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Diederick Casteleijn

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NED · 31 yrs · K=20 · Peak 2077 (Oct 2026)

Best performance: 2187 at NATO Chess 2024 Blitz Tournament(Best of 2024)

World #=9797 live, down 160#9,637 publishedNetherlands #149Europe #=5827among active players

Blitz rating

2073

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

On FIDE’s list since Aug 2015

How live ratings are calculated

Rating History · Blitz

Loading chart…

Blitz rating unchanged at 2073 over the last 12 months; peak 2077 in October 2026.

Official rating by month

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

ListClassicalBlitz
Nov 20262095, +1, 8 games2073, -4, 9 games
Oct 20262094, 0, 0 games2077, +4, 20 games
Sep 20262094, 0, 0 games2073, 0, 0 games
Aug 20262094, 0, 0 games2073, 0, 0 games
Jul 20262094, 0, 0 games2073, 0, 0 games
Jun 20262094, 0, 0 games2073, 0, 0 games
May 20262094, 0, 1 game2073, 0, 0 games
Apr 20262094, +5, 2 games2073, 0, 0 games
Mar 20262089, +12, 1 game2073, 0, 0 games
Feb 20262077, 0, 0 games2073, 0, 0 games
Jan 20262077, +8, 1 game2073, 0, 0 games
Dec 20252069, -8, 2 games2073, 0, 0 games

Form · Blitz

oldest → latest

Unbeaten in the last 2 games (2 wins), since Oct 16. Longest unbeaten run in 2026: 11 games, Sep 12 – Oct 16.

From 91 blitz games on record, the latest on Oct 16.

Blitz games since the November list

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

Show gamesLast playedScore
36th NATO Chess Championship 2026 - BlitzOct 16TPR 20576/9

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

Best wins · Blitz

From 79 rated blitz games against rated opponents, 2015–2026

#OpponentRating
1, IM Deniz Ozen, Aug 2025 · 35th NATO Chess Championship 2025 - Blitz Tournament, 2289
2, Simeon Onut, Aug 2016 · 27th NATO Chess Championship Blitz, 2214
3, Pranav Kshirsagar, Sep 2026 · Dutch Blitz Championship 2026 | Voorronde AB, 2179

Event timeline · Blitz

8 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
2026292019192060
2025116½20852150
2024117½20542187
201694½20362036

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

Rated near Diederick Casteleijn · Blitz

World

  1. #9795Ivan A. Bagan2073.4
  2. #9796Yaroslav Slugin2073.2
  3. #=9797Diederick Casteleijn2073.0
  4. #=9797CM Diego Herman2073.0
  5. #=9797FM Mark Yasser2073.0

Netherlands

  1. #=146Frank Verkooyen2076.0
  2. #=146Rogelio Lujan Garcia2076.0
  3. #149Diederick Casteleijn2073.0
  4. #=150CM Franck Steenbekkers2072.0
  5. #=150Sourav Bhattacharjee2072.0

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