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Junseok Byun

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KOR · 15 yrs · K=40 · Peak 1789 (By Jan 2026)

Best performance: 1796 at 27th Asian Youth Chess Championships 2025 - Blitz U14(Best of 2025)

World #=46685 live, down 782#45,903 publishedSouth Korea #43Asia #=11055among active players

Blitz rating

1750

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

On FIDE’s list since Jan 2026

How live ratings are calculated

Rating History · Blitz

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Blitz rating 1789 to 1750 since January 2026; peak 1789 by January 2026.

Official rating by month

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

ListClassicalRapidBlitz
Nov 20261871, 0, 0 games1700, 0, 0 games1750, 0, 0 games
Oct 20261871, +17, 2 games1700, 0, 0 games1750, +21, 0 games
Sep 20261854, -1, 14 games1700, +6, 6 games1729, -59, 9 games
Aug 20261855, +59, 6 games1694, 0, 0 games1788, 0, 0 games
Jul 20261796, +9, 7 games1694, 0, 0 games1788, 0, 0 games
Jun 20261787, -51, 9 games1694, 0, 0 games1788, 0, 0 games
May 20261838, -12, 2 games1694, 0, 0 games1788, 0, 0 games
Apr 20261850, +135, 16 games1694, +1, 0 games1788, 0, 0 games
Mar 20261715, 0, 0 games1693, 0, 0 games1788, 0, 0 games
Feb 20261715, -1, 0 games1693, +1, 0 games1788, -1, 0 games
Jan 20261716, -84, 10 games1692, +40, 6 games1789, 7 games
Dec 20251800, -21, 2 games1652, +59, 7 gamesunrated

Form · Blitz

oldest → latest

Longest unbeaten run in 2026: 4 games, Aug 29.

From 18 blitz games on record, the latest on Aug 29.

Blitz games since the November list

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

Last playedScore
10th Eastern Asia Youth Blitz Chess Championship 2026 - B16Aug 29TPR 16604/9

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

Best wins · Blitz

From 16 rated blitz games against rated opponents, 2025–2026

#OpponentRating
1, FM Nimay Agrawal, Nov 2025 · 27th Asian Youth Chess Championships 2025 - Blitz U14, 2126
2, Tony Zhou, Aug 2026 · 10th Eastern Asia Youth Blitz Chess Championship 2026 - B16, 1826
3, Ya-Cheng Yang, Aug 2026 · 10th Eastern Asia Youth Blitz Chess Championship 2026 - B16, 1747

* No blitz rating yet, so FIDE rates the game at the player's classical rating.

Event timeline · Blitz

2 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
20269417031660
20257318461796

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

Rated near Junseok Byun · Blitz

World

  1. #=46685Emilijus Zobernis1750.0
  2. #=46685Thomas Kasperczyk1750.0
  3. #=46685Junseok Byun1750.0
  4. #=46685Kiti Nadanyan1750.0
  5. #=46685Ani Nahapetyan1750.0

South Korea

  1. #41Yubin Kim1759.0
  2. #42Tsydendorzhiev Aldar1758.0
  3. #43Junseok Byun1750.0
  4. #44Taewoo D Kim1749.0
  5. #45WCM Jooyeon Kim1735.0

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