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 |
|---|---|---|---|---|---|
| Mar 3, 2017 | 2017 Arnold Table Tennis ChallengeTournament · View matches | 2,432 | 2,442 | +10+15 / -5 | 10W / 1L |
| Feb 17, 2017 | $3000 Newgy Ohio Open 2017Tournament · View matches | 2,452 | 2,432 | -20+6 / -26 | 9W / 3L |
| Dec 12, 2016 | 2016 US OpenTournament · View matches | 2,547 | 2,452 | -95+4 / -99 | 11W / 5L |
| Nov 12, 2016 | 2016 Stiga Portland OpenTournament · View matches | 2,555 | 2,547 | -8+0 / -8 | 3W / 1L |
| Oct 22, 2016 | 2016 Millcreek OpenTournament · View matches | 2,554 | 2,555 | +1+1 / 0 | 8W / 0L |
| Sep 2, 2016 | Newgy Ohio Labor Day OpenTournament · View matches | 2,564 | 2,554 | -10+16 / -26 | 13W / 2L |
| Jul 4, 2016 | 2016 USA Table Tennis National ChampionshipTournament · View matches | 2,614 | 2,564 | -50+1 / -51 | 4W / 2L |
| May 21, 2016 | 2016 Cincinnati OpenTournament · View matches | 2,614 | 2,614 | 0+0 / 0 | 8W / 0L |
| May 14, 2016 | 2016 Pittsburgh Steel City OpenTournament · View matches | 2,614 | 2,614 | 0+0 / 0 | 7W / 0L |
| May 6, 2016 | $3000 Newgy Ohio OpenTournament · View matches · USATT readjusted 2,491 → 2,593 | 2,491 | 2,614 | +21+39 / -18 | 15W / 2L |
| Apr 23, 2016 | DAC April OpenTournament · View matches | 2,495 | 2,491 | -4+2 / -6 | 5W / 1L |
| Apr 16, 2016 | 2016 Millcreek Giant Round RobinTournament · View matches | 2,482 | 2,495 | +13+13 / 0 | 8W / 0L |
| Mar 4, 2016 | Arnold Table Tennis ChallengeTournament · View matches | 2,456 | 2,482 | +26+37 / -11 | 10W / 2L |
| Feb 4, 2016 | USATT Men's Olympic TrialsTournament · View matches | 2,473 | 2,456 | -17+0 / -17 | 2W / 2L |
| Jan 15, 2016 | 2016 Aurora CupTournament · View matches | 2,503 | 2,473 | -30+0 / -30 | 2W / 1L |
| Dec 20, 2015 | 2015 US National Team TrialsTournament · View matches | 2,514 | 2,503 | -11+5 / -16 | 1W / 2L |
| Dec 14, 2015 | US NationalsTournament · View matches | 2,489 | 2,514 | +25+30 / -5 | 6W / 1L |
| Dec 11, 2015 | Paddle Palace Akron OpenTournament · View matches | 2,529 | 2,489 | -40+0 / -40 | 11W / 1L |
| Dec 5, 2015 | Princeton Pong Fall OpenTournament · View matches | 2,558 | 2,532 | -26+0 / -26 | 1W / 2L |
| Nov 15, 2015 | 2015 Stiga Portland OpenTournament · View matches | 2,541 | 2,558 | +17+17 / 0 | 7W / 0L |