Player record

Zachary Chao

ID 30340CAMaleInactive

Zachary Chao's USATT rating is 733.

USATT rating733
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Wins

19

Indexed tournament wins

Losses

55

Indexed tournament losses

Matches

74

Decisive results

Win rate

25.7%

Across indexed matches

Peak rating

811

Highest rating in the available history.

Biggest upset

Jonathan Ley

Power Pong Open · Jan 14, 2006 · +410 rating

Open →

Biggest loss

Ian Orbell

SoCal Open · Aug 21, 2005 · -338 rating

Open →

Most frequent opponent

Justin Bookey

3 matches

Open →

Rating trajectory

Published rating movement across recorded events.

Tournament history

17 tournament appearances · synced Aug 26, 2026, 2:28 AM

DateTournamentRating inRating afterPoints changedRecord
Aug 29, 2010Pacific Coast OpenTournament · View matches736733-31W / 2L
Jun 27, 2010California State OpenTournament · View matches7367360+0 / 00W / 1L
Mar 28, 2010Golden Western OpenTournament · View matches735736+1+1 / 01W / 1L
May 31, 2009California State OpenTournament · View matches744735-90W / 5L
Aug 27, 2006Pacific Coast OpenTournament · View matches751744-7+0 / -70W / 6L
Feb 18, 2006Power Pong OpenTournament · View matches797751-46+0 / -460W / 4L
Jan 14, 2006Power Pong OpenTournament · View matches776797+213W / 4L
Dec 5, 2005Power Pong December OpenTournament · View matches774776+2+4 / -22W / 2L
Oct 22, 2005Power Pong October OpenTournament · View matches7747740+7 / -71W / 1L
Sep 17, 2005Power Pong September OpenTournament · View matches775774-12W / 3L
Aug 21, 2005SoCal OpenTournament · View matches811775-36+30 / -662W / 4L
Jul 30, 2005Power Pong July OpenTournament · View matches · USATT readjusted 692 → 758692811+53+60 / -73W / 3L
Jun 26, 2005California OpenTournament · View matches6926920+0 / 03W / 2L
May 28, 2005Power Pong May OpenTournament · View matches700692-8+0 / -80W / 4L
Aug 29, 2004Pacific CoastTournament · View matches7007000+0 / 00W / 5L
Mar 28, 2004Golden Western StatesTournament · View matches7007000+0 / 00W / 5L
Aug 24, 2003Pacific Coast OpenTournament · View matches · Initial rating 700Unrated700—1W / 3L