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 9, 2026, 4:22 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Oct 12, 2008 | 23rd Annual Bernard Hock OpenTournament · View matches | 2,504 | 2,504 | 0+0 / 0 | 14W / 0L |
| Jul 5, 2008 | U.S. OpenTournament · View matches | 2,505 | 2,504 | -1+0 / -1 | 2W / 1L |
| Jul 3, 2008 | North American ChampionshipsTournament · View matches | 2,505 | 2,505 | 0+4 / -4 | 1W / 2L |
| Jun 14, 2008 | 2008 Ohio Championship ClosedTournament · View matches | 2,505 | 2,505 | 0+0 / 0 | 3W / 0L |
| May 25, 2008 | Northern Kentucky Spring OpenTournament · View matches | 2,511 | 2,505 | -6+1 / -7 | 5W / 1L |
| May 4, 2008 | Robo-Pong St. Joe Valley OpenTournament · View matches | 2,430 | 2,511 | +81 | 11W / 1L |
| Mar 2, 2008 | 2008 Arnold TT ChampionshipsTournament · View matches | 2,427 | 2,430 | +3+4 / -1 | 11W / 1L |
| Feb 16, 2008 | Macy Block Giant RR OpenTournament · View matches | 2,431 | 2,427 | -4+6 / -10 | 9W / 1L |
| Jan 26, 2008 | Northern KY Winter 2008 TournamentTournament · View matches | 2,444 | 2,431 | -13+3 / -16 | 6W / 1L |
| Jan 13, 2008 | Olympic TrialsTournament · View matches | 2,460 | 2,444 | -16+0 / -16 | 1W / 1L |
| Dec 22, 2007 | USA National Table Tennis ChamTournament · View matches | 2,458 | 2,460 | +2+3 / -1 | 2W / 1L |
| Nov 25, 2007 | 2007 JOOLA N. American Teams OTournament · View matches | 2,475 | 2,458 | -17 | 3W / 4L |
| Nov 4, 2007 | Bob Viducich Stiga Pacific RimTournament · View matches | 2,472 | 2,475 | +3+29 / -26 | 7W / 2L |
| Oct 21, 2007 | 2007 JOOLA North American TourTournament · View matches | 2,475 | 2,472 | -3+12 / -15 | 3W / 3L |
| Sep 16, 2007 | 2007 Berkeley OpenTournament · View matches | 2,449 | 2,475 | +26+32 / -6 | 7W / 2L |
| Jul 7, 2007 | U.S. Open ChampionshipsTournament · View matches | 2,462 | 2,449 | -13+0 / -13 | 3W / 2L |
| Jul 1, 2007 | The South Florida TT OpenTournament · View matches | 2,466 | 2,462 | -4+16 / -20 | 9W / 3L |
| May 27, 2007 | Eastern OpenTournament · View matches | 2,467 | 2,466 | -1+16 / -17 | 5W / 2L |
| May 6, 2007 | No. Kentucky/Cincinnati 2007 OTournament · View matches | 2,469 | 2,467 | -2+4 / -6 | 7W / 1L |
| Mar 3, 2007 | Pan Am TrialsTournament · View matches | 2,479 | 2,469 | -10+32 / -42 | 4W / 7L |