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Jiajun Guo

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CHN · 14 yrs · K=40 · Peak 1714 (Feb 2026)

Best performance: 1900 at 2025 National Chess Open (Liaocheng,China)(Best of 2025)

NOV26 Rating

1684

Live Rating

1684.0

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 202616840
Oct 202616840
Sep 202616840
Aug 202616840
Jul 202616840
Jun 202616840
May 202616840
Apr 20261684-30
Mar 202617140
Feb 20261714+25
Jan 202616890
Dec 20251689-9

Form · Classical

oldest → latest

Unbeaten in the last 2 games (2 wins), since Jul 24, 2025.

From 31 classical games on record, the latest on Jul 25, 2025.

Classical games since the November list

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

Last playedScore
2025 National Chess Open (Liaocheng,China)Jul 21, 2025 – Jul 25, 2025TPR 19006/9

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

Openings · Classical

From the moves of 10 of 31 classical games on record.

As BlackMeets 1.d4 with 1...d5, and 1.e4 with 1...e6.

All openings (2 as Black)

Against 1.d4: 1...d5 in 3.

Against 1.e4: 1...e6 in 3.

Openings in Black gamesGamesScore
French Defense333%
Slav Defense367%

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

Event timeline · Classical

3 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
20256319001900
2024144½17021569

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