Wins
4
Indexed tournament wins
Player record
Zapf, Jonathan
Losses
5
Indexed tournament losses
Matches
9
Decisive results
Win rate
44.4%
Across indexed matches
Peak rating
1,242
Highest rating in the available history.
Biggest upset
Not enough data
No qualifying upset available.
Biggest loss
Not enough data
No qualifying loss available.
Most frequent opponent
Bourgea, Christopher
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, 2:23 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 8, 2003 | Dayton Giant RR OpenTournament · View matches · Initial rating 1,242 | Unrated | 1,242 | -2+34 / -36 | 4W / 5L |
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