Ethan Sun

USA · 14 yrs · K=40 · Peak 1834 (Mar 2024)

Best performance: 1998 at 20th Wilkerson Memorial Championship - 2000 and over(Best of 2023)

OCT26 Rating

1825

Live Rating

1825.0

Change

0.0

Games Played

How live ratings are calculated

Rating History · Classical

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Official classical rating by month

List	Rating	Change
Oct 2026	1825	0
Sep 2026	1825	0
Aug 2026	1825	0
Jul 2026	1825	0
Jun 2026	1825	0
May 2026	1825	0
Apr 2026	1825	0
Mar 2026	1825	0
Feb 2026	1825	0
Jan 2026	1825	0
Dec 2025	1825	0
Nov 2025	1825	0

Classical games since the October list

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

	Last played	Score	TPR
	16th annual Golden State Open - MajorJan 17, 2025 – Jan 20, 2025TPR 1969	2½/5	1969

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

Event timeline · Classical

26 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.

16th annual Golden State Open - Major1969
Jan 2025Swissfederation source
Best of 2025Score 2½/5Opp avg 1969Start 1775
23rd William Addison Memorial Tournament - 2000 and Over1553
Apr 2024Swissfederation source
#2 in 2024Score 1/4Opp avg 1746Start 1834
2nd Neil Falconer Memorial Tournament - 2000 and Over1522
Feb 2024Swissfederation source
#3 in 2024Score 2/4Opp avg 1647Start 1762
2024 New Year Championship - MX1737
Jan 2024Swissfederation source
Best of 2024Score 3/7Opp avg 1787Start 1736
33rd annual North American Open - U23001837
Dec 2023Swissfederation source
#3 in 2023Score 3½/7Opp avg 1837Start 1736
58th American Open - Under22001780
Nov 2023Swissfederation source
#4 in 2023Score 4½/8Opp avg 1737Start 1684
2023 Calchess Open Championship - X1731
Sep 2023Swissfederation source
#5 in 2023Score 3/7Opp avg 1781Start 1668
1000GM 2023 August Bona FIDE Swiss - Open1916
Aug 2023Swissfederation source
#2 in 2023Score 3/5Opp avg 1844Start 1590
13th annual Central California Open - Major1451
Aug 2023Swissfederation source
#9 in 2023Score ½/3Opp avg 1724Start 1590
1000GM Summer Championship - Open1684
Jul 2023Swissfederation source
#6 in 2023Score 2/6Opp avg 1809Start 1590
2023 National Open - Under 21001472
Jun 2023Swissfederation source
#8 in 2023Score 3/5Opp avg 1472Start 1621
20th Wilkerson Memorial Championship - 2000 and over1998
Mar 2023Swissfederation source
Best of 2023Score 2½/3Opp avg 1725Start 1601
1000GM 2023 March BonaFIDE Swiss Open1440
Mar 2023Swissfederation source
#10 in 2023Score 1/5Opp avg 1680Start 1601
14th annual Golden State Open - U2100 Section1658
Jan 2023Swissfederation source
#7 in 2023Score 3/5Opp avg 1586Start 1594
32nd annual North American Open - U21001440
Dec 2022Swissfederation source
#6 in 2022Score 1½/5Opp avg 1713Start 1528
1000GM December BonaFIDE Bay Area Swiss: 1700-19992273
Dec 2022Swissfederation source
Score 3½/4Opp avg 1473Start 1528
2022 People Class Warfare Championship - AB1581
Nov 2022Swissfederation source
#4 in 2022Score 4/6Opp avg 1509Start 1528
2022 CalChess State Open Class Championship - Class A1429
Sep 2022Swissfederation source
#7 in 2022Score 3½/7Opp avg 1429Start 1565
12th annual Central California Open Under 21001757
Aug 2022Swissfederation source
Best of 2022Score 3/4Opp avg 1564Start 1519
2022 US Class National Championship - Class A—(2)
Aug 2022Swissfederation source
Score 3/5Opp avg 1705Start 1519
27th annual Pacific Coast Open Under 21001508
Jul 2022Swissfederation source
#5 in 2022Score 2/6Opp avg 1633Start 1528
BayAreaChess 2-Day Championship - U 2000—(2)
Jun 2022Swissfederation source
Score 3/5Opp avg 1519Start 1486
2021 CalChess State Open Class Championship A1606
May 2022Swissfederation source
#3 in 2022Score 3½/6Opp avg 1549Start 1486
BayAreaChess 2-Day Championship March 2022 - 1500-1999—(2)
Mar 2022Swissfederation source
Score 3/5Opp avg 1541Start 1480
BayAreaChess 2-Day Championship - 1500-19991639
Feb 2022Swissfederation source
#2 in 2022Score 4/5Opp avg 1514

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