Wins
30
Indexed tournament wins
Player record
Guo, Jason
Losses
12
Indexed tournament losses
Matches
42
Decisive results
Win rate
71.4%
Across indexed matches
Peak rating
1,758
Highest rating in the available history.
Biggest upset
Wang, Bichen
2010 Berkeley Open on the JOOLA NA Tour · Sep 5, 2010 · +411 rating
Open →Biggest loss
Not enough data
No qualifying loss available.
Most frequent opponent
Dominique Flexer
2 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
5 tournament appearances · synced Aug 8, 2026, 2:16 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Dec 22, 2012 | 2012 U.S. NationalsTournament · View matches | 1,416 | 1,758 | +342 | 14W / 4L |
| Sep 5, 2010 | 2010 Berkeley Open on the JOOLA NA TourTournament · View matches · USATT readjusted 1,115 → 1,347 | 1,115 | 1,416 | +69+78 / -9 | 8W / 2L |
| Feb 28, 2010 | ICC CA State OpenTournament · View matches | 1,071 | 1,115 | +44 | 4W / 1L |
| Feb 20, 2010 | 2010 Western Open on the JOOLA NA TourTournament · View matches | 1,025 | 1,071 | +46+48 / -2 | 4W / 1L |
| Dec 6, 2009 | ICC California State OpenTournament · View matches · Initial rating 1,025 | Unrated | 1,025 | — | 0W / 4L |
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