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 |
|---|---|---|---|---|---|
| May 26, 2002 | St. Joseph Valley OpenTournament · View matches | 2,073 | 2,045 | -28+14 / -42 | 5W / 4L |
| May 12, 2002 | Cleveland 2002 Spring OpenTournament · View matches | 2,082 | 2,073 | -9 | 9W / 3L |
| Apr 27, 2002 | Mid-Ohio Camper Sales OpenTournament · View matches · USATT readjusted 1,992 → 2,054 | 1,992 | 2,082 | +28+40 / -12 | 6W / 3L |
| Mar 24, 2002 | Buckeye OpenTournament · View matches | 2,050 | 1,992 | -58+0 / -58 | 2W / 4L |
| Dec 15, 2001 | South Bend Senoda OpenTournament · View matches | 2,080 | 2,050 | -30+0 / -30 | 3W / 2L |
| Nov 25, 2001 | 2001 Stiga No. American TeamsTournament · View matches · USATT readjusted 1,995 → 2,048 | 1,995 | 2,080 | +32+47 / -15 | 3W / 5L |
| Oct 21, 2001 | 2001 Millcreek OpenTournament · View matches | 2,046 | 1,995 | -51+2 / -53 | 2W / 3L |
| Sep 15, 2001 | Three Rivers TTC Fall TournameTournament · View matches | 2,077 | 2,046 | -31+4 / -35 | 4W / 2L |
| Aug 19, 2001 | Macy Block OpenTournament · View matches | 2,074 | 2,077 | +3+4 / -1 | 1W / 1L |
| May 27, 2001 | 36th St. Joseph Valley OpenTournament · View matches | 2,097 | 2,074 | -23 | 4W / 2L |
| May 5, 2001 | Three Rivers TTC Spring TournaTournament · View matches | 2,055 | 2,097 | +42 | 7W / 6L |
| Apr 29, 2001 | 2001 Ohio ChampionshipsTournament · View matches | 2,055 | 2,075 | +20+25 / -5 | 3W / 2L |
| Mar 18, 2001 | Buckeye Open 2001Tournament · View matches | 2,067 | 2,055 | -12+6 / -18 | 4W / 3L |
| Mar 3, 2001 | March Madness Canton OpenTournament · View matches | 2,026 | 2,067 | +41 | 5W / 2L |
| Feb 17, 2001 | Mid Ohio Camper Sales OpenTournament · View matches | 2,047 | 2,026 | -21+4 / -25 | 4W / 4L |
| Jan 21, 2001 | Cleveland Winter Open 2001Tournament · View matches | 2,058 | 2,047 | -11+1 / -12 | 3W / 2L |
| Dec 2, 2000 | South Bend OpenTournament · View matches | 2,030 | 2,058 | +28 | 6W / 2L |
| Oct 22, 2000 | 2000 Millcreek OpenTournament · View matches | 2,008 | 2,030 | +22 | 6W / 2L |
| Oct 8, 2000 | South Bend Fall OpenTournament · View matches | 2,001 | 2,008 | +7+20 / -13 | 1W / 6L |
| Sep 17, 2000 | Willoughby Hills Giant RR OpenTournament · View matches | 1,996 | 2,001 | +5+7 / -2 | 7W / 1L |