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Kota Onuma

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JPN · 16 yrs · K=40 · Peak 1786 (By Jun 2025)

Best performance: 1820 at Japan Chess Championship 2025 -The 26th Argentina Cup-(Best of 2025)

NOV26 Rating

1758

Live Rating

1758.0

Change

0.0

Games Played

0

How live ratings are calculated

Rating History · Classical

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Official classical rating by month
ListRatingChange
Nov 202617580
Oct 202617580
Sep 202617580
Aug 202617580
Jul 202617580
Jun 202617580
May 202617580
Apr 20261758-2
Mar 202617600
Feb 20261760+2
Jan 202617580
Dec 202517580

Form · Classical

oldest → latest

Unbeaten in the last 3 games (1 win, 2 draws), since Sep 22, 2025.

From 32 classical games on record, the latest on Sep 23, 2025.

Classical games since the November list

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

Last playedScore
Japan Open 2025(Challenger Category)Sep 19, 2025 – Sep 23, 2025TPR 17215½/9

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

Best wins · Classical

From 22 rated classical games against rated opponents, 2024–2025

#OpponentRating
1Takahiro Mizumoto, Japan Chess Championship 2025 -The 26th Argentina Cup-, May 2025, 1794
2Yuma Akagiri, Japan Chess Championship 2025 -The 26th Argentina Cup-, May 2025, 1785
3Nozomu Tomizawa, Japan Chess Classic 2024 (3-Day_Challenger), Jul 2024, 1753

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
2025201017701770
2024211639—

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

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