Siyuan Ou

ENG · 16 yrs · K=40 · Peak 1590 (May 2026)

World #=198517 live47587#150,930 publishedEngland #=2394

OCT26 Rating

1510

Live Rating

1434.0

Change

-76.0

Games Played

Rating History · Rapid

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Official rapid rating by month

Rapid games since the October list

	Tournament	Score	Change	TPR	After
	2026 Delancey UKCC Challengers Under 18Oct 3 – Oct 4TPR 1477	1/6	-22.0	1477	1488.0
	2026 UK Chess Challenge Terafinal Under 18Oct 17 – Oct 18TPR 1168	0/11	-54.0	1168	1434.0

6 of 34 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.

2026 UK Chess Challenge Terafinal Under 18-54.0
Oct 2026Round robinchess-results.com
Score 0/11TPR 1168Opp avg 1968Start 1510
2026 Delancey UKCC Challengers Under 18-22.0
Oct 2026Individualchess-results.com
#2 in 2026Score 1/9TPR 1477Opp avg 1717Start 1510
2026 UK Chess Challenge Southern Gigafinal Under 181460
Jul 2026Swissfederation source
#3 in 2026Score 3/7Opp avg 1653Start 1547
2026 UK Chess Challenge Northern Gigafinal Under 181421
Jul 2026Swissfederation source
#4 in 2026Score 3/7Opp avg 1694Start 1547
2026 UK Chess Challenge Scottish Gigafinal - Sunday U18—(2)
Jun 2026Swisschess-results.com
Score 3/7Opp avg 1566Start 1590
2026 Birmingham Megafinal Under 181802
Apr 2026Swissfederation source
Best of 2026Score 4/6Opp avg 1677Start 1556

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