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Isaac Roberto Umana Castro

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CRC · 20 yrs · K=40 · Peak 1536 (Mar 2024, includes FIDE’s rating adjustment)

Best performance: 1227 at Torneo Abierto Metropolitano B 2023(Best of 2023)

World #=451263Costa Rica #=924among all players, November list

Classical rating

1535

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

On FIDE’s list since Feb 2024 · Inactive on FIDE’s list

How live ratings are calculated

Rating History · Classical

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Classical rating unchanged at 1535 over the last 12 months; peak 1536 in March 2024.

Official rating by month

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

ListClassical
Nov 20261535, 0, 0 games
Oct 20261535, 0, 0 games
Sep 20261535, 0, 0 games
Aug 20261535, 0, 0 games
Jul 20261535, 0, 0 games
Jun 20261535, 0, 0 games
May 20261535, 0, 0 games
Apr 20261535, 0, 0 games
Mar 20261535, 0, 0 games
Feb 20261535, 0, 0 games
Jan 20261535, 0, 0 games
Dec 20251535, 0, 0 games

Form · Classical

oldest → latest

From 23 classical games on record, the latest on May 25, 2024.

Classical games since the November list

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

Last playedScore
JDN Eliminatoria U20 Equipos Absoluto 2024May 25, 2024 – May 26, 20240/1

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

Best wins · Classical

From 11 rated classical games against rated opponents, 2022–2023

#OpponentRating
1, Maria Jimena Loria Hernandez, Dec 2023 · Torneo Abierto Metropolitano B 2023, 1269
2, Luis Fernando Rodriguez Vargas, Dec 2023 · Torneo Abierto Metropolitano B 2023, 1178

Event timeline · Classical

4 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
20236213521227
2022501318518

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

Rated near Isaac Roberto Umana Castro · Classical · November list, all players

World

  1. #=451263Manuel A Ugarte1535
  2. #=451263Silke Uhlmann1535
  3. #=451263Isaac Roberto Umana Castro1535
  4. #=451263Jaroslav Urbanek1535
  5. #=451263Camila Urroz1535

Costa Rica

  1. #=922Gabriela Sierra Berrocal1536
  2. #=922Gilberto Barrantes Castro1536
  3. #=924Isaac Roberto Umana Castro1535
  4. #=924Saul Alberto Rojas Chacon1535
  5. #=926Jahir Diaz Calderon1534

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