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Ruben Gideon Koellner

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GER · 22 yrs · K=10 · Peak 2389 (Jul 2025)

Best performance: 2533 at 36. Sonnenterassen Open 2023 Blitzturnier(Best of 2023)

World #=1293 live, down 14#1,279 publishedGermany #76

NOV26 Rating

2377

Live Rating

2377.0

Change

0.0

Games Played

0

How live ratings are calculated

Rating History · Blitz

Loading chart…
Official blitz rating by month
ListRatingChange
Nov 20262377-7
Oct 202623840
Sep 202623840
Aug 202623840
Jul 202623840
Jun 202623840
May 202623840
Apr 202623840
Mar 20262384-5
Feb 202623890
Jan 202623890
Dec 202523890
Working toward the Grandmaster title1 tracked norm · 9/27 gamesrating metcomposition opendetails ↓

Form · Blitz

oldest → latest

Unbeaten in the last 2 games (2 wins), since Oct 19. Longest unbeaten run in 2026: 3 games, Oct 19.

From 106 blitz games on record, the latest on Oct 19.

Blitz games since the November list

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

Last playedScore
4. Berlin U25 Open Blitz - A-OpenOct 19TPR 23288/13

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

Title Progress

GM title progress

Working toward the Grandmaster title

Tracked norms: 1 · 9 of 27 games credit

Rating requirement met (peak 2535, OCT26 list)

Composition: next norm must come from an event played at one round a day for at least 3 days

1st International Munich Whitsun-Open AJun 20237/9Rp 2614

Based on events we cover plus the FIDE norm registers of all federations. Norms filed elsewhere may not show up here yet.

Event timeline · Blitz

1 of 9 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

2026: 2328 over 13 rated games

MonthGamesScoreAvg oppTPR
Oct13822412328

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

Rated near Ruben Gideon Koellner · Blitz

World

  1. #=1284GM Andrei Deviatkin2378.0
  2. #1292IM Stefan Tadic2377.8
  3. #=1293IM Ruben Gideon Koellner2377.0
  4. #=1293IM Sargis Vach. Sargsyan2377.0
  5. #=1293FM Gerard Tallada Serret2377.0

Germany

  1. #=73GM Lev Yankelevich2379.0
  2. #75FM Jens Hirneise2378.0
  3. #76IM Ruben Gideon Koellner2377.0
  4. #77GM Elisabeth Paehtz2371.0
  5. #78IM Thore Perske2367.0

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