Wins
6
Indexed tournament wins
Player record
Powley, Jonathan
Losses
1
Indexed tournament losses
Matches
7
Decisive results
Win rate
85.7%
Across indexed matches
Peak rating
889
Highest rating in the available history.
Biggest upset
Stahl, Janice A.
Maryland Circuit · Mar 3, 1996 · +191 rating
Open →Biggest loss
Not enough data
No qualifying loss available.
Most frequent opponent
Argot, Robert
1 match
Open →Rating trajectory
Published rating movement across recorded events.
Rating history unavailable
More published rating points are needed before a trajectory can be drawn.
Tournament history
1 tournament appearances · synced Aug 10, 2026, 2:28 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Mar 3, 1996 | Maryland CircuitTournament · View matches | 780 | 889 | +109 | 6W / 1L |
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