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 |
|---|---|---|---|---|---|
| Oct 25, 2015 | 2015 South Shore Butterfly OpenTournament · View matches | 2,527 | 2,541 | +14+21 / -7 | 4W / 1L |
| Oct 18, 2015 | 2015 Millcreek OpenTournament · View matches | 2,524 | 2,527 | +3+3 / 0 | 6W / 0L |
| Sep 11, 2015 | Newgy Ohio OpenTournament · View matches | 2,558 | 2,524 | -34+11 / -45 | 15W / 2L |
| Aug 22, 2015 | Strongsville Summer Snake Seed OpenTournament · View matches | 2,554 | 2,558 | +4+4 / 0 | 10W / 0L |
| Jul 11, 2015 | 2015 U.S. Open Tournament · View matches | 2,560 | 2,554 | -6 | 6W / 2L |
| Jun 13, 2015 | 2015 Butterfly MDTTC OpenTournament · View matches | 2,554 | 2,560 | +6+12 / -6 | 5W / 1L |
| May 2, 2015 | Pittsburgh Steel City OpenTournament · View matches | 2,543 | 2,543 | 0+0 / 0 | 6W / 0L |
| Apr 12, 2015 | 2015 Millcreek OpenTournament · View matches | 2,541 | 2,543 | +2+2 / 0 | 8W / 0L |
| Mar 21, 2015 | Newgy Ohio OpenTournament · View matches | 2,438 | 2,541 | +103 | 19W / 0L |
| Mar 8, 2015 | 2015 Pan Am and National Team TrialsTournament · View matches | 2,447 | 2,438 | -9+3 / -12 | 2W / 2L |
| Mar 1, 2015 | Rochester Open 2015Tournament · View matches | 2,442 | 2,447 | +5+5 / 0 | 6W / 0L |
| Jan 31, 2015 | Texas Wesleyan OpenTournament · View matches | 2,465 | 2,442 | -23+0 / -23 | 4W / 3L |
| Jan 18, 2015 | 2015 Butterfly Aurora CupTournament · View matches | 2,463 | 2,465 | +2+7 / -5 | 4W / 1L |
| Dec 20, 2014 | 2014 US National ChampionshipsTournament · View matches | 2,490 | 2,463 | -27+0 / -27 | 2W / 2L |
| Nov 30, 2014 | 2014 JOOLA North American Teams ChampionshipsTournament · View matches | 2,514 | 2,490 | -24+9 / -33 | 3W / 6L |
| Oct 26, 2014 | South Shore Sports/Butterfly OpenTournament · View matches | 2,482 | 2,514 | +32+32 / 0 | 5W / 0L |
| Oct 19, 2014 | 2014 Millcreek OpenTournament · View matches | 2,475 | 2,482 | +7+7 / 0 | 7W / 0L |
| Sep 27, 2014 | September Newgy Akron Open (42 Points)Tournament · View matches | 2,481 | 2,475 | -6+7 / -13 | 7W / 2L |
| Jul 5, 2014 | US OpenTournament · View matches | 2,482 | 2,481 | -1+19 / -20 | 8W / 3L |
| Jun 7, 2014 | 2014 Indy Giant RRTournament · View matches | 2,481 | 2,482 | +1+1 / 0 | 7W / 0L |