Format
OO
O`cuilleanain, Oisin
🇮🇪FIDE 2514249· Male· Ireland· Born in 2004
Follow Oisin O`cuilleanainTrack his monthly FIDE ratings, games, tournaments and more.
Oisin O`Cuilleanain, a 22-year-old Irish player, is rated 2206 — his current career high and ranked 24th among Irish players, and in the top 4% worldwide. He is on a breakout run, having gained +110 Elo over the past 12 months. 121 rated games in the past year (≈63/year long-term). Recent standard appearances include 2026 Malahide Millennium Tournament - Senior, The National Club championship 2026, and 4th International Open Chess Tournament Pafos Cyprus Group A. Also played 8 rapid (including The Irish Rapid Championship 2025) and 3 blitz events (including The Irish Blitz Championship 2025) recently. He reached Irish #24 in May 2026.
At junior level, he reached #2, #3 and #12 nationally in U20, U18 and U16.
Current rating
2206
Standard
Rpd1998·Blz2046
All-time high
2206
at best
Jun 2026 · age 22
Jun 2026 · age 22
Activity
97
games / yr avg. · ≈8/mo
115 past 12 mo · ≈10/mo
classical only
Very active
classical only
Very active
Signature stat
#24
#24 · Irish players · of 939
Career timeline
18 entries2026
Crossed 2200
at age 22
Jun 2026
All-time peak 2206
at age 22
Jun 2026
6-month rising streak
+60 Elo
Jun 2026
Peak Irish rank: #24
at age 22 · rated 2197
May 2026
2025
Re-crossed 2100
at age 21
Aug 2025
2024
Re-crossed 2100
at age 20
Aug 2024
Standard rating history
Peak
FIDE title
Threshold
First rated
Inactive period
COVID-19
Activity & highlights
Top opponent
Evolution
+120
2086 → 2206
Tournaments
23
109 games
Score
70.5/ 10964.7%
58W25D26L
Top 3 wins
Top 3 losses
1.[L]vsGerard MacElligottCM1,921·The Sligo Chess and Culture Festival Weekender 2026 Master·R2·-16.2
2.[L]vsHarilaos-Panagiotis Bardis2,015·4th International Open Chess Tournament Pafos Cyprus Group A·R6·-14.8
Last 12 months — tournaments
14 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | May 2026 | 4/6 | #4 | — | +5.6 |
Team | Apr 2026 | 4/5 | #6 | — | +24.0 |
Open Swiss | Apr 2026 | 5/9 | #23 | 2127 | -9.4 |
Team | Mar 2026 | 1/2 | #43 | — | +5.8 |
Swiss | Mar 2026 | 2.5/4 | #10 | 2213 | +6.2 |
Open Swiss | Feb 2026 | 4/4 | #8 | 2744 | -1.4 |
Team | Feb 2026 | 2/2 | #16 | 2576 | +3.8 |
Swiss | Jan 2026 | 4/5 | #3 | 2184 | +4.2 |
Team | Jan 2026 | 1/2 | #53 | — | +0.2 |
Open Swiss | Jan 2026 | 4/5 | #4 | 2293 | +17.6 |
Most-Played Opponents
vsJacob FlynnCM
🇮🇪IRL·2263
+4 −11 =8
23 games·last met May 2026
View head-to-head →
vsShane MelaughFM
🇮🇪IRL·2223
+4 −10 =7
21 games·last met Mar 2026
View head-to-head →
vsAndrey A. IvanovCM
🇮🇪IRL·2079
+13 −3 =2
18 games·last met Jan 2026
View head-to-head →
vsJason LiuFM
🇮🇪IRL·2252
+8 −5 =3
16 games·last met Jan 2026
View head-to-head →
vsAdam CollinsFM
🇮🇪IRL·2338
+1 −7 =7
15 games·last met Jan 2026
View head-to-head →
Rankings
/
Ireland
#24
out of 1,228 players
Europe
#5,482
in continent
World
#7,852
out of 400,000+
National ranking
Europe & World
Europe
World
Ireland
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Europe
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| 5482 | 2,206 | |
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