Wins
269
Indexed tournament wins
Player record
Qin, Jonathan
Losses
203
Indexed tournament losses
Matches
472
Decisive results
Win rate
57.0%
Across indexed matches
Peak rating
2,261
Highest rating in the available history.
Biggest upset
Ray Robertson
Best of the West Open · Sep 28, 2014 · +461 rating
Open →Biggest loss
Liu, Audrey
2014 US National Championships · Dec 20, 2014 · -1119 rating
Open →Most frequent opponent
Alex Wu
8 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
42 tournament appearances · synced Aug 7, 2026, 2:13 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Feb 16, 2014 | Arizona OpenTournament · View matches | 559 | 558 | -1+15 / -16 | 2W / 10L |
| Dec 8, 2013 | 2013 Valley of the Sun OpenTournament · View matches · Initial rating 559 | Unrated | 559 | — | 6W / 2L |
41–42 of 42
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