Oisin O`sullivan

IRL · 26 yrs · K=20 · Peak 1743 (Oct 2026)

Best performance: 1891 at Monthly 4th Sunday Quad B(Best of 2026)

World #=95816 live470#95,346 publishedIreland #475

OCT26 Rating

1743

Live Rating

1743.0

Change

0.0

Games Played

Rating History · Classical

Loading chart…

Classical games since the October list

No rated standard games this rating periodsince the OCT26 list (Oct 1, 2026)

	Last played	Score	TPR
	Michael Bradley Cup Cork County Chess Championship, 2026Sep 12 – Sep 13TPR 1798	3/5	1798

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

Event timeline · Classical

17 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.

Michael Bradley Cup Cork County Chess Championship, 20261798
Sep 2026Swisschess-results.com
#3 in 2026Score 3/5Opp avg 1726Start 1734
4th Sunday Quad - August, Cork1885
Aug 2026Round robinfederation source
#2 in 2026Score 2/3Opp avg 1760Start 1721
July 4th Sunday Quad C1732
Jul 2026Round robinfederation source
#4 in 2026Score 1½/3Opp avg 1732Start 1720
4th Sunday Quad, Cork Quad C—(1)
Jun 2026Individualchess-results.com
Score 1/1Opp avg 1733Start 1720
Monthly 4th Sunday Quad B1891
May 2026Round robinfederation source
Best of 2026Score 2/3Opp avg 1766Start 1705
Munster Chess Union Club League Division 2—(2)
Nov 2025 – Mar 2026Teamchess-results.com
Score 4½/7Opp avg 1858Start 1702
Kinsale Winter Open1543
Jan 2026Swissfederation source
#5 in 2026Score 2/5Opp avg 1668Start 1709
Limerick Open 20251820
Nov 2025Swissfederation source
Best of 2025Score 3/5Opp avg 1945Start 1702
Cork Congress 2025 - Majors1759
Oct 2025Swissfederation source
#3 in 2025Score 2/5Opp avg 1759Start 1695
Ennis Congress Cathal Walsh 20251687
May 2025Swissfederation source
#4 in 2025Score 2½/5Opp avg 1774Start 1697
The Sligo Tournament 2025 Championship1789
Jan – Feb 2025Swissfederation source
#2 in 2025Score 2½/5Opp avg 1789Start 1682
The Limerick Open 20241777
Nov 2024Swissfederation source
Best of 2024Score 3/5Opp avg 1777Start 1665
2024 Malahide Millennium Tournament - Intermediate1770
May 2024Swissfederation source
#2 in 2024Score 3½/6Opp avg 1770Start 1627
Ennis Congress u1700 Section 20241617
Feb 2024Swissfederation source
#3 in 2024Score 3½/5Opp avg 1468Start 1365
The Sligo Tournament 2024 Major1126
Feb 2024Swissfederation source
#4 in 2024Score 2/5Opp avg 1319Start 1365
UCD Congress 2023 Challengers—(2)
Nov 2023Swissfederation source
Score 4/5Opp avg 1339Start 1377
The 31st Cork Chess Congress 2023 Majors—(1)
Oct 2023Swissfederation source
Score 1½/5Opp avg 1633Start 1377

Rated near Oisin O`sullivan · Classical

World

#=95816Gregor Giering1743.0
#=95816Mishra Sudhir Kumar1743.0
#=95816Oisin O`sullivan1743.0
#=95816Aadhithyan E1743.0
#=95816Venkat Ramana R1743.0

Ireland

#=471Agnieszka Pozniak1745.0
#474Fred Armstrong1744.0
#475Oisin O`sullivan1743.0
#=476David Goggins1742.0
#=476Alan Macdonagh1742.0

Live ratings projected from the OCT26 published list · Not affiliated with FIDE