Wins
26
Indexed tournament wins
Player record
Mark Rosenberg
Losses
18
Indexed tournament losses
Matches
44
Decisive results
Win rate
59.1%
Across indexed matches
Peak rating
1,679
Highest rating in the available history.
Biggest upset
Henry Chan
Rose City Open · Jun 19, 1994 · +443 rating
Open →Biggest loss
Mabbeskal Man
2005 Rose City Open · Jun 18, 2005 · -442 rating
Open →Most frequent opponent
Jim Preston
3 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
7 tournament appearances · synced Aug 26, 2026, 2:24 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Jun 18, 2005 | 2005 Rose City OpenTournament · View matches | 1,658 | 1,619 | -39+1 / -40 | 3W / 3L |
| Nov 5, 1995 | Pacific Rim OpenTournament · View matches | 1,679 | 1,658 | -21+0 / -21 | 2W / 3L |
| Aug 19, 1995 | Portland OpenTournament · View matches · USATT readjusted 1,550 → 1,660 | 1,550 | 1,679 | +19+33 / -14 | 4W / 3L |
| Jun 18, 1995 | Rose City OpenTournament · View matches | 1,577 | 1,550 | -27+0 / -27 | 0W / 2L |
| Nov 13, 1994 | Pacific Rim OpenTournament · View matches · USATT readjusted 1,357 → 1,517 | 1,357 | 1,577 | +60+97 / -37 | 6W / 3L |
| Aug 20, 1994 | Portland OpenTournament · View matches | 1,353 | 1,357 | +4 | 4W / 3L |
| Jun 19, 1994 | Rose City OpenTournament · View matches | 997 | 1,353 | +356 | 7W / 1L |
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