Wins
2,248
Indexed tournament wins
Player record
Samson Dubina
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
Mark Hazinski
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
Don Hamilton
38 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
345 tournament appearances · synced Aug 8, 2026, 3:32 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Dec 17, 2011 | 2011 US NationalsTournament · View matches | 2,442 | 2,445 | +3+6 / -3 | 1W / 1L |
| Nov 27, 2011 | 2011 JOOLA N. American Teams OTournament · View matches | 2,485 | 2,442 | -43 | 3W / 7L |
| Nov 13, 2011 | South Shore Sports/Butterfly OpenTournament · View matches | 2,490 | 2,485 | -5+1 / -6 | 2W / 1L |
| Nov 6, 2011 | 15th FIT OpenTournament · View matches | 2,482 | 2,490 | +8 | 4W / 1L |
| Oct 29, 2011 | Macy Block OpenTournament · View matches | 2,479 | 2,482 | +3 | 5W / 2L |
| Oct 23, 2011 | 2011 Millcreek OpenTournament · View matches | 2,465 | 2,479 | +14+14 / 0 | 6W / 0L |
| Oct 9, 2011 | 26th Annual Bernard Hock OpenTournament · View matches | 2,450 | 2,465 | +15+22 / -7 | 6W / 1L |
| Sep 24, 2011 | Rubber City Fall OpenTournament · View matches | 2,450 | 2,450 | 0+0 / 0 | 6W / 0L |
| Sep 4, 2011 | LA Open TT Tournament 2011Tournament · View matches | 2,459 | 2,450 | -9+2 / -11 | 5W / 2L |
| Aug 21, 2011 | Strongsville Summer OpenTournament · View matches | 2,460 | 2,459 | -1+1 / -2 | 8W / 2L |
| Jul 4, 2011 | 2011 US OpenTournament · View matches | 2,461 | 2,460 | -1+6 / -7 | 5W / 2L |
| Jun 26, 2011 | So. FL Newgy Robo Pong US Open Warm UpTournament · View matches | 2,468 | 2,461 | -7+9 / -16 | 8W / 2L |
| May 15, 2011 | 2011 Potomac Spring OpenTournament · View matches | 2,470 | 2,468 | -2+4 / -6 | 5W / 1L |
| May 7, 2011 | Newgy Snake Seed Oberlin CollegeTournament · View matches | 2,476 | 2,470 | -6+0 / -6 | 10W / 1L |
| Apr 23, 2011 | Macy Block OpenTournament · View matches | 2,482 | 2,476 | -6+7 / -13 | 5W / 1L |
| Apr 17, 2011 | Millcreek Giant RRTournament · View matches | 2,476 | 2,482 | +6+6 / 0 | 8W / 0L |
| Mar 26, 2011 | 2011 RoboPong Giant RRTournament · View matches | 2,476 | 2,476 | 0+0 / 0 | 8W / 0L |
| Mar 13, 2011 | RoboPong St. Joseph Valley OpeTournament · View matches | 2,473 | 2,476 | +3+5 / -2 | 2W / 1L |
| Mar 6, 2011 | Arnold TT ChampionsipsTournament · View matches | 2,473 | 2,473 | 0+0 / 0 | 3W / 0L |
| Feb 26, 2011 | 2011 Pan Am / National Team TrTournament · View matches | 2,486 | 2,473 | -13+5 / -18 | 2W / 4L |