| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. G Lamard vs O Ladva |
| ½-½ | 64 | 2007 | EU-ch U10 17th | D02 Queen's Pawn Game |
| 2. O Ladva vs K Shiven |
| ½-½ | 85 | 2010 | WYCC Open U14 | B63 Sicilian, Richter-Rauzer Attack |
| 3. A Volodin vs O Ladva |
| 1-0 | 55 | 2010 | 11th Puhajarve Rapid | D12 Queen's Gambit Declined Slav |
| 4. O Sepp vs O Ladva |
| 0-1 | 39 | 2010 | 11th Puhajarve Rapid | A06 Reti Opening |
| 5. O Ladva vs Korchnoi |
 | 1-0 | 42 | 2010 | 11th Puhajarve Rapid | C11 French |
| 6. O Ladva vs K Kulaots |
| 1-0 | 30 | 2010 | 11th Puhajarve Rapid | B42 Sicilian, Kan |
| 7. O Ladva vs Ehlvest |
| 1-0 | 55 | 2010 | 11th Puhajarve Rapid | B06 Robatsch |
| 8. Nyback vs O Ladva |
| 1-0 | 31 | 2010 | 11th Puhajarve Rapid | D12 Queen's Gambit Declined Slav |
| 9. M Kanep vs O Ladva |
| 1-0 | 26 | 2010 | 11th Puhajarve Rapid | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 10. V Kovalev vs O Ladva |
| 1-0 | 34 | 2011 | European Rapid Championship | B33 Sicilian |
| 11. M Kravtsiv vs O Ladva |
| 1-0 | 54 | 2011 | European Rapid Championship | B33 Sicilian |
| 12. O Ladva vs E Podolchenko |
| 0-1 | 31 | 2011 | European Rapid Championship | C11 French |
| 13. A Zhigalko vs O Ladva |
| 1-0 | 46 | 2011 | European Rapid Championship | B45 Sicilian, Taimanov |
| 14. O Ladva vs D Fraczek |
| 1-0 | 40 | 2011 | European Rapid Championship | C11 French |
| 15. O Ladva vs M Andersen |
| 1-0 | 84 | 2012 | World Junior Championship | C91 Ruy Lopez, Closed |
| 16. O Ladva vs T Baron |
| 0-1 | 32 | 2012 | World Junior Championship | B32 Sicilian |
| 17. S De Filomeno vs O Ladva |
| 1-0 | 51 | 2012 | World Junior Championship | B32 Sicilian |
| 18. K Wageih vs O Ladva |
| 1-0 | 40 | 2012 | World Junior Championship | A46 Queen's Pawn Game |
| 19. B Gaealafshwe vs O Ladva |
| 0-1 | 47 | 2012 | Istanbul Olympiad | D55 Queen's Gambit Declined |
| 20. M Pacheco vs O Ladva |
| ½-½ | 46 | 2012 | Istanbul Olympiad | D56 Queen's Gambit Declined |
| 21. O Ladva vs J Molina |
| 1-0 | 43 | 2012 | Istanbul Olympiad | B14 Caro-Kann, Panov-Botvinnik Attack |
| 22. L Sanguinetti vs O Ladva |
| 1-0 | 51 | 2012 | Istanbul Olympiad | C01 French, Exchange |
| 23. O Ladva vs Deergha Raj Joshi |
| 1-0 | 50 | 2012 | Istanbul Olympiad | B14 Caro-Kann, Panov-Botvinnik Attack |
| 24. R Montanez Nazario vs O Ladva |
| 0-1 | 43 | 2012 | Istanbul Olympiad | A07 King's Indian Attack |
| 25. A Moen vs O Ladva |
| 1-0 | 77 | 2012 | Istanbul Olympiad | B32 Sicilian |
Kibitzing
