Wins
9
Indexed tournament wins
Player record
Grzywaczewski, Sean
Losses
14
Indexed tournament losses
Matches
23
Decisive results
Win rate
39.1%
Across indexed matches
Peak rating
1,870
Highest rating in the available history.
Biggest upset
Brown, Adam
1999 US Open · Jul 4, 1999 · +345 rating
Open →Biggest loss
Thanh Lee
Southern Open · Oct 24, 1999 · -129 rating
Open →Most frequent opponent
Beaumont, John
1 match
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
3 tournament appearances · synced Aug 9, 2026, 2:17 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 24, 1999 | Southern OpenTournament · View matches | 1,870 | 1,860 | -10+0 / -10 | 1W / 5L |
| Jul 4, 1999 | 1999 US OpenTournament · View matches | 1,635 | 1,870 | +235 | 4W / 4L |
| Feb 28, 1999 | 1999 Irving RRTournament · View matches · Initial rating 1,635 | Unrated | 1,635 | -4+11 / -15 | 4W / 5L |
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