Wins
63
Indexed tournament wins
Player record
Chang, Donald
Losses
57
Indexed tournament losses
Matches
120
Decisive results
Win rate
52.5%
Across indexed matches
Peak rating
1,749
Highest rating in the available history.
Biggest upset
Yip, Calvin
San Francisco Summer Open · Aug 22, 1999 · +405 rating
Open →Biggest loss
So, Preston
Golden State Open · May 30, 2010 · -536 rating
Open →Most frequent opponent
Atha Fong
2 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
19 tournament appearances · synced Aug 8, 2026, 2:18 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Feb 20, 2011 | 2011 Western Open on the JOOLA NA TourTournament · View matches | 1,503 | 1,510 | +7 | 2W / 2L |
| May 30, 2010 | Golden State OpenTournament · View matches | 1,644 | 1,503 | -141+0 / -141 | 1W / 5L |
| Jul 4, 2009 | US Open TT ChampionshipTournament · View matches | 1,749 | 1,644 | -105+1 / -106 | 3W / 5L |
| Jul 5, 2008 | U.S. OpenTournament · View matches · USATT readjusted 1,627 → 1,728 | 1,627 | 1,749 | +21+36 / -15 | 9W / 3L |
| May 25, 2008 | Golden State OpenTournament · View matches | 1,639 | 1,627 | -12 | 3W / 2L |
| Jul 7, 2007 | U.S. Open ChampionshipsTournament · View matches | 1,613 | 1,639 | +26+62 / -36 | 12W / 5L |
| May 27, 2007 | Golden State OpenTournament · View matches | 1,568 | 1,613 | +45+50 / -5 | 3W / 2L |
| Oct 22, 2006 | 2006 Stiga NA Tour FinalsTournament · View matches | 1,571 | 1,568 | -3 | 2W / 3L |
| Sep 3, 2006 | 2006 Berkeley OpenTournament · View matches | 1,567 | 1,571 | +4+10 / -6 | 2W / 3L |
| Jun 12, 2005 | Golden State OpenTournament · View matches | 1,544 | 1,567 | +23+57 / -34 | 5W / 3L |
| Feb 29, 2004 | California Open on the 2004 StTournament · View matches | 1,512 | 1,544 | +32+33 / -1 | 3W / 2L |
| Sep 29, 2001 | Sacramento Fall Fun for All OpTournament · View matches | 1,513 | 1,512 | -1+1 / -2 | 1W / 3L |
| Aug 19, 2001 | San Francisco Summer OpenTournament · View matches | 1,520 | 1,513 | -7+4 / -11 | 1W / 2L |
| Jun 30, 2001 | Glen Park OpenTournament · View matches | 1,482 | 1,520 | +38+42 / -4 | 2W / 2L |
| Sep 26, 1999 | Daly City Mayoral TrophyTournament · View matches | 1,454 | 1,482 | +28+33 / -5 | 3W / 3L |
| Aug 22, 1999 | San Francisco Summer OpenTournament · View matches · USATT readjusted 1,212 → 1,416 | 1,212 | 1,454 | +38+60 / -22 | 4W / 4L |
| May 29, 1999 | Golden State OpenTournament · View matches | 1,207 | 1,212 | +5+8 / -3 | 1W / 1L |
| Mar 7, 1999 | Sacramento Open 2 StarTournament · View matches | 1,242 | 1,207 | -35+28 / -63 | 4W / 3L |
| Sep 27, 1998 | Daly City War MemorialTournament · View matches · Initial rating 1,242 | Unrated | 1,242 | — | 2W / 4L |
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