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Sergio Aragon Masis

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CRC · 46 yrs · K=40 · Peak 1651 (Mar 2024, includes FIDE’s rating adjustment)

Best performance: 1991 at Torneo Memorial Robert Fischer(Best of 2013)

World #=341742Costa Rica #=601among all players, November list

Classical rating

1648

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

On FIDE’s list since Dec 2019 · Inactive on FIDE’s list

How live ratings are calculated

Rating History · Classical

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Classical rating unchanged at 1648 over the last 12 months; peak 1651 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 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Oct 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Sep 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Aug 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Jul 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Jun 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
May 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Apr 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Mar 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Feb 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Jan 20261648, 0, 0 games1724, 0, 0 games1783, 0, 0 games
Dec 20251648, 0, 0 games1724, 0, 0 games1783, 0, 0 games

Form · Classical

oldest → latest

From 49 classical games on record, the latest on Nov 25, 2023.

Classical games since the November list

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

Last playedScore
Campeonato Nacional por Equipos Clasico 2023Nov 18, 2023 – Nov 26, 20231/4

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

Best wins · Classical

From 38 rated classical games against rated opponents, 2007–2023

#OpponentRating
1, Giovanni Artavia Munoz, Jun 2013 · Torneo Memorial Robert Fischer, 1776
2, Roberto Del Cid Winter, Jun 2013 · Torneo Memorial Robert Fischer, 1741
3, Manrique Nunez Avendano, Oct 2022 · Open Memorial Carlos Araya Serrano, 1554

Openings · Classical

From the moves of 5 of 49 classical games on record.

As BlackMeets 1.e4 with 1...e5.

All openings (1 as Black)

Against 1.e4: 1...e5 in 4.

Openings in Black gamesGamesScore
Ruy Lopez317%

1 more game in an opening played fewer than 3 times.

Event timeline · Classical

7 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
2022181014391482
201985½14261567
20135319191991
20075120311791

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

Rated near Sergio Aragon Masis · Classical · November list, all players

World

  1. #=341742Simon Anzinger1648
  2. #=341742Sina Arablou1648
  3. #=341742Sergio Aragon Masis1648
  4. #=341742Roberto Arambire1648
  5. #=341742Henrique Fernandes Araujo1648

Costa Rica

  1. #=598David Elian Herrera Castro1650
  2. #600Debora Shasly Sandi Quiros1649
  3. #=601Sergio Aragon Masis1648
  4. #=601Ariadna Bustamante Grijalba1648
  5. #=601Luis Alfredo Arias Gomez1648

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