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 |
|---|---|---|---|---|---|
| Aug 22, 2004 | Matthew J. Murad Memorial OpenTournament · View matches | 2,152 | 2,170 | +18+19 / -1 | 6W / 1L |
| Jul 25, 2004 | Eastern Open on the 2004 StigaTournament · View matches | 2,181 | 2,152 | -29+16 / -45 | 6W / 1L |
| Jun 6, 2004 | Meiklejohn National SeniorsTournament · View matches | 2,186 | 2,181 | -5+6 / -11 | 3W / 3L |
| Mar 28, 2004 | 2004 Meiklejohn Quaker City OpenTournament · View matches | 2,200 | 2,186 | -14+0 / -14 | 2W / 2L |
| Dec 29, 2003 | Killerspin Open 2003Tournament · View matches | 2,190 | 2,200 | +10+15 / -5 | 5W / 1L |
| Dec 20, 2003 | 2003 USA TT National ChampionshipTournament · View matches | 2,206 | 2,190 | -16+0 / -16 | 2W / 1L |
| Nov 30, 2003 | North American TeamsTournament · View matches | 2,237 | 2,206 | -31 | 3W / 4L |
| Nov 16, 2003 | PCTTC OpenTournament · View matches | 2,219 | 2,237 | +18+18 / 0 | 6W / 0L |
| Aug 24, 2003 | Macy Block OpenTournament · View matches | 2,213 | 2,219 | +6+13 / -7 | 5W / 2L |
| Jul 6, 2003 | 2003 U.S. OpenTournament · View matches | 2,224 | 2,213 | -11+10 / -21 | 3W / 2L |
| Jun 8, 2003 | Meiklejohn National SeniorsTournament · View matches | 2,227 | 2,224 | -3+4 / -7 | 4W / 2L |
| Dec 22, 2002 | 2002 US National ChampionshipsTournament · View matches | 2,186 | 2,227 | +41 | 10W / 1L |
| Dec 1, 2002 | Stiga N.A. Teams ChampionshipsTournament · View matches | 2,146 | 2,186 | +40 | 10W / 5L |
| Nov 17, 2002 | Potomac OpenTournament · View matches | 2,135 | 2,146 | +11+16 / -5 | 5W / 1L |
| Aug 18, 2002 | Macy Block OpenTournament · View matches | 2,131 | 2,135 | +4+4 / 0 | 5W / 0L |
| Jun 9, 2002 | 2002 Meiklejohn Nat Sr TTTTournament · View matches | 2,133 | 2,131 | -2+8 / -10 | 3W / 2L |
| Jun 2, 2002 | MDTTC June OpenTournament · View matches | 2,127 | 2,133 | +6+6 / 0 | 2W / 0L |
| Apr 7, 2002 | MDTTC April OpenTournament · View matches | 2,132 | 2,127 | -5+8 / -13 | 3W / 1L |
| Mar 24, 2002 | Buckeye OpenTournament · View matches | 2,106 | 2,132 | +26 | 11W / 2L |
| Dec 23, 2001 | 2001 USATT NationalsTournament · View matches | 2,122 | 2,106 | -16 | 4W / 2L |