WCM

Iris Zhou

USA · 22 yrs · K=20 · Peak 1952 (Dec 2018)

Best performance: 2257 at 2025 Pan-American Intercollegiate Team Championship - Open(Best of 2025)

OCT26 Rating

1903

Live Rating

1903.0

Change

0.0

Games Played

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 played	Score	TPR
	2025 Pan-American Intercollegiate Team Championship - OpenJan 2, 2025 – Jan 5, 2025TPR 2257	1/3	2257

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

Event timeline · Classical

45 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.

2025 Pan-American Intercollegiate Team Championship - Open2257
Jan 2025Teamfederation source
Best of 2025Score 1/3Opp avg 2382Start 1891
2024 Pan-American Intercollegiate Team Chess Championship - Open1937
Jan 2024Teamfederation source
Best of 2024Score 2½/4Opp avg 1842Start 1810
2023 Pan-American Intercollegiate Team Championship1813
Jan 2023Teamfederation source
Best of 2023Score 1½/6Opp avg 2006Start 1821
2022 NAYCC U18 Girls1791
Aug 2022Swissfederation source
#3 in 2022Score 4/8Opp avg 1791Start 1839
50th Annual World Open - Open1841
Jun – Jul 2022Swissfederation source
#2 in 2022Score 3/9Opp avg 2034Start 1855
Midwest Chess Congress - Major1861
Jun 2022Swissfederation source
Best of 2022Score 1/3Opp avg 1986Start 1855
2019 Thanksgiving Open2022
Nov – Dec 2019Swissfederation source
#2 in 2019Score 3½/6Opp avg 2022Start 1827
2019 Saint Louis Master Lab2031
Oct 2019Round robinfederation source
Best of 2019Score 2/5Opp avg 2103Start 1783
28th Annual Midwest Class Championship—(2)
Oct 2019Swissfederation source
Score 1/3Opp avg 2382Start 1783
2019 Saint Louis District Championship—(2)
Sep 2019Swissfederation source
Score 0/2Opp avg 1697Start 1832
2019 NAYCC U16 Girls1717
Aug 2019Swissfederation source
#7 in 2019Score 6/9Opp avg 1615Start 1794
2019 Ruth Haring National Girls Tournament of Champions1946
Aug 2019Swissfederation source
#4 in 2019Score 4½/6Opp avg 1753Start 1794
Saint Louis Chess Club July Premier1214
Jul 2019Swissfederation source
Score 1½/5Opp avg 2014Start 1828
16th Annual Susan Polgar Foundation Girls' Invitational1780
Jun 2019Swissfederation source
#6 in 2019Score 4/6Opp avg 1780Start 1826
2019 Bill Wright Saint Louis Open1132
Apr 2019Swissfederation source
Score 0/4Opp avg 1932Start 1901
23rd Annual Mid-America Open1822
Mar 2019Swissfederation source
#5 in 2019Score 2/5Opp avg 1894Start 1929
Tim Just Winter Open XXXVI1972
Jan 2019Swissfederation source
#3 in 2019Score 3/5Opp avg 1972Start 1913
2018 Saint Louis Chess Club Championship1645
Dec 2018Swissfederation source
#7 in 2018Score 1/3Opp avg 1770Start 1952
2018 Thanksgiving Open2134
Nov 2018Swissfederation source
Best of 2018Score 2½/5Opp avg 2134Start 1769
FIDE World Youth Chess Championships - girls 141974
Oct 2018Swissfederation source
#3 in 2018Score 6½/11Opp avg 1909Start 1779
27th Annual Midwest Class Championship1711
Oct 2018Swissfederation source
#6 in 2018Score 1/3Opp avg 1836Start 1779
2018 Barber Tournament of K-8 Champions1744
Jul 2018Swissfederation source
#5 in 2018Score 3/6Opp avg 1816Start 1794
Saint Louis Premier and Amateur—(2)
Jun 2018Swissfederation source
Score 1/4Opp avg 2035Start 1794
Bill Wright Saint Louis Open2018
Apr 2018Swissfederation source
#2 in 2018Score 1/4Opp avg 2211Start 1780
22nd Annual Mid-America Open1955
Mar 2018Swissfederation source
#4 in 2018Score 1½/5Opp avg 2104Start 1742

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