| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Y Kuzubov vs V Onischuk |
| 1-0 | 40 |
2001 |
UKR-ch U12 | E76 King's Indian, Four Pawns Attack |
| 2. V Grinev vs V Onischuk |
| ½-½ | 51 |
2005 |
Independence Cup A | E76 King's Indian, Four Pawns Attack |
| 3. Baklan vs V Onischuk |
| 1-0 | 32 |
2005 |
Ukrainian Championships | B54 Sicilian |
| 4. V Stopkin vs V Onischuk |
| 0-1 | 38 |
2005 |
3rd V Nabokov Mem | A26 English |
| 5. E Andreev vs V Onischuk |
| 1-0 | 35 |
2005 |
Ukrainian Championship | B90 Sicilian, Najdorf |
| 6. V Onischuk vs Baklan |
| ½-½ | 77 |
2005 |
Ukrainian Championships | B58 Sicilian |
| 7. V Onischuk vs D Lintchevski |
| 0-1 | 37 |
2006 |
4th Young Stars of the World | B33 Sicilian |
| 8. V Onischuk vs E Tairova |
| ½-½ | 74 |
2006 |
4th Young Stars of the World | C12 French, McCutcheon |
| 9. I Nepomniachtchi vs V Onischuk |
| ½-½ | 43 |
2006 |
4th Young Stars of the World | B90 Sicilian, Najdorf |
| 10. E Safarli vs V Onischuk |
| ½-½ | 27 |
2006 |
4th Young Stars of the World | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 11. I Popov vs V Onischuk |
| 1-0 | 57 |
2006 |
4th Young Stars of the World | A45 Queen's Pawn Game |
| 12. V Onischuk vs S Sjugirov |
| ½-½ | 89 |
2006 |
4th Young Stars of the World | B92 Sicilian, Najdorf, Opocensky Variation |
| 13. V Onischuk vs F Caruana |
 | 0-1 | 29 |
2006 |
4th Young Stars of the World | C18 French, Winawer |
| 14. V Onischuk vs A Volodin |
| 0-1 | 68 |
2006 |
4th Young Stars of the World | B80 Sicilian, Scheveningen |
| 15. V Onischuk vs A Kulikov |
| 1-0 | 36 |
2006 |
4th Young Stars of the World | B00 Uncommon King's Pawn Opening |
| 16. R Hovhannisyan vs V Onischuk |
| 0-1 | 61 |
2006 |
4th Young Stars of the World | B90 Sicilian, Najdorf |
| 17. S Narayanan vs V Onischuk |
| 0-1 | 47 |
2006 |
4th Young Stars of the World | B22 Sicilian, Alapin |
| 18. A Tukhaev vs V Onischuk |
| 0-1 | 61 |
2007 |
Ukranian U20 Championships | B90 Sicilian, Najdorf |
| 19. V Onischuk vs Y Erturan |
| 1-0 | 50 |
2007 |
Femida Super | C65 Ruy Lopez, Berlin Defense |
| 20. V Onischuk vs V Aveskulov |
| ½-½ | 60 |
2007 |
Femida Super | B90 Sicilian, Najdorf |
| 21. Y Zherebukh vs V Onischuk |
| 0-1 | 29 |
2007 |
Ukranian U20 Championships | B10 Caro-Kann |
| 22. V Shalimov vs V Onischuk |
| 1-0 | 57 |
2007 |
Femida Super | A48 King's Indian |
| 23. V Onischuk vs M Serik |
| 1-0 | 61 |
2007 |
Ukranian U20 Championships | C78 Ruy Lopez |
| 24. I Nyzhnyk vs V Onischuk |
 | 0-1 | 71 |
2007 |
UKR-ch U16 | E61 King's Indian |
| 25. G Arzumanian vs V Onischuk |
| 0-1 | 82 |
2007 |
Femida Super | B92 Sicilian, Najdorf, Opocensky Variation |