| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. V Grinev vs V Onischuk |
| ½-½ | 51 |
2005 |
Independence Cup A | E76 King's Indian, Four Pawns Attack |
| 2. V Onischuk vs Baklan |
| ½-½ | 77 |
2005 |
Ukrainian Championships | B58 Sicilian |
| 3. E Safarli vs V Onischuk |
| ½-½ | 27 |
2006 |
4th Young Stars of the World | B99 Sicilian, Najdorf, 7...Be7 Main line |
| 4. V Onischuk vs E Tairova |
| ½-½ | 74 |
2006 |
4th Young Stars of the World | C12 French, McCutcheon |
| 5. I Nepomniachtchi vs V Onischuk |
| ½-½ | 43 |
2006 |
4th Young Stars of the World | B90 Sicilian, Najdorf |
| 6. V Onischuk vs S Sjugirov |
| ½-½ | 89 |
2006 |
4th Young Stars of the World | B92 Sicilian, Najdorf, Opocensky Variation |
| 7. H Simonian vs V Onischuk |
| ½-½ | 47 |
2007 |
Femida Super | B06 Robatsch |
| 8. V Onischuk vs N Mamedov |
| ½-½ | 38 |
2007 |
Femida Super | B58 Sicilian |
| 9. V Onischuk vs V Aveskulov |
| ½-½ | 60 |
2007 |
Femida Super | B90 Sicilian, Najdorf |
| 10. V Onischuk vs Y Vovk |
| ½-½ | 36 |
2007 |
Ukranian U20 Championships | B23 Sicilian, Closed |
| 11. V Onischuk vs S Sjugirov |
| ½-½ | 94 |
2007 |
Femida Super | B92 Sicilian, Najdorf, Opocensky Variation |
| 12. D Kononenko vs V Onischuk |
| ½-½ | 14 |
2007 |
Ukranian U20 Championships | E69 King's Indian, Fianchetto, Classical Main line |
| 13. V Onischuk vs P Korobkov |
| ½-½ | 33 |
2007 |
Femida Super | B01 Scandinavian |
| 14. V Onischuk vs A Ipatov |
| ½-½ | 43 |
2007 |
Ukranian U20 Championships | C42 Petrov Defense |
| 15. U Atakisi vs V Onischuk |
| ½-½ | 71 |
2007 |
Femida Super | B06 Robatsch |
| 16. V Aveskulov vs V Onischuk |
| ½-½ | 67 |
2008 |
10th Rector Cup | B92 Sicilian, Najdorf, Opocensky Variation |
| 17. V Onischuk vs T Khakimov |
| ½-½ | 59 |
2008 |
10th Rector Cup | C42 Petrov Defense |
| 18. G Harutjunyan vs V Onischuk |
| ½-½ | 34 |
2008 |
10th Rector Cup | A05 Reti Opening |
| 19. N Firman vs V Onischuk |
| ½-½ | 45 |
2008 |
10th Rector Cup | B06 Robatsch |
| 20. A Kovchan vs V Onischuk |
| ½-½ | 10 |
2008 |
10th Rector Cup | B06 Robatsch |
| 21. V Onischuk vs M Brodsky |
| ½-½ | 44 |
2008 |
10th Rector Cup | B92 Sicilian, Najdorf, Opocensky Variation |