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 11, 2026, 4:10 AM
| Date | Tournament | Rating in | Rating after | Points changed | Record |
|---|---|---|---|---|---|
| Nov 25, 2001 | 2001 Stiga No. American TeamsTournament · View matches | 2,229 | 2,246 | +17+68 / -51 | 18W / 6L |
| Nov 10, 2001 | Dayton Giant RR OpenTournament · View matches | 2,206 | 2,229 | +23+23 / 0 | 10W / 0L |
| Nov 4, 2001 | Stiga Pacific Rim OpenTournament · View matches | 2,220 | 2,206 | -14+9 / -23 | 8W / 3L |
| Oct 21, 2001 | Colorado Springs 16th Annual OTournament · View matches | 2,224 | 2,220 | -4+0 / -4 | 2W / 1L |
| Sep 22, 2001 | City Limits OpenTournament · View matches | 2,241 | 2,224 | -17+12 / -29 | 10W / 2L |
| Sep 9, 2001 | Willoughby Hills Giant RR OpenTournament · View matches | 2,281 | 2,241 | -40+0 / -40 | 5W / 1L |
| Jul 8, 2001 | 2001 US Open 3Tournament · View matches · USATT readjusted 2,113 → 2,244 | 2,113 | 2,281 | +37+111 / -74 | 9W / 6L |
| Jun 24, 2001 | California State OpenTournament · View matches | 2,154 | 2,113 | -41+4 / -45 | 2W / 1L |
| May 27, 2001 | 36th St. Joseph Valley OpenTournament · View matches | 2,143 | 2,154 | +11 | 6W / 6L |
| May 5, 2001 | Three Rivers TTC Spring TournaTournament · View matches | 2,251 | 2,143 | -108 | 3W / 5L |
| Apr 29, 2001 | 2001 Ohio ChampionshipsTournament · View matches | 2,251 | 2,279 | +28 | 7W / 0L |
| Apr 7, 2001 | Dayton Giant RR OpenTournament · View matches | 2,254 | 2,251 | -3+17 / -20 | 8W / 1L |
| Mar 18, 2001 | Buckeye Open 2001Tournament · View matches | 2,243 | 2,254 | +11 | 8W / 5L |
| Mar 3, 2001 | March Madness Canton OpenTournament · View matches | 2,260 | 2,243 | -17+10 / -27 | 10W / 2L |
| Dec 17, 2000 | 2000 USATT National ChampionshipTournament · View matches · USATT readjusted 2,154 → 2,236 | 2,154 | 2,260 | +24+65 / -41 | 18W / 5L |
| Nov 26, 2000 | No. Amer. Teams Open ChampionshipsTournament · View matches | 2,213 | 2,154 | -59+33 / -92 | 6W / 13L |
| Nov 11, 2000 | Dayton Giant RR OpenTournament · View matches | 2,202 | 2,213 | +11+11 / 0 | 7W / 0L |
| Nov 4, 2000 | Three Rivers TTC Fall TournamentTournament · View matches | 2,178 | 2,202 | +24 | 5W / 2L |
| Oct 22, 2000 | 2000 Millcreek OpenTournament · View matches | 2,191 | 2,178 | -13+0 / -13 | 1W / 2L |
| Oct 8, 2000 | South Bend Fall OpenTournament · View matches | 2,194 | 2,191 | -3+22 / -25 | 5W / 3L |