852William Si1544
  4. #=852Kevin Jeong1544
  5. #=852Kishore Panth1544

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