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Guenter Idaczek

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GER · 60 yrs · K=20 · Peak 1948 (Mar 2024, includes FIDE’s rating adjustment)

Best performance: 2126 at Lichtenrader Herbst 20009(Best of 2009)

World #=43859 live, down 700#43,159 publishedGermany #=4923Europe #=32242among active players

Classical rating

1922

FIDE’s November 2026 list. No rated games since, so the live rating is the same.

On FIDE’s list since Jul 2004

How live ratings are calculated

Rating History · Classical

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Classical rating 1937 to 1922 over the last 12 months; peak 1948 in March 2024.

Official rating by month

Each month: the rating, its change from the list before, and the rated games FIDE counted.

ListClassicalRapidBlitz
Nov 20261922, -7, 7 games1902, 0, 0 games1780, 0, 0 games
Oct 20261929, 0, 0 games1902, 0, 0 games1780, 0, 0 games
Sep 20261929, 0, 0 games1902, 0, 0 games1780, 0, 0 games
Aug 20261929, 0, 0 games1902, 0, 0 games1780, 0, 0 games
Jul 20261929, 0, 0 games1902, -21, 6 games1780, 0, 0 games
Jun 20261929, 0, 0 games1923, 0, 0 games1780, 0, 0 games
May 20261929, 0, 0 games1923, 0, 0 games1780, 0, 0 games
Apr 20261929, -8, 5 games1923, 0, 0 games1780, 0, 0 games
Mar 20261937, 0, 0 games1923, 0, 0 games1780, 0, 0 games
Feb 20261937, 0, 0 games1923, 0, 0 games1780, 0, 0 games
Jan 20261937, 0, 0 games1923, 0, 0 games1780, 0, 0 games
Dec 20251937, 0, 0 games1923, 0, 0 games1780, 0, 0 games

Form · Classical

oldest → latest

Longest unbeaten run in 2026: 3 games, Mar 27 – Mar 28.

From 65 classical games on record, the latest on Oct 4.

Classical games since the November list

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

Show gamesLast playedScore
4. Albrecht-Beer-Turnier GeraOct 1 – Oct 4TPR 18814/7

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

Best wins · Classical

From 58 rated classical games against rated opponents, 2007–2026

#OpponentRating
1, Alex Rempeli, Jul 2021 · 3. Bamberg-Open 2021 A-Turnier, 2124
2, Heinrich Burger, Oct 2009 · Lichtenrader Herbst 20009, 2069
3, Bernd Muskewitz, Oct 2009 · Lichtenrader Herbst 20009, 2013

Event timeline · Classical

9 events

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 year

YearGamesScoreAvg oppTPR
2026126½18511880
20248418961896
202161½20451852
20177418601910
201695½18701950
20115219001828
20098520312126
20073½21321859

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

Rated near Guenter Idaczek · Classical

World

  1. #=43859WFM Dr. Anita Just1922.0
  2. #=43859Sean M Lightbown1922.0
  3. #=43859Guenter Idaczek1922.0
  4. #=43859Gert Byhan1922.0
  5. #=43859Werner Kraus1922.0

Germany

  1. #=4923Bernhard Jehle1922.0
  2. #=4923WFM Dr. Anita Just1922.0
  3. #=4923Guenter Idaczek1922.0
  4. #=4923Gert Byhan1922.0
  5. #=4923Werner Kraus1922.0

Live rating: FIDE’s November list plus every rated game played since. Not affiliated with FIDE.