Matthew Guo Diao

USA · 16 yrs · K=20 · Peak 2340 (Jan 2026)

Best performance: 2424 at 2025 U.S. Masters(Best of 2025)

World #=9846 live20#9,826 publishedUnited States #=329

OCT26 Rating

2172

Live Rating

2172.0

Change

0.0

Games Played

Rating History · Classical

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Classical games since the October list

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

	Last played	Score	TPR
	13th Annual Potomac Open — ChampionshipAug 14 – Aug 16TPR 2194	3½/5	2194

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

9 of 53 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.

13th Annual Potomac Open — Championship2194
Aug 2026Swissfederation source
#3 in 2026Score 3½/5Opp avg 2045Start 2186
Fifth Annual Beltway Open — Premier—(2)
Aug 2026Swissfederation source
Score 1/2Opp avg 1779Start 2186
13th Annual Washington Internationa — Championship2102
Jul 2026Swissfederation source
#6 in 2026Score 4½/9Opp avg 2102Start 2265
54th Annual World Open — Open2155
Jul 2026Swissfederation source
#5 in 2026Score 5/9Opp avg 2112Start 2265
4th DC International — FIDE2188
Jun 2026Swissfederation source
#4 in 2026Score 5/9Opp avg 2145Start 2265
13th Cherry Blossom Classic - Open2231
May 2026Swisschess-results.com
Best of 2026Score 5/8Opp avg 2136Start 2269
7th Colonial Open2074
Apr 2026Swisslichess
#7 in 2026Score 3½/5Opp avg 1925Start 2285
3rd Annual Presidents Day Open - Premier2229
Feb 2026Swissfederation source
#2 in 2026Score 5/8Opp avg 2134Start 2294
2026 Charlotte Open - Championship1963
Jan 2026Swissfederation source
#8 in 2026Score 3/6Opp avg 1963Start 2340

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