Wins
33
Indexed tournament wins
Player record
Jefferson, Josiah
Losses
10
Indexed tournament losses
Matches
43
Decisive results
Win rate
76.7%
Across indexed matches
Peak rating
1,479
Highest rating in the available history.
Biggest upset
Chong Ng
$6000 Presper Financial Architects Open · Oct 8, 2021 · +533 rating
Open →Biggest loss
Not enough data
No qualifying loss available.
Most frequent opponent
Chong Ng
3 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
4 tournament appearances · synced Aug 8, 2026, 2:18 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jan 21, 2022 | $6000 Nittaku Ohio OpenTournament · View matches · USATT readjusted 1,166 → 1,404 | 1,166 | 1,479 | +75+105 / -30 | 8W / 4L |
| Oct 8, 2021 | $6000 Presper Financial Architects OpenTournament · View matches · USATT readjusted 765 → 1,113 | 765 | 1,166 | +53+86 / -33 | 12W / 5L |
| Sep 18, 2020 | $3000 Nittaku OpenTournament · View matches | 736 | 765 | +29+29 / 0 | 6W / 0L |
| Feb 7, 2020 | $3000 Presper Financial Architects OpenTournament · View matches · Initial rating 736 | Unrated | 736 | +13+19 / -6 | 7W / 1L |
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