Wins
227
Indexed tournament wins
Player record
Zhongkai (john) Xu
Losses
152
Indexed tournament losses
Matches
379
Decisive results
Win rate
59.9%
Across indexed matches
Peak rating
1,793
Highest rating in the available history.
Biggest upset
Hau Lam
2011 Rose City Open · Jun 12, 2011 · +376 rating
Open →Biggest loss
John Peng
2009 Rose City Open · Jun 28, 2009 · -478 rating
Open →Most frequent opponent
Brian Yoder
11 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
44 tournament appearances · synced Aug 12, 2026, 4:08 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 14, 2004 | Viducich Stiga Pacific Rim OpenTournament · View matches | 1,603 | 1,580 | -23+2 / -25 | 2W / 2L |
| Jun 13, 2004 | Rose City OpenTournament · View matches | 1,423 | 1,603 | +180 | 8W / 3L |
| May 8, 2004 | Chemeketa Spring OpenTournament · View matches | 1,415 | 1,423 | +8+12 / -4 | 3W / 4L |
| Oct 26, 2003 | Viducich Stiga Pacific Rim OpenTournament · View matches · Initial rating 1,415 | Unrated | 1,415 | — | 0W / 3L |
41–44 of 44
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