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Oscar Petrov

USA · 22 yrs · K=20 · Peak 1875 (Mar 2024)

Best performance: 2041 at 2017 Washington State B vs. British Columbia B(Best of 2018)

World #=64953 live, down 752#64,201 publishedUnited States #=1830

NOV26 Rating

1842

Live Rating

1842.0

Change

0.0

Games Played

0

How live ratings are calculated

Rating History · Classical

Loading chart…
Official classical rating by month
ListRatingChange
Nov 202618420
Oct 202618420
Sep 202618420
Aug 202618420
Jul 202618420
Jun 202618420
May 202618420
Apr 202618420
Mar 202618420
Feb 20261842-33
Jan 202618750
Dec 202518750

Form · Classical

oldest → latest

From 140 classical games on record, the latest on Jan 5.

Classical games since the November list

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

Last playedScore
2026 Pan-American Intercollegiate ChampionshipJan 2 – Jan 5TPR 16511/6

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

Best wins · Classical

From 110 rated classical games against rated opponents, 2015–2026

#OpponentRating
1, IM Sergej Salov, Dec 2019 · 19th Deaf Chess Olympiad of the ICCD - Open, 2180
2, IM Rohan Talukdar, Jul 2017 · 2017 North American Youth Chess Championship - U14, 2163
3, Owen McCoy, May 2017 · 2017 Washington Open, 2020

Openings · Classical

Moves are on record for 3 of 140 classical games. Openings show once one has been played 3 times.

Event timeline · Classical

1 of 27 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: 1651 over 6 rated games

MonthGamesScoreAvg oppTPR
Jan6119241651

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

Rated near Oscar Petrov · Classical

World

  1. #=64953Marcelo Lujambio1842.0
  2. #=64953Luis Espel1842.0
  3. #=64953Oscar Petrov1842.0
  4. #=64953Vlastimil Siebenburger1842.0
  5. #=64953Ivo Peroutka1842.0

United States

  1. #1829WCM Emily Jiaying Tang1842.8
  2. #=1830David Arganian1842.0
  3. #=1830Oscar Petrov1842.0
  4. #=1830Naga Abhiram Ponnaluri1842.0
  5. #=1830Nathan Zeigler1842.0

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