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Player profile

Martinez Serna, Juan Esteban

Standard: 2108 Rapid: 1867 Blitz: 2043 (last updated 2026-11-02)
FIDE ID: 4488334 (view FIDE profile)
Federation: COL Sex: M Birth Year: 2007 Age: 19
Title: — Women's title: — Other title: — FOA title: —
Games: 49 Wins: 20 (41%) Draws: 14 (29%) Losses: 15 (31%)
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Dossier

43 of 49 games analyzed.

Accuracy: 89.5%
Opened d4: 16/16
Castled kingside: 27Same-side castling: 25Did not castle: 7Opposite-side castling: 2
Fianchettoed kingside: 16Played in the center: 11Played on the kingside: 7Played on the queenside: 5Fianchettoed queenside: 4
Sacrificed material: 24Initiated exchanges: 24Kept the bishop pair: 23Active pieces: 22Space advantage: 20Isolated pawn: 18Backward pawn: 18Missed tactics: 6Played gambits: 5Accepted short draws: 3
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Openings

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As White 19 games 11W 5D 3L
Queen's Gambit Declined 6 games 2W 3D 1L
(unspecified) 2 games 2W 0D 0L
(unspecified) 2 games 2W 0D 0L
Harrwitz Attack 2 games 0W 1D 1L
Orthodox Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 1D 0L
Austrian Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Ragozin Defense 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Queen's Indian Defense 6 games 3W 1D 2L
Fianchetto Variation 4 games 1W 1D 2L
Check Variation, Intermezzo Line 2 games 1W 0D 1L
Nimzowitsch Variation, Quiet Line 1 game 0W 1D 0L
Traditional Line 1 game 0W 0D 1L
Yates Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Riumin Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Semi-Slav Defense 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
(unspecified) 2 games 1W 1D 0L
King's Indian Defense 1 game 1W 0D 0L
Sämisch Variation 1 game 1W 0D 0L
Sämisch Gambit 1 game 1W 0D 0L
Slav Defense 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Dutch Defense 1 game 1W 0D 0L
Stonewall Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Benko Gambit Accepted 1 game 1W 0D 0L
Fully Accepted Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Benoni Defense 1 game 1W 0D 0L
Classical Variation 1 game 1W 0D 0L
Czerniak Defense, Tal Line 1 game 1W 0D 0L
As Black 21 games 6W 6D 9L
Sicilian Defense 14 games 5W 3D 6L
Dragon Variation 4 games 2W 1D 1L
Yugoslav Attack, Modern Line 1 game 0W 1D 0L
Yugoslav Attack, Czerniak Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Yugoslav Attack, Hungarian Dragon 1 game 0W 0D 1L
Moscow Variation 3 games 0W 1D 2L
(unspecified) 2 games 0W 1D 1L
Main Line 1 game 0W 0D 1L
Alapin Variation 2 games 1W 0D 1L
Barmen Defense 1 game 0W 0D 1L
(unspecified) 1 game 1W 0D 0L
Modern Variations 2 games 1W 0D 1L
(unspecified) 2 games 1W 0D 1L
Chekhover Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Delayed Alapin Variation 1 game 0W 1D 0L
Basman-Palatnik Double Gambit 1 game 0W 1D 0L
Prins Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Queen's Pawn Game 4 games 1W 2D 1L
Accelerated London System 2 games 1W 1D 0L
Steinitz Countergambit 2 games 1W 1D 0L
Levitsky Attack 2 games 0W 1D 1L
(unspecified) 2 games 0W 1D 1L
Catalan Opening 1 game 0W 1D 0L
Closed Variation 1 game 0W 1D 0L
Traditional Variation 1 game 0W 1D 0L
English Opening 1 game 0W 0D 1L
Caro-Kann Defensive System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
King's Indian Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Blunders Top 4 of 168

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

2026.09.26 · 61. Ke4 (−46.8% win chance) 1-0
Cordoba Perez, Jeronimo
Martinez Serna, Juan Esteban
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2024.05.27 · 33... Be4 (−46.5% win chance) 1-0
Martinez Serna, Juan Esteban
Vasquez Toledo, Cristian
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2025.10.10 · 50. g4+ (−42.9% win chance) 1/2-1/2
Herize Godoy, Miguel Andres
Martinez Serna, Juan Esteban
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2026.09.26 · 54. Rg7 (−40.8% win chance) 1-0
Loaiza Cuervo, Santiago
Martinez Serna, Juan Esteban
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View blunders & mistakes
Games Showing all 49 games
Date Event Round Color Opponent Result Accuracy % First moves