Wins
2,248
Indexed tournament wins
Player record
Dubina, Samson
Losses
711
Indexed tournament losses
Matches
2,959
Decisive results
Win rate
76.0%
Across indexed matches
Peak rating
2,614
Highest rating in the available history.
Biggest upset
Hazinski, Mark
1999 AAU/Nationals · Aug 6, 1999 · +352 rating
Open →Biggest loss
Bisker, Oleg
1998 AAU Junior Olympics · Aug 9, 1998 · -590 rating
Open →Most frequent opponent
Hamilton, Don
38 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
345 tournament appearances · synced Aug 12, 2026, 2:16 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 1, 2000 | 2000 Indianapolis Fall OpenTournament · View matches | 2,145 | 2,194 | +49 | 6W / 2L |
| Sep 17, 2000 | Willoughby Hills Giant RR OpenTournament · View matches | 2,142 | 2,145 | +3+3 / 0 | 17W / 0L |
| Aug 26, 2000 | August OpenTournament · View matches | 2,133 | 2,142 | +9 | 6W / 1L |
| Aug 20, 2000 | Matthew Murad Memorial Open oTournament · View matches | 2,100 | 2,133 | +33+39 / -6 | 6W / 4L |
| Jun 25, 2000 | Macy Block OpenTournament · View matches | 2,100 | 2,100 | 0+0 / 0 | 1W / 3L |
| Jun 18, 2000 | MDTTC June OpenTournament · View matches | 2,108 | 2,100 | -8 | 4W / 2L |
| May 28, 2000 | St. Joseph Valley OpenTournament · View matches | 2,140 | 2,108 | -32+4 / -36 | 2W / 5L |
| Apr 23, 2000 | Portsmouth Open InvitationalTournament · View matches | 2,152 | 2,140 | -12+13 / -25 | 10W / 1L |
| Apr 15, 2000 | Three Rivers Spring TournamentTournament · View matches | 2,137 | 2,152 | +15+35 / -20 | 4W / 2L |
| Apr 8, 2000 | Dayton Giant RRTournament · View matches | 2,091 | 2,137 | +46+51 / -5 | 8W / 1L |
| Mar 25, 2000 | March Madness Canton OpenTournament · View matches | 2,069 | 2,091 | +22+22 / 0 | 9W / 0L |
| Mar 19, 2000 | Buckeye Open TTTTournament · View matches | 2,076 | 2,069 | -7+8 / -15 | 3W / 3L |
| Feb 19, 2000 | Florida One Day RRTournament · View matches | 2,095 | 2,076 | -19+1 / -20 | 2W / 1L |
| Jan 22, 2000 | Columbus Open RRTournament · View matches | 2,100 | 2,094 | -6+17 / -23 | 3W / 3L |
| Jan 9, 2000 | Cleveland Winter Open 2000Tournament · View matches | 2,000 | 2,100 | +100 | 12W / 3L |
| Nov 28, 1999 | 1999 NA Teams 2Tournament · View matches | 2,132 | 2,000 | -132 | 4W / 16L |
| Nov 6, 1999 | Dayton Giant RR OpenTournament · View matches | 2,116 | 2,132 | +16+32 / -16 | 6W / 3L |
| Sep 25, 1999 | Cincinnati Giant RR OpenTournament · View matches · USATT readjusted 2,014 → 2,088 | 2,014 | 2,116 | +28+48 / -20 | 6W / 2L |
| Sep 18, 1999 | South Bend Autumn OpenTournament · View matches | 2,017 | 2,014 | -3+39 / -42 | 7W / 4L |
| Sep 12, 1999 | Portsmouth Open InvitationalTournament · View matches | 2,014 | 2,017 | +3+16 / -13 | 6W / 1L |