Wins
5
Indexed tournament wins
Player record
Pfeiffer, Mark
Losses
2
Indexed tournament losses
Matches
7
Decisive results
Win rate
71.4%
Across indexed matches
Peak rating
1,096
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
Bird, Galen
1 match
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
2 tournament appearances · synced Aug 8, 2026, 2:20 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 25, 2009 | 2009 Lindenwood October OpenTournament · View matches | 1,091 | 1,096 | +5 | 4W / 1L |
| Nov 2, 1996 | St. Louis Fall OpenTournament · View matches · Initial rating 1,091 | Unrated | 1,091 | — | 1W / 1L |
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