Wins
2
Indexed tournament wins
Player record
Alderdice, Mark
Losses
10
Indexed tournament losses
Matches
12
Decisive results
Win rate
16.7%
Across indexed matches
Peak rating
900
Highest rating in the available history.
Biggest upset
Not enough data
No qualifying upset available.
Biggest loss
Seibel, Jeff
Sacramento Summer Open · Aug 3, 1996 · -160 rating
Open →Most frequent opponent
Allison Seibel
1 match
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
2 tournament appearances · synced Aug 9, 2026, 2:30 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Aug 3, 1996 | Sacramento Summer OpenTournament · View matches | 900 | 841 | -59 | 2W / 7L |
| May 4, 1996 | Cinco de Mayo RRTournament · View matches · Initial rating 900 | Unrated | 900 | — | 0W / 3L |
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