Compare

Jonathan Si Seng Ong

Follow

AUS · 16 yrs · K=40 · Peak 1827 (Nov 2025)

Best performance: 1897 at 2025 NSWCA October Weekender(Best of 2025)

World #=97582 live423#97,159 publishedAustralia #=645

OCT26 Rating

1738

Live Rating

1738.0

Change

0.0

Games Played

0

Rating History · Classical

Loading chart…

Classical games since the October list

No rated standard games this rating periodsince the OCT26 list (Oct 1, 2026)

Last playedScore
2026 New South Wales OpenJun 5 – Jun 8TPR 18352/5

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

Event timeline · Classical

4 of 25 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.

Rated near Jonathan Si Seng Ong · Classical

World

  1. #=97582Alan Wolstencroft1738.0
  2. #=97582Vlastimil Oharek1738.0
  3. #=97582Jonathan Si Seng Ong1738.0
  4. #=97582WCMZara Majid1738.0
  5. #=97582Cristian Chura Gonzales1738.0

Australia

  1. #=645WCMSarah Anton1738.0
  2. #=645Alan Wolstencroft1738.0
  3. #=645Jonathan Si Seng Ong1738.0
  4. #=648Daniel Zhang1737.0
  5. #=648William Cameron1737.0

Live ratings projected from the OCT26 published list · Not affiliated with FIDE