Wins
16
Indexed tournament wins
Player record
Marvald, Irwin
Losses
14
Indexed tournament losses
Matches
30
Decisive results
Win rate
53.3%
Across indexed matches
Peak rating
1,746
Highest rating in the available history.
Biggest upset
Sean Chung
1998 Eastern Open · Mar 20, 1998 · +623 rating
Open →Biggest loss
Not enough data
No qualifying loss available.
Most frequent opponent
Rhoda Samkoff
2 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
5 tournament appearances · synced Aug 8, 2026, 2:19 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Sep 3, 2000 | Labor Day OpenTournament · View matches | 1,245 | 1,257 | +12 | 2W / 4L |
| May 21, 2000 | NJTTC May OpenTournament · View matches | 1,242 | 1,245 | +3+5 / -2 | 1W / 1L |
| Mar 20, 1998 | 1998 Eastern OpenTournament · View matches · USATT readjusted 1,242 → 1,667 | 1,242 | 1,746 | +79+79 / 0 | 4W / 5L |
| Mar 19, 1995 | Jersey Coast Spring OpenTournament · View matches | 934 | 1,242 | +308 | 8W / 3L |
| May 15, 1994 | Westfield May OpenTournament · View matches · Initial rating 934 | Unrated | 934 | 0+6 / -6 | 1W / 1L |
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