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Conor O`sullivan

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CAN · 38 yrs · K=40 · Peak 1491 (Mar 2026)

Best performance: 1349 at 2026 SCC & Chess4win Happy New Year Open U1900(Best of 2026)

World #=190562 live, up 3181#193,743 publishedCanada #1599Americas #23379among active players

NOV26 Rating

1491

Live Rating

1507.8

Change

+16.8

Games Played

1

How live ratings are calculated

Rating History · Classical

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Classical rating 1486 to 1491 since February 2026; peak 1491 in March 2026.

Official rating by month

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

ListClassical
Nov 20261491, 0, 0 games
Oct 20261491, 0, 0 games
Sep 20261491, 0, 0 games
Aug 20261491, 0, 0 games
Jul 20261491, 0, 0 games
Jun 20261491, 0, 0 games
May 20261491, 0, 0 games
Apr 20261491, 0, 0 games
Mar 20261491, +5, 0 games
Feb 20261486, 5 games

Form · Classical

oldest → latest

Unbeaten in the last 2 games (2 wins), since Oct 29. That is the longest unbeaten run of 2026.

From 13 classical games on record, the latest on Nov 12.

Classical games since the November list

Show gamesTournamentScoreChange
SCC Falling Leaves 2026 U1600Nov 5 – Dec 17TPR 22351/1+16.8

Best wins · Classical

From 9 rated classical games against rated opponents, 2025–2026

#OpponentRating
1, Robert J Armstrong, Nov 2026 · SCC Falling Leaves 2026 U1600, 1435
2, Joe Gao, Oct 2026 · SCC Howard Ridout Memorial Swiss 2026 U1600, 1427

Event timeline · Classical

4 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
202683½15381495
2025101674—

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

Recent opponents · Classical

Robert J Armstrong

Rated near Conor O`sullivan · Classical

World

  1. #=190562BOUNTHIENGTHAM SENGPHACHAN1507.8
  2. #=190562Giovanni Maria Rizzo1507.8
  3. #=190562Conor O`sullivan1507.8
  4. #=190562Francisco Jose Perez Gama1507.8
  5. #=190562Serdar Senel1507.8

Canada

  1. #=1597Charles Zirui Li1508.0
  2. #=1597Jace Oreta1508.0
  3. #1599Conor O`sullivan1507.8
  4. #=1600Niam Moses1507.0
  5. #=1600Jordan Wong1507.0

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