Player record

Guo, Stephanie

ID 81042CAFemaleInactive
Current rating1,522
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Wins

66

Indexed tournament wins

Losses

54

Indexed tournament losses

Matches

120

Decisive results

Win rate

55.0%

Across indexed matches

Peak rating

1,522

Highest rating in the available history.

Biggest upset

Paul Nunez

2011 US Nationals · Dec 17, 2011 · +678 rating

Open →

Biggest loss

Fong, Shawn

2012 Berkeley Open on JOOLA North America Tour · Sep 23, 2012 · -571 rating

Open →

Most frequent opponent

Sung, Jia-Yu

6 matches

Open →

Rating trajectory

Published rating movement across recorded events.

Tournament history

11 tournament appearances · synced Aug 8, 2026, 2:17 AM

DateTournamentRating inRating afterPoints changedRecord
Dec 22, 20122012 U.S. NationalsTournament · View matches1,1641,522+35814W / 9L
Sep 23, 20122012 Berkeley Open on JOOLA North America TourTournament · View matches1,2701,164-106+0 / -1063W / 9L
Sep 16, 2012JUIC International Jr. & Cadet ChampionshipTournament · View matches1,2781,270-83W / 3L
Dec 17, 20112011 US NationalsTournament · View matches8021,278+47611W / 8L
Nov 6, 2011JUIC International Jr. & Cadet ChampionshipTournament · View matches607802+1957W / 3L
Oct 23, 2011Concord Cup Youth OpenTournament · View matches476607+1319W / 2L
Sep 25, 20112011 Berkeley Open on the JOOLA NA TourTournament · View matches467476+9+10 / -12W / 2L
Aug 28, 20112011 West Coast Summer OpenTournament · View matches454467+13+30 / -174W / 7L
Jun 5, 2011ICC CA State OpenTournament · View matches477454-234W / 5L
Apr 24, 20112011 West Coast Spring OpenTournament · View matches520477-434W / 4L
Mar 20, 2011ICC CA State OpenTournament · View matches · Initial rating 520Unrated520—5W / 2L