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O`callaghan, Cian

🇮🇪

FIDEFIDE 2519950· Male· Ireland· Born in 1999

Follow Cian O`callaghanTrack his monthly FIDE ratings, games, tournaments and more.

Cian O`Callaghan, a 27-year-old Irish player, is rated 1641. He plays occasionally (8 games in the last 12 months). Recent standard appearances include Cork Club Championship 2025-26 round 6, Cork Club Championship 2025-26 round 5, and Kinsale Winter Open. His peak of 1681 was reached at age 27 (Feb 2026).

Current rating

1641

Standard

Rpd—·Blz—

All-time high

1681

−40 pts below
Feb 2026 · age 27

Activity

19

games / yr avg. · ≈2/mo

8 past 12 mo · ≈1/mo
classical only
Moderately active

Signature stat

#131,581

#131,581 · players worldwide · of 218,279

Career timeline

5 entries
2026
Crossed 1600
at age 27
Feb 2026
Crossed 1500
at age 27
Feb 2026
Crossed 1400
at age 27
Feb 2026
All-time peak 1681
at age 27 · −40 from today
Feb 2026
First FIDE rating
1681 · at age 27
Feb 2026

Standard rating history

Peak
FIDE title
Threshold
First rated

Activity & highlights

Top opponent
vs Phillip Mootseng 1,713
Kinsale Winter Open · Jan 2026 · +21.8 Elo
Evolution
-40
1681 → 1641
Tournaments
5
17 games
Score
2/ 1711.8%
8W1D8L
Top 2 wins
1.[W]vsPhillip Mootseng1,713·Kinsale Winter Open·R3·+21.8
2.[W]vsKarl-Heinz Rinne1,653·Kinsale Winter Open·R1·+18.4
Top 3 losses
1.[L]vsDavid O`kelly1,759·Kinsale Winter Open·R2·-15.6
2.[L]vsPadraig Mac Carthaigh1,806·Kinsale Winter Open·R5·-13.1
3.[L]vsMihovil Niko Cogelja1,846·Kinsale Winter Open·R4·-11.2

Last 12 months — tournaments

5 events
EventDateScoreRankPerfΔ Elo
Cork Club Championship 2025-26 round 7
Open Swiss
May 20260/1#18—-17.6
Cork Club Championship 2025-26 round 6
Open Swiss
Mar 20260/1#19—-21.6
Cork Club Championship 2025-26 round 5
Open Swiss
Jan 20260/1#159670.0
Kinsale Winter Open
Open Swiss
Jan 20262/5#2316830.0
Cork Club Championship 2025-26 Round 1
Open Swiss
Sep 20250/1#1211260.0
Worst Elo result: Cork Club Championship 2025-26 round 6 (-21.6 Elo, finished #19).

Rankings

/
Ireland
#709
out of 1,228 players
Europe
#89,883
in continent
World
#131,575
out of 400,000+

National ranking

Europe & World

Europe
World
Ireland
1
🇮🇪Collins, Sam E.Follow Sam E. CollinsTrack their monthly FIDE ratings, games, tournaments and more.
2,462
2
🇮🇪Kanyamarala, TarunFollow Tarun KanyamaralaTrack their monthly FIDE ratings, games, tournaments and more.
2,426
3
🇮🇪O`Gorman, TomFollow Tom O`GormanTrack their monthly FIDE ratings, games, tournaments and more.
2,385
4
🇮🇪Jessel, StephenFollow Stephen JesselTrack their monthly FIDE ratings, games, tournaments and more.
2,357
5
🇮🇪Quinn, MarkFollow Mark QuinnTrack their monthly FIDE ratings, games, tournaments and more.
2,354
6
🇮🇪Baburin, AlexanderFollow Alexander BaburinTrack their monthly FIDE ratings, games, tournaments and more.
2,344
7
🇮🇪Collins, AdamFollow Adam CollinsTrack their monthly FIDE ratings, games, tournaments and more.
2,338
8
🇮🇪Fitzsimons, DavidFollow David FitzsimonsTrack their monthly FIDE ratings, games, tournaments and more.
2,307
9
🇮🇪Tureshbayev, AnuarFollow Anuar TureshbayevTrack their monthly FIDE ratings, games, tournaments and more.
2,304
10
🇮🇪Venkatesan, KavinFollow Kavin VenkatesanTrack their monthly FIDE ratings, games, tournaments and more.
2,297
...
709🇮🇪O`callaghan, Cian1,641
Europe
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,841
2
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,767
3
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,764
4
🇫🇷Firouzja, AlirezaFollow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more.
2,744
5
🇵🇱Duda, Jan-KrzysztofFollow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more.
2,739
6
🇭🇺Rapport, RichardFollow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more.
2,729
7
🇳🇱Van Foreest, JordenFollow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more.
2,728
8
🇫🇷Vachier-Lagrave, MaximeFollow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more.
2,721
9
🇦🇿Mamedyarov, ShakhriyarFollow Shakhriyar MamedyarovTrack their monthly FIDE ratings, games, tournaments and more.
2,717
10
🇹🇷Erdogmus, Yagiz KaanFollow Yagiz Kaan ErdogmusTrack their monthly FIDE ratings, games, tournaments and more.
2,713
...
89883🇮🇪O`callaghan, Cian1,641
World
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,841
2
🇺🇸Nakamura, HikaruFollow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more.
2,792
2
🇺🇸Caruana, FabianoFollow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more.
2,792
4
🇺🇿Abdusattorov, NodirbekFollow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more.
2,777
4
🇺🇿Sindarov, JavokhirFollow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more.
2,777
6
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,767
7
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,764
8
🇮🇳Erigaisi ArjunFollow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more.
2,761
9
🇺🇸So, WesleyFollow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more.
2,753
9
🇨🇳Wei, YiFollow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more.
2,753
...
131575🇮🇪O`callaghan, Cian1,641