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 2, 2005 | 2005 SpinmaniaTournament · View matches | 2,312 | 2,302 | -10+17 / -27 | 6W / 3L |
| Sep 4, 2005 | Kam Man Cup - Metropolitan OpeTournament · View matches | 2,353 | 2,312 | -41+30 / -71 | 2W / 8L |
| Jul 24, 2005 | 2005 Eastern Open/Zhi Yu CupTournament · View matches | 2,366 | 2,353 | -13+2 / -15 | 5W / 4L |
| Jul 10, 2005 | US OpenTournament · View matches | 2,386 | 2,366 | -20+8 / -28 | 5W / 4L |
| Jul 3, 2005 | So. FL US Open Warm Up TournamTournament · View matches | 2,410 | 2,386 | -24+8 / -32 | 5W / 2L |
| Jun 26, 2005 | Stiga OpenTournament · View matches | 2,447 | 2,410 | -37+2 / -39 | 2W / 4L |
| May 29, 2005 | Matthew Murad Memorial Open 20Tournament · View matches | 2,449 | 2,447 | -2+2 / -4 | 13W / 2L |
| Apr 24, 2005 | Buckeye Open 2005Tournament · View matches | 2,473 | 2,449 | -24+7 / -31 | 8W / 3L |
| Apr 17, 2005 | The Crazier Eights Cleveland OTournament · View matches | 2,469 | 2,473 | +4+4 / 0 | 16W / 0L |
| Mar 26, 2005 | North American ChampionshipsTournament · View matches | 2,481 | 2,469 | -12+0 / -12 | 0W / 3L |
| Feb 27, 2005 | Rochester, NY Giant RRTournament · View matches | 2,481 | 2,481 | 0+0 / 0 | 14W / 0L |
| Feb 20, 2005 | Lechi/West Covina TTC OpenTournament · View matches · USATT readjusted 2,341 → 2,460 | 2,341 | 2,481 | +21+35 / -14 | 15W / 2L |
| Jan 23, 2005 | 2005 Cleveland Winter OpenTournament · View matches | 2,361 | 2,341 | -20+5 / -25 | 11W / 1L |
| Dec 18, 2004 | 2004 USA Nationals ChampionshipTournament · View matches | 2,350 | 2,361 | +11+21 / -10 | 7W / 3L |
| Nov 28, 2004 | 2004 N. American Teams Open TTTournament · View matches | 2,345 | 2,350 | +5+47 / -42 | 3W / 10L |
| Oct 24, 2004 | 2004 Millcreek OpenTournament · View matches | 2,384 | 2,345 | -39+2 / -41 | 10W / 2L |
| Sep 11, 2004 | Northern Kentucky Fall RR OpenTournament · View matches | 2,370 | 2,384 | +14+14 / 0 | 9W / 0L |
| Aug 22, 2004 | Matthew J. Murad Memorial OpenTournament · View matches | 2,376 | 2,370 | -6+37 / -43 | 10W / 3L |
| Jul 17, 2004 | 2004 Ohio Closed ChampionshipsTournament · View matches | 2,373 | 2,376 | +3+3 / 0 | 4W / 0L |
| Jul 4, 2004 | US OpenTournament · View matches | 2,365 | 2,373 | +8+40 / -32 | 6W / 7L |