Wins
2,248
Indexed tournament wins
Player record
Dubina, Samson
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
Hazinski, Mark
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
Hamilton, Don
38 matches
Open →Rating trajectory
Published rating movement across recorded events.
Tournament history
345 tournament appearances · synced Aug 8, 2026, 2:14 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Aug 10, 2018 | Spin & Smash 2018 Summer OpenTournament · View matches | 2,457 | 2,427 | -30+0 / -30 | 4W / 1L |
| Jul 2, 2018 | US Nationals Tournament · View matches | 2,439 | 2,457 | +18+32 / -14 | 4W / 2L |
| Jun 8, 2018 | Spin & Smash June OpenTournament · View matches | 2,448 | 2,439 | -9+0 / -9 | 2W / 2L |
| May 19, 2018 | Pittsburgh Steel City OpenTournament · View matches | 2,450 | 2,448 | -2+4 / -6 | 3W / 1L |
| Mar 2, 2018 | 2018 Arnold Table Tennis ChallengeTournament · View matches | 2,428 | 2,450 | +22+48 / -26 | 2W / 6L |
| Feb 16, 2018 | $3000 Newgy Ohio OpenTournament · View matches | 2,505 | 2,428 | -77+2 / -79 | 11W / 7L |
| Dec 17, 2017 | US OpenTournament · View matches | 2,485 | 2,505 | +20+20 / 0 | 9W / 1L |
| Dec 1, 2017 | Spin & Smash $2100+ December OpenTournament · View matches | 2,488 | 2,485 | -3+1 / -4 | 5W / 1L |
| Nov 24, 2017 | 20th Annual North American Team Championship Powered By JOOLATournament · View matches | 2,465 | 2,488 | +23+35 / -12 | 6W / 4L |
| Oct 28, 2017 | South Shore Sports & Butterfly OpenTournament · View matches | 2,464 | 2,465 | +1+3 / -2 | 2W / 1L |
| Oct 14, 2017 | 2017 Millcreek OpenTournament · View matches | 2,449 | 2,464 | +15+15 / 0 | 6W / 0L |
| Oct 6, 2017 | Spin & Smash $2100+ Fall OpenTournament · View matches | 2,455 | 2,449 | -6+0 / -6 | 4W / 1L |
| Sep 15, 2017 | 2017 Butterfly Badger OpenTournament · View matches | 2,461 | 2,455 | -6+10 / -16 | 4W / 1L |
| Sep 8, 2017 | $3000 Presper Financial Architects OpenTournament · View matches | 2,413 | 2,461 | +48+57 / -9 | 11W / 4L |
| Aug 19, 2017 | 2017 Hawkeye OpenTournament · View matches | 2,407 | 2,413 | +6+6 / 0 | 4W / 1L |
| Aug 4, 2017 | Spin & Smash $2000+ Summer OpenTournament · View matches | 2,406 | 2,407 | +1+1 / 0 | 6W / 0L |
| Jul 3, 2017 | 2017 SuperMicro US NationalsTournament · View matches | 2,468 | 2,406 | -62+3 / -65 | 9W / 3L |
| May 20, 2017 | 2017 Pittsburgh Steel City OpenTournament · View matches | 2,465 | 2,468 | +3+8 / -5 | 5W / 1L |
| Apr 22, 2017 | 2017 Millcreek Giant Round RobinTournament · View matches | 2,450 | 2,465 | +15+15 / 0 | 8W / 0L |
| Apr 1, 2017 | DAC April Open 2017Tournament · View matches | 2,442 | 2,450 | +8+14 / -6 | 6W / 1L |