Wins
591
Indexed tournament wins
Player record
Changping Duan
Losses
234
Indexed tournament losses
Matches
825
Decisive results
Win rate
71.6%
Across indexed matches
Peak rating
2,294
Highest rating in the available history.
Biggest upset
Peng Guo
2005 N. American Teams Open Ch · Nov 27, 2005 · +325 rating
Open →Biggest loss
Kaddoura, Fadi
Eastern Open on the 2004 Stiga · Jul 25, 2004 · -281 rating
Open →Most frequent opponent
David Sakai
9 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
107 tournament appearances · synced Aug 8, 2026, 3:34 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 25, 2001 | 2001 Stiga No. American TeamsTournament · View matches | 2,130 | 2,122 | -8 | 10W / 5L |
| Nov 18, 2001 | Potomac OpenTournament · View matches | 2,125 | 2,130 | +5+9 / -4 | 5W / 1L |
| Sep 30, 2001 | Stiga Open on the 2001 Stiga NTournament · View matches | 2,121 | 2,125 | +4+11 / -7 | 4W / 1L |
| Dec 17, 2000 | 2000 USATT National ChampionshipTournament · View matches | 2,099 | 2,121 | +22+32 / -10 | 8W / 2L |
| Nov 26, 2000 | No. Amer. Teams Open ChampionshipsTournament · View matches | 2,086 | 2,099 | +13+13 / 0 | 6W / 0L |
| Nov 19, 2000 | Potomac Millennium OpenTournament · View matches | 2,082 | 2,086 | +4+11 / -7 | 7W / 1L |
| Oct 8, 2000 | MDTTC October OpenTournament · View matches | 2,085 | 2,082 | -3 | 1W / 4L |
| Jun 18, 2000 | MDTTC June OpenTournament · View matches | 2,119 | 2,085 | -34 | 5W / 3L |
| Apr 2, 2000 | MDTTC April OpenTournament · View matches | 2,128 | 2,119 | -9+11 / -20 | 4W / 1L |
| Feb 4, 2000 | MDTTC February OpenTournament · View matches | 2,119 | 2,128 | +9+9 / 0 | 5W / 0L |
| Dec 19, 1999 | US NationalsTournament · View matches | 2,120 | 2,119 | -1+7 / -8 | 5W / 2L |
| Nov 28, 1999 | 1999 NA Teams 2Tournament · View matches | 2,097 | 2,120 | +23 | 13W / 3L |
| Jun 27, 1999 | Maryland Closed State ChampionTournament · View matches | 2,101 | 2,097 | -4 | 9W / 1L |
| May 23, 1999 | 1999 Potomac Spring OpenTournament · View matches | 2,072 | 2,101 | +29+29 / 0 | 6W / 0L |
| Feb 21, 1999 | MDTTC February OpenTournament · View matches | 2,077 | 2,072 | -5+7 / -12 | 3W / 2L |
| Nov 29, 1998 | 1998 North American Teams ChampionshipsTournament · View matches | 2,115 | 2,077 | -38+47 / -85 | 20W / 6L |
| Nov 22, 1998 | Potomac Fall OpenTournament · View matches | 2,117 | 2,115 | -2+13 / -15 | 6W / 3L |
| Oct 25, 1998 | MDTTC October OpenTournament · View matches | 2,118 | 2,117 | -1+3 / -4 | 2W / 1L |
| Apr 26, 1998 | PA State GamesTournament · View matches | 2,122 | 2,118 | -4+9 / -13 | 11W / 3L |
| Nov 30, 1997 | US Open Teams ChampionshipsTournament · View matches | 2,161 | 2,122 | -39 | 13W / 4L |