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Player profile

Derejczyk, Mateusz

Standard: 2041 Rapid: 2052 Blitz: 2145 (last updated 2026-11-02)
FIDE ID: 21004188 (view FIDE profile)
Federation: POL Sex: M Birth Year: 2008 Age: 18
Title: — Women's title: — Other title: — FOA title: —
Games: 105 Wins: 37 (35%) Draws: 22 (21%) Losses: 46 (44%)
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Dossier

90 of 105 games analyzed.

Accuracy: 88.4%
Opened c4: 33/33
Castled kingside: 56Same-side castling: 52Did not castle: 7Castled queenside: 5Opposite-side castling: 5
Played on the queenside: 20Played in the center: 19Fianchettoed queenside: 19Played on the kingside: 13Fianchettoed kingside: 13
Active pieces: 50Space advantage: 45Sacrificed material: 44Initiated exchanges: 43Backward pawn: 39Kept the bishop pair: 37Isolated pawn: 33Avoided exchanges: 17Missed tactics: 12Played gambits: 7
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Openings

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As White 37 games 13W 7D 17L
English Opening 21 games 8W 6D 7L
King's English Variation 8 games 2W 2D 4L
(unspecified) 4 games 0W 1D 3L
Closed System 2 games 1W 1D 0L
Four Knights Variation, Fianchetto Line, with .. d6 1 game 1W 0D 0L
Four Knights Variation, Fianchetto Line, with Nb6 1 game 0W 0D 1L
Symmetrical Variation 5 games 3W 2D 0L
(unspecified) 2 games 1W 1D 0L
Two Knights Variation 2 games 1W 1D 0L
Rubinstein Variation 1 game 1W 0D 0L
(unspecified) 3 games 1W 0D 2L
(unspecified) 3 games 1W 0D 2L
Great Snake Variation 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
Anglo-Indian Defense 1 game 0W 0D 1L
Queen's Knight Variation 1 game 0W 0D 1L
Drill Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Anglo-Lithuanian Variation 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
Jaenisch Gambit 1 game 0W 1D 0L
(unspecified) 1 game 0W 1D 0L
King's Indian Defense 7 games 3W 0D 4L
Petrosian Variation 3 games 1W 0D 2L
(unspecified) 2 games 1W 0D 1L
Stein Defense 1 game 0W 0D 1L
Orthodox Variation 3 games 2W 0D 1L
(unspecified) 3 games 2W 0D 1L
Kazakh Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
French Defense 5 games 1W 0D 4L
Exchange Variation 4 games 1W 0D 3L
Monte Carlo Variation 4 games 1W 0D 3L
Steiner Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Caro-Kann Defense 2 games 1W 0D 1L
Panov Attack 2 games 1W 0D 1L
Modern Defense, Mieses Line 2 games 1W 0D 1L
Semi-Slav Defense 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Pterodactyl Defense 1 game 0W 1D 0L
Queen Pterodactyl 1 game 0W 1D 0L
Quiet Line 1 game 0W 1D 0L
As Black 37 games 11W 9D 17L
Caro-Kann Defense 16 games 6W 4D 6L
Advance Variation 6 games 2W 1D 3L
Short Variation 4 games 1W 0D 3L
(unspecified) 1 game 1W 0D 0L
Tal Variation 1 game 0W 1D 0L
Classical Variation 3 games 2W 1D 0L
(unspecified) 1 game 1W 0D 0L
Main Line 1 game 0W 1D 0L
Flohr Variation 1 game 1W 0D 0L
Exchange Variation 3 games 2W 0D 1L
(unspecified) 3 games 2W 0D 1L
Panov Attack 2 games 0W 1D 1L
Main Line 2 games 0W 1D 1L
Campomanes Attack 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Two Knights Attack 1 game 0W 1D 0L
Mindeno Variation, Exchange Line 1 game 0W 1D 0L
Queen's Gambit Declined 4 games 0W 2D 2L
Charousek Variation 2 games 0W 0D 2L
(unspecified) 2 games 0W 0D 2L
Harrwitz Attack 2 games 0W 2D 0L
Orthodox Defense 2 games 0W 2D 0L
Queen's Pawn Game 4 games 2W 0D 2L
Symmetrical Variation 2 games 1W 0D 1L
Pseudo-Catalan 1 game 0W 0D 1L
(unspecified) 1 game 1W 0D 0L
London System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Colle System 1 game 1W 0D 0L
(unspecified) 1 game 1W 0D 0L
French Defense 2 games 1W 1D 0L
Winawer Variation 1 game 1W 0D 0L
Poisoned Pawn Variation Declined 1 game 1W 0D 0L
Tarrasch Variation 1 game 0W 1D 0L
Chistyakov Defense 1 game 0W 1D 0L
English Opening 2 games 1W 0D 1L
King's English Variation 1 game 1W 0D 0L
Two Knights Variation 1 game 1W 0D 0L
Four Knights System 1 game 0W 0D 1L
Nimzowitsch Variation 1 game 0W 0D 1L
King's Indian Attack 2 games 0W 1D 1L
(unspecified) 2 games 0W 1D 1L
(unspecified) 2 games 0W 1D 1L
Zukertort Opening 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
King's Indian Attack, with e6 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Nimzo-Larsen Attack 1 game 0W 0D 1L
Classical Variation 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Réti Opening 1 game 0W 1D 0L
Anglo-Slav Variation 1 game 0W 1D 0L
London Defensive System 1 game 0W 1D 0L
Catalan Opening 1 game 0W 0D 1L
Closed 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Rapport-Jobava System 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
(unspecified) 1 game 0W 0D 1L
Nimzo-Indian Defense 1 game 1W 0D 0L
Normal Variation 1 game 1W 0D 0L
Gligoric System, Exchange Variation 1 game 1W 0D 0L
Blunders Top 4 of 440

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

? · 39... Ra4 (−91.8% win chance) 0-1
Derejczyk, Mateusz
Rzewnicki, Pawel
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2025.09.13 · 59... Rg6 (−66.3% win chance) 1-0
Derejczyk, Mateusz
Pakleza, Zbigniew
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2026.07.13 · 25. Nh3 (−62.8% win chance) 1-0
Skrzypinski, Jan
Derejczyk, Mateusz
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2026.08.03 · 44... Bh4 (−60.3% win chance) 1-0
Derejczyk, Mateusz
Baginskaite, Kamile
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View blunders & mistakes
Games Showing all 105 games
Date Event Round Color Opponent Result Accuracy % First moves