Player profile

Mejzr, Jan

Standard: 1967 Rapid: 1859 Blitz: 0 (last updated 2026-11-02)

FIDE ID: 342998 (view FIDE profile)

Federation: CZE Sex: M Birth Year: 1987 Age: 39

Title: — Women's title: — Other title: — FOA title: —

Games: 14 Wins: 6 (43%) Draws: 4 (29%) Losses: 4 (29%)

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Dossier

13 of 14 games analyzed.

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Openings

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As White 7 games 4W 2D 1L

Sicilian Defense 3 games 2W 1D 0L

Closed 2 games 1W 1D 0L

(unspecified) 1 game 0W 1D 0L

Traditional 1 game 1W 0D 0L

Smith-Morra Gambit Accepted 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Caro-Kann Defense 2 games 1W 0D 1L

Advance Variation 2 games 1W 0D 1L

Botvinnik-Carls Defense 1 game 0W 0D 1L

Bronstein Variation 1 game 1W 0D 0L

Scandinavian Defense 1 game 0W 1D 0L

Marshall Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Scotch Game 1 game 1W 0D 0L

Haxo Gambit 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

As Black 7 games 2W 2D 3L

Petrov's Defense 1 game 0W 0D 1L

Classical Attack 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

Czech Defense 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

English Opening 1 game 0W 0D 1L

King's English Variation 1 game 0W 0D 1L

Four Knights Variation, Fianchetto Line, with Nb6 1 game 0W 0D 1L

Indian Defense 1 game 0W 0D 1L

Spielmann-Indian 1 game 0W 0D 1L

(unspecified) 1 game 0W 0D 1L

King's Indian Attack 1 game 0W 1D 0L

Spassky Variation 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Bishop's Opening 1 game 0W 1D 0L

Boden-Kieseritzky Gambit 1 game 0W 1D 0L

(unspecified) 1 game 0W 1D 0L

Queen's Pawn Game 1 game 1W 0D 0L

(unspecified) 1 game 1W 0D 0L

Blunders Top 4 of 56

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

? · 34... Qh8 (−61.8% win chance) 1-0

Mejzr, Jan

Andrzejewski, Konrad

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? · 21. d7+ (−39.7% win chance) 0-1

Smekal, Lukas

Mejzr, Jan

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2023.07.05 · 24... Ne2+ (−38.5% win chance) 1/2-1/2

Jan Mejzr

Krystof Jan Pechanek

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? · 31... Kg7 (−35.9% win chance) 1-0

Mejzr, Jan

Andrzejewski, Konrad

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Games Showing all 14 games

Date	Event	Round	Opponent	Result	Accuracy %	First moves
	Round 8: Andrzejewski, Konrad - Mejzr, Jan	8.7	Andrzejewski, Konrad (1198572) (1764)	0	69.60%	1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6
	Round 7: Mejzr, Jan - Mongird, Lew	7.6	Mongird, Lew (91139228) (1501)	½	-	1. e4 c5 2. Nc3 d6 3. Bb5+ Bd7
	Round 6: Motl, Matyas - Mejzr, Jan	6.14	Motl, Matyas (23779624) (1760)	1	92.00%	1. e4 d6 2. d4 Nf6 3. Nc3 c6
	Round 4: Kampik, David - Mejzr, Jan	4.9	Kampik, David (397474) (1726)	0	89.50%	1. c4 e5 2. Nc3 Nf6 3. g3 d5
	Round 1: Mejzr, Jan - Smekal, Lukas	1.4	Smekal, Lukas (23770538) (1685)	0	77.80%	1. e4 c6 2. d4 d5 3. e5 c5
2023.07.09	Round 9: Jan Mejzr - Pavel Zak		2023.07.09 Pavel Zak	½	90.80%	1. e4 d5 2. exd5 Nf6 3. d4 Nxd5
2023.07.08	Round 8: Jan Mejzr - Linda Slivova		2023.07.08 Linda Slivova	1	94.10%	1. e4 c6 2. d4 d5 3. e5 Bf5
2023.07.07	Round 7: Frantisek Skokan - Jan Mejzr		2023.07.07 Frantisek Skokan	0	82.60%	1. d4 Nf6 2. Nf3 c5 3. c3 e6
2023.07.06	Round 6: Jan Mejzr - Jachym Fadrny		2023.07.06 Jachym Fadrny	1	96.40%	1. e4 c5 2. d4 cxd4 3. c3 dxc3
2023.07.05	Round 5: Krystof Jan Pechanek - Jan Mejzr		2023.07.05 Krystof Jan Pechanek	½	88.10%	1. Nf3 Nf6 2. g3 b5 3. a4 b4
2023.07.04	Round 4: Jan Mejzr - Lukas Zrust		2023.07.04 Lukas Zrust	1	74.70%	1. e4 c5 2. Nc3 Nc6 3. Bb5 Nd4
2023.07.03	Round 3: Martin Bukvaj - Jan Mejzr		2023.07.03 Martin Bukvaj	½	83.60%	1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4
2023.07.02	Round 2: Jan Mejzr - Daniel Kubicek		2023.07.02 Daniel Kubicek	1	95.30%	1. e4 e5 2. Nf3 Nc6 3. d4 exd4
2023.07.01	Round 1: Lukas Krejbich - Jan Mejzr		2023.07.01 Lukas Krejbich	1	82.90%	1. d4 d5 2. e3 c5 3. Nf3 Nc6