Wins
21
Indexed tournament wins
Player record
Oso, Bjorn
Losses
34
Indexed tournament losses
Matches
55
Decisive results
Win rate
38.2%
Across indexed matches
Peak rating
1,090
Highest rating in the available history.
Biggest upset
Cui-Stein, Max
Westchester 2021 June Open · Jun 26, 2021 · +713 rating
Open →Biggest loss
Guney, Baris
Westchester November 2018 Open · Nov 17, 2018 · -56 rating
Open →Most frequent opponent
Ayman Ibrahim
2 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
9 tournament appearances · synced Aug 14, 2026, 2:26 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jun 26, 2021 | Westchester 2021 June OpenTournament · View matches · USATT readjusted 990 → 1,040 | 990 | 1,090 | +50+50 / 0 | 1W / 2L |
| Aug 24, 2019 | Westchester August 2019 OpenTournament · View matches | 964 | 990 | +26+33 / -7 | 2W / 5L |
| May 25, 2019 | Westchester May 2019 OpenTournament · View matches | 963 | 964 | +1+16 / -15 | 1W / 2L |
| Jan 26, 2019 | Westchester January 2019 OpenTournament · View matches · USATT readjusted 678 → 928 | 678 | 963 | +35+52 / -17 | 4W / 6L |
| Dec 29, 2018 | Westchester December 2018 OpenTournament · View matches | 652 | 678 | +26+28 / -2 | 4W / 5L |
| Nov 17, 2018 | Westchester November 2018 OpenTournament · View matches | 654 | 652 | -2+6 / -8 | 3W / 1L |
| Sep 29, 2018 | Westchester September 2018 OpenTournament · View matches | 636 | 654 | +18+20 / -2 | 2W / 5L |
| Jul 28, 2018 | Westchester July 2018 OpenTournament · View matches · USATT readjusted 533 → 592 | 533 | 636 | +44+47 / -3 | 2W / 4L |
| May 26, 2018 | Westchester May 2018 OpenTournament · View matches · Initial rating 533 | Unrated | 533 | +3+8 / -5 | 2W / 4L |
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