Wins
309
Indexed tournament wins
Player record
Mast, Ivan
Losses
241
Indexed tournament losses
Matches
550
Decisive results
Win rate
56.2%
Across indexed matches
Peak rating
2,097
Highest rating in the available history.
Biggest upset
Roy Schlabach
Portsmouth November Open Invitational · Nov 21, 1998 · +280 rating
Open →Biggest loss
Charles Lin
North American Teams · Nov 30, 2003 · -447 rating
Open →Most frequent opponent
Samson Dubina
15 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
70 tournament appearances · synced Aug 8, 2026, 2:15 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 3, 1996 | 1996 Millcreek OpenTournament · View matches | 1,954 | 1,943 | -11 | 6W / 6L |
| Feb 25, 1996 | 3rd Annual Newark Sun TV OpenTournament · View matches | 1,933 | 1,954 | +21+28 / -7 | 6W / 2L |
| Jan 21, 1996 | Cleveland Sun TV Winter OpenTournament · View matches | 1,946 | 1,933 | -13+14 / -27 | 6W / 6L |
| Nov 26, 1995 | US Open Team ChampionshipsTournament · View matches | 1,837 | 1,939 | +102 | 8W / 10L |
| Nov 5, 1995 | 1995 Millcreek OpenTournament · View matches | 1,820 | 1,837 | +17+47 / -30 | 6W / 7L |
| Oct 14, 1995 | Sun TV Canton OpenTournament · View matches | 1,828 | 1,820 | -8+2 / -10 | 2W / 3L |
| Feb 26, 1995 | Sun TV OpenTournament · View matches | 1,883 | 1,828 | -55+0 / -55 | 2W / 4L |
| Nov 27, 1994 | US TeamsTournament · View matches · USATT readjusted 1,782 → 1,867 | 1,782 | 1,883 | +16+74 / -58 | 7W / 13L |
| Nov 5, 1994 | Sun TV Canton OpenTournament · View matches | 1,797 | 1,782 | -15+2 / -17 | 2W / 4L |
| Oct 16, 1994 | 1994 Millcreek OpenTournament · View matches | 1,842 | 1,797 | -45 | 7W / 6L |
61–70 of 70
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