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
Guo, Peng
2005 N. American Teams Open Ch · Nov 27, 2005 · +325 rating
Open →Biggest loss
Fadi Kaddoura
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 7, 2026, 3:14 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Dec 17, 2017 | US OpenTournament · View matches | 2,011 | 2,034 | +23+25 / -2 | 5W / 2L |
| Jul 3, 2017 | 2017 SuperMicro US NationalsTournament · View matches | 2,018 | 2,011 | -7+3 / -10 | 3W / 3L |
| Jun 24, 2017 | 2017 Butterfly WDCTT June OpenTournament · View matches | 1,993 | 2,018 | +25+25 / 0 | 5W / 0L |
| Jun 10, 2017 | Maryland State ChampionshipsTournament · View matches | 2,027 | 1,993 | -34+14 / -48 | 7W / 2L |
| Dec 12, 2016 | 2016 US OpenTournament · View matches | 2,012 | 2,027 | +15+22 / -7 | 6W / 2L |
| Dec 10, 2016 | 2016 Butterfly WDCTT December OpenTournament · View matches | 2,046 | 2,012 | -34+1 / -35 | 2W / 1L |
| Nov 25, 2016 | 2016 JOOLA NA TeamsTournament · View matches | 2,009 | 2,046 | +37+63 / -26 | 7W / 7L |
| Sep 24, 2016 | 2016 Butterfly WDCTT Open & Closed ChampionshipsTournament · View matches | 2,028 | 2,009 | -19+12 / -31 | 6W / 2L |
| Jul 4, 2016 | 2016 USA Table Tennis National ChampionshipTournament · View matches | 2,028 | 2,028 | 0+23 / -23 | 6W / 4L |
| Dec 14, 2015 | US NationalsTournament · View matches | 2,023 | 2,028 | +5+6 / -1 | 5W / 2L |
| Nov 29, 2015 | 2015 JOOLA North American Teams ChampionshipsTournament · View matches | 2,077 | 2,023 | -54+29 / -83 | 6W / 7L |
| Jul 11, 2015 | 2015 U.S. Open Tournament · View matches | 2,064 | 2,077 | +13+20 / -7 | 6W / 3L |
| Dec 20, 2014 | 2014 US National ChampionshipsTournament · View matches | 2,052 | 2,064 | +12+18 / -6 | 4W / 2L |
| Nov 30, 2014 | 2014 JOOLA North American Teams ChampionshipsTournament · View matches | 2,035 | 2,052 | +17 | 6W / 1L |
| Jul 5, 2014 | US OpenTournament · View matches | 2,033 | 2,035 | +2+10 / -8 | 5W / 2L |
| Dec 21, 2013 | USATT NationalsTournament · View matches | 2,029 | 2,033 | +4+15 / -11 | 5W / 2L |
| Nov 3, 2013 | Roanoke Table Tennis Open (32 points)Tournament · View matches | 2,058 | 2,029 | -29+14 / -43 | 6W / 3L |
| Jul 6, 2013 | US OpenTournament · View matches | 2,065 | 2,058 | -7+4 / -11 | 3W / 2L |
| Dec 22, 2012 | 2012 U.S. NationalsTournament · View matches | 2,089 | 2,065 | -24+18 / -42 | 2W / 2L |
| Nov 25, 2012 | 2012 JOOLA N. American Teams OTournament · View matches | 2,122 | 2,089 | -33 | 5W / 4L |
1–20 of 107
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