| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. E Groberman vs O Sagalchik |
| 1-0 | 37 |
2000 |
ch-USA Women | B43 Sicilian, Kan, 5.Nc3 |
| 2. C Baginskaite vs O Sagalchik |
| 1-0 | 33 |
2000 |
ch-USA Women | D09 Queen's Gambit Declined, Albin Counter Gambit, 5.g3 |
| 3. O Sagalchik vs Y Gorlin |
| 0-1 | 33 |
2000 |
ch-USA Women | A18 English, Mikenas-Carls |
| 4. S Airapetian vs O Sagalchik |
| 1-0 | 62 |
2000 |
ch-USA Women | B50 Sicilian |
| 5. O Sagalchik vs A Prasetyo |
| 0-1 | 53 |
2001 |
NCC | D44 Queen's Gambit Declined Semi-Slav |
| 6. B Finegold vs O Sagalchik |
| 1-0 | 53 |
2001 |
NCC | D08 Queen's Gambit Declined, Albin Counter Gambit |
| 7. O Sagalchik vs T Karatekin |
| 0-1 | 46 |
2001 |
US Open | A57 Benko Gambit |
| 8. O Sagalchik vs A Pixton |
| 0-1 | 46 |
2002 |
ch-USA | A10 English |
| 9. S Kriventsov vs O Sagalchik |
| 1-0 | 36 |
2002 |
ch-USA | B56 Sicilian |
| 10. E Groberman vs O Sagalchik |
| 1-0 | 54 |
2002 |
ch-USA | B28 Sicilian, O'Kelly Variation |
| 11. O Sagalchik vs C Baginskaite |
| 0-1 | 44 |
2002 |
ch-USA | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 12. O Sagalchik vs V Strugatsky |
| 0-1 | 47 |
2002 |
ch-USA | D47 Queen's Gambit Declined Semi-Slav |
| 13. O Sagalchik vs Tobares Leandro |
| 0-1 | 63 |
2003 |
Torneo Continental Americano | D88 Grunfeld, Spassky Variation, Main line, 10...cd, 11.cd |
| 14. O Sagalchik vs J Hobaica |
| 0-1 | 33 |
2003 |
Torneo Continental Americano | D43 Queen's Gambit Declined Semi-Slav |
| 15. O Sagalchik vs I Krush |
| 0-1 | 26 |
2003 |
US Championships 2003 | D00 Queen's Pawn Game |
| 16. G Shahade vs O Sagalchik |
| 1-0 | 59 |
2003 |
US Championships 2003 | B43 Sicilian, Kan, 5.Nc3 |
| 17. O Sagalchik vs Ashley |
| 0-1 | 38 |
2003 |
US Championships 2003 | E47 Nimzo-Indian, 4.e3 O-O 5.Bd3 |
| 18. O Sagalchik vs C Airapetian |
| 0-1 | 67 |
2004 |
Chessmaster US Championships 2005 | E84 King's Indian, Samisch, Panno Main line |
| 19. T Vayserberg vs O Sagalchik |
 | 1-0 | 68 |
2004 |
Chessmaster US Championships 2005 | B23 Sicilian, Closed |
| 20. A Hahn vs O Sagalchik |
| 1-0 | 27 |
2004 |
Chessmaster US Championships 2005 | D09 Queen's Gambit Declined, Albin Counter Gambit, 5.g3 |
| 21. O Sagalchik vs S Muhammad |
| 0-1 | 49 |
2004 |
Chessmaster US Championships 2005 | A80 Dutch |
| 22. O Sagalchik vs I Zenyuk |
| 0-1 | 63 |
2004 |
Chessmaster US Championships 2005 | E76 King's Indian, Four Pawns Attack |
| 23. R Burnett vs O Sagalchik |
| 1-0 | 54 |
2004 |
Chessmaster US Championships 2005 | A04 Reti Opening |
| 24. A Levina vs O Sagalchik |
| 1-0 | 23 |
2004 |
Chessmaster US Championships 2005 | B01 Scandinavian |
| 25. O Sagalchik vs C Lakdawala |
| 0-1 | 61 |
2004 |
Chessmaster US Championships 2005 | D19 Queen's Gambit Declined Slav, Dutch |