What is Oskar Wieczorek's FIDE rating?

Oskar Wieczorek's FIDE rating is 2495 standard, 2339 rapid, 2362 blitz. Chess Stalker tracks it together with Oskar Wieczorek's over-the-board games and opening repertoire.

How many OTB games has Oskar Wieczorek played?

The Chess Stalker database holds 2,167 over-the-board games by Oskar Wieczorek (1,007 classical, 150 rapid, 1,010 blitz), with 48% wins. The full list, with openings and results, is on Oskar Wieczorek's Chess Stalker profile.

How do I prepare against Oskar Wieczorek?

Open Oskar Wieczorek's free Chess Stalker report: opening repertoire with results per line as White and Black, recurring weaknesses and blunder patterns evaluated with Stockfish, and recent games. Then rehearse against the Twin Bot, which imitates Oskar Wieczorek's style, before facing them.

Oskar Wieczorek

TitleGrandmasterFederationPolandBorn1994FIDE ID1133950

Classical2495

Rapid2339

Blitz2362

Games2,167

W · D · LWon · Drawn · Lost48 / 21 / 31

Peak2512May 2023

Rating history

2300

2400

2500

Oct

2024

Apr

Jul

Oct

2025

Apr

Jul

Oct

2026

Apr

Jul

Oct

Oct 2023Nov 2026

Classical2495Rapid2339Blitz2362no games played

Accuracy by phase

96.2%Opening92.5%Middlegame93.7%Endgame

Clutch factor

Insufficient data

Play style

Elite accuracy: 92.5% average

Very consistent (89%)

Very precise: only 0.1 blunders/game

Dominates 1.Nf3 as

(77% in 45 games)

Recent games

Pekala, Dawid(2068)

Polish Rapid Championship 2026 · 3 Oct 2026

1–0

Bilochenko, Matvii(2038)

Polish Rapid Championship 2026 · 3 Oct 2026

1–0

Bartoszewicz, Marcin(1856)

Polish Rapid Championship 2026 · 3 Oct 2026

½–½

Kiszkiel, Oskar(2272)

Polish Rapid Championship 2026 · 3 Oct 2026

1–0

Adhiban, B.(2536)

57th Italian Teams Group A · 28 Apr 2026

0–1

Play against Wieczorek's Twin

Their real openings, level & style

Practice against a bot that uses their real openings and playing style

Based on

2,167 games

Based on 2,167 games

Openings

1,077 games as White · scores 62.6%

Weaknesses

where they slip as ♔ White

Modern Defense1.e4 g6 2.d4 ♝g721 games, last played 3 years ago52.4%losses

Strengths

what holds up for them as ♔ White

Sicilian: d6 Systems1.e4 c5 2.♞f3 d6185 games, last played 6 months ago56.8%wins

Four Knights1.e4 e5 2.♞f3 ♞c6 3.♞c3 ♞f684 games, last played 3 weeks ago56.0%wins

By family

open a family to see its lines

PROTime controls · Years · Events

2,167 games in scope

LineECOGamesLast playedWins · draws · lossesScorevs 62.6%

B22–B504112y

54%1729%

62.2%—

C20–C461313w

52%1533%

59.5%−3.0 pts

B10–B151102y

62%1325%

68.2%+5.6 pts

C001058m

53%22%25%

64.3%—

B00–B06642y

45%1738%

53.9%−8.7 pts

A00–A04633w

59%29%12

73.0%+10.4 pts

C60–C70584y

36%41%23%

56.9%−5.7 pts

A10–A30442y

50%25%25%

62.5%—

Mistakes

Problematic pieces

Insufficient data

Critical moment

Insufficient data

Error heatmap · Critical squaresError heatmap

Insufficient data

Critical blunders

Tactical errors analyzed with Stockfish

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Endgame statistics

174 endgames (52.1%) · force Opposite-Color Bishops (0%)

Strongest

79.4%

R+Bishop vs R+Knight

Weakest

60.6%

Pure Pawn

Reaches Endgame

52.1%

174 / 334

B vs N Pref

52.4%·47.8%

prefers the bishop

PiecesTypeWin %games

Rook + Equal Minors

56%44%

77.9%353g

R+Bishop vs R+Knight

59%41%

79.4%306g

Rook vs Minor (Exchange)

49%50%

73.7%281g

Rook vs Rook

48%50%

72.6%252g

Rook vs Two Minors

56%44%

78.1%160g

Pure Pawn

36%50%14

60.6%109g

Rook + Equal Minors77.9%353g

R+Bishop vs R+Knight79.4%306g

Rook vs Minor (Exchange)73.7%281g

Rook vs Rook72.6%252g

Rook vs Two Minors78.1%160g

Pure Pawn60.6%109g

Weak in Opposite-Color Bishops: only 0% win rate (8 games). Force this endgameShow all 14 types

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Repertoire

PROTime controls · Years · Events

2,167 games in scope

Explore the repertoireevery move played, ranked by frequency

1,077 games53%W19%D28%L

1,077games in this linewon 53%, drew 19%, lost 28%

Move

1. e4

9583w

53%18%29%

62%

1. ♞f3

453w

60%33%

77%

1. c4

442y

50%25%25%

63%

1. d4

124y

42%50%8

67%

1. b3

63y

83%17

92%

1. ♞c3

69y

50%1733%

58%

1. g3

53y

40%20%40%

50%

1. c3

15y

100%

Scouting report: Oskar Wieczorek (GM, POL)

Oskar Wieczorek

Rating history

Play style

Recent games

Play against Wieczorek's Twin

Openings

Weaknesses

Strengths

By family

Mistakes

Critical blunders

Endgame statistics

Repertoire