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Jacek Kosturkiewicz

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POL · 67 yrs · K=20 · Peak 2202 (Apr 2003)

Best performance: 2189 at DMP Małopolska III liga 2008(Best of 2008)

World #=62589 live, down 660#61,929 publishedPoland #=1547

NOV26 Rating

1850

Live Rating

1850.0

Change

0.0

Games Played

0

How live ratings are calculated

Rating History · Classical

Loading chart…
Official classical rating by month
ListRatingChange
Nov 202618500
Oct 202618500
Sep 202618500
Aug 202618500
Jul 202618500
Jun 202618500
May 202618500
Apr 202618500
Mar 202618500
Feb 20261850-45
Jan 202618950
Dec 202518950

Form · Classical

oldest → latest

Some of this player's 2026 games are not on record yet, so no unbeaten run is shown.

From 127 classical games on record, the latest on Jan 4.

Classical games since the November list

No rated standard games this rating periodsince the NOV26 list (Nov 1, 2026)

Last playedScore
XXXVI Miedzynarodowy Festiwal Szachowy CRACOVIA 2025 Grupa BDec 27, 2025 – Jan 4TPR 17102½/9

The live rating moves only when new rated games are played. Until then it matches the published rating.

Best wins · Classical

From 118 rated classical games against rated opponents, 2006–2026

#OpponentRating
1, Andrzej Szyszko-Bohusz, May 2008 · Internation Chess Championship of Malopolska, group A, 2058
2, Wiktoria Wierzbicka, Nov 2008 · DMP Małopolska III liga 2008, 2056
3, Marcin Chmiel, Apr 2014 · Miedzynarodowe Szachowe Mistrzostwa Malopolski Seniorow i Juniorow 2014 - Grupa A, 2050

Openings · Classical

From the moves of 31 of 127 classical games on record.

As WhiteOpens 1.e4 in 14 of 14 games.

As BlackMeets 1.e4 with 1...c5, and 1.d4 with 1...Nf6.

All openings (2 as White, 1 as Black)
Openings in White gamesGamesScore
French Defense540%
Sicilian Defense540%

4 more games in openings played fewer than 3 times.

Event timeline · Classical

1 of 16 events · All years

Events before the current rating period show the performance, not a rating change.

Live events show the rating change; earlier events show the performance rating.

Performance rating by month

We have 4 of the 9 games FIDE rated this year.

MonthGamesScoreAvg oppTPR
Jan4218651865

Games count in the month they were played. Each month and year is one performance rating over all of its rated games.

Rated near Jacek Kosturkiewicz · Classical

World

  1. #=62589Archford Matiringe1850.0
  2. #=62589Walter Chipamba1850.0
  3. #=62589Jacek Kosturkiewicz1850.0
  4. #=62589Marek Moskwinski1850.0
  5. #=62589Marian Tomoae1850.0

Poland

  1. #=1539Mateusz Walocha1851.0
  2. #1546Mateusz Madera1850.2
  3. #=1547Jacek Kosturkiewicz1850.0
  4. #=1547Marek Moskwinski1850.0
  5. #=1547Adrian Daszkiewicz1850.0

Live ratings projected from the NOV26 published list · Not affiliated with FIDE