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Player profile

O'Connor, Jonathan

Standard: 2159 Rapid: 2099 Blitz: 2128 (last updated 2026-11-02)
FIDE ID: 2501112 (view FIDE profile)
Federation: IRL Sex: M Birth Year: 1963 Age: 63
Title: — Women's title: — Other title: — FOA title: —
Games: 14 Wins: 5 (36%) Draws: 4 (29%) Losses: 4 (29%) Other: 1
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Dossier

7 of 14 games analyzed.

Accuracy: 87.8%
Opened Nf3: 2/3Opened e4: 1/3
Castled kingside: 5Did not castle: 2Same-side castling: 2Opposite-side castling: 1
Fianchettoed kingside: 3Played on the kingside: 2Played in the center: 2Fianchettoed queenside: 1Played on the queenside: 1
Backward pawn: 6Space advantage: 5Kept the bishop pair: 4Active pieces: 4Sacrificed material: 4Avoided exchanges: 4Isolated pawn: 2Initiated exchanges: 2Played gambits: 1Accepted short draws: 1
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Openings

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As White 5 games 2W 2D 1L
Sicilian Defense 1 game 1W 0D 0L
O'Kelly Variation 1 game 1W 0D 0L
Yerevan System 1 game 1W 0D 0L
Ruy Lopez 1 game 0W 0D 1L
Morphy Defense 1 game 0W 0D 1L
Neo-Arkhangelsk Variation 1 game 0W 0D 1L
Lion Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
English Opening 1 game 0W 1D 0L
Symmetrical Variation 1 game 0W 1D 0L
Botvinnik System Reversed, with Nf3 1 game 0W 1D 0L
Réti Opening 1 game 0W 1D 0L
Anglo-Slav Variation 1 game 0W 1D 0L
with g3 1 game 0W 1D 0L
As Black 9 games 3W 2D 3L
King's Indian Defense 2 games 0W 1D 1L
Karpov System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Averbakh Variation 1 game 0W 1D 0L
Benoni Defense, Exchange Variation 1 game 0W 1D 0L
Sicilian Defense 2 games 2W 0D 0L
Old Sicilian 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Queen's Pawn Game 2 games 1W 0D 0L
Zukertort Variation 2 games 1W 0D 0L
(unspecified) 2 games 1W 0D 0L
London System 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Torre Attack 1 game 0W 0D 1L
Fianchetto Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Gambit Declined 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 21

This player's costliest moves in analyzed games. Can you find the winning move?

2024.02.03 · 37... Qxh5 (−35.5% win chance) *
Jonathan O'Connor
Gerard MacElligott
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2024.02.02 · 23... Qxf7 (−27.4% win chance) 1-0
Jonathan O'Connor
Kushal Jakhria
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2026.04.25 · 56... Ke7 (−26.2% win chance) 1-0
O'Connor, Jonathan
Gubanov, Oleg
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2024.02.03 · 18. Bxe5 (−23.5% win chance) 1/2-1/2
Brendan Lyons
Jonathan O'Connor
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View blunders & mistakes
Games Showing all 14 games
Date Event Round Color Opponent Result Accuracy % First moves