Oisin O`sullivan

IRL Born 2000 Male
FIDE ID
2518082

Player overview

Oisin O`sullivan’s highest recorded classical FIDE rating is 1743 (October 2026). On the November 2026 FIDE list, Oisin O`sullivan ranks #99426 worldwide and #501 in Ireland among active classical players.

FIDE ratings

1733

Classical

Published FIDE

1780

Rapid

Published FIDE

1788

Blitz

Published FIDE

Official classical ranks

World rank
#99426
National rank · IRL
#501

Active players · Nov 2026 FIDE list ⓘ

FIDE rating history

Highest recorded rating
1743 Oct 2026
Recorded years
2023–2026
Archived games
1

Based on available monthly lists and saved games.

FIDE rating history

Published rating lists through Nov 2026.

View rating lists

FIDE tournaments

DateTournamentTypeScore
2026-10-16Cork Congress 2026 - MaestrosClassical2

All tournament results

Available Games

Published games available in our archive; coverage varies by tournament. Archive last checked: 2026-11-09 (UTC).

Online games are identified from known tournament names, playing sites and PGN mode. Other games are listed as OTB (over-the-board).

# Date Event Site Round White Black Result Moves View
1 2026-10-16 Cork Congress 2026 | Maestros (1675-1849) Cork, Ireland 1.1 Taylor-Hewins, Romani O`sullivan, Oisin 1/2-1/2 29 Open