| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. O Sepp vs O Ladva |
| 0-1 | 39 |
2010 |
11th Puhajarve Rapid | A07 King's Indian Attack |
| 2. O Ladva vs Korchnoi |
| 1-0 | 42 |
2010 |
11th Puhajarve Rapid | C11 French |
| 3. O Ladva vs K Shiven |
| ½-½ | 85 |
2010 |
WYCC Open U14 | B63 Sicilian, Richter-Rauzer Attack |
| 4. O Ladva vs Ehlvest |
| 1-0 | 55 |
2010 |
11th Puhajarve Rapid | B06 Robatsch |
| 5. Kanep vs O Ladva |
| 1-0 | 26 |
2010 |
11th Puhajarve Rapid | D14 Queen's Gambit Declined Slav, Exchange Variation |
| 6. A Volodin vs O Ladva |
| 1-0 | 55 |
2010 |
11th Puhajarve Rapid | D12 Queen's Gambit Declined Slav |
| 7. T Nyback vs O Ladva |
| 1-0 | 31 |
2010 |
11th Puhajarve Rapid | D12 Queen's Gambit Declined Slav |
| 8. O Ladva vs Kulaots |
 | 1-0 | 30 |
2010 |
11th Puhajarve Rapid | B42 Sicilian, Kan |
| 9. V Kovalev vs O Ladva |
| 1-0 | 34 |
2011 |
European Rapid Championship | B45 Sicilian, Taimanov |
| 10. M Kravtsiv vs O Ladva |
| 1-0 | 54 |
2011 |
European Rapid Championship | B45 Sicilian, Taimanov |
| 11. A Zhigalko vs O Ladva |
| 1-0 | 46 |
2011 |
European Rapid Championship | B45 Sicilian, Taimanov |
| 12. O Ladva vs D Fraczek |
| 1-0 | 40 |
2011 |
European Rapid Championship | C11 French |
| 13. O Ladva vs E Podolchenko |
| 0-1 | 31 |
2011 |
European Rapid Championship | C11 French |
| 14. M Pacheco vs O Ladva |
| ½-½ | 46 |
2012 |
Chess Olympiad | D56 Queen's Gambit Declined |
| 15. O Ladva vs T Baron |
| 0-1 | 32 |
2012 |
World Junior Championship | B32 Sicilian |
| 16. R Montanez Nazario vs O Ladva |
| 0-1 | 43 |
2012 |
Chess Olympiad | A07 King's Indian Attack |
| 17. B Gaealafshwe vs O Ladva |
| 0-1 | 47 |
2012 |
Chess Olympiad | D55 Queen's Gambit Declined |
| 18. O Ladva vs A Neiksans |
| 0-1 | 51 |
2012 |
12th MetLife Amplico European (Rapid) | B42 Sicilian, Kan |
| 19. O Ladva vs Deergha Raj Joshi |
| 1-0 | 50 |
2012 |
Chess Olympiad | B14 Caro-Kann, Panov-Botvinnik Attack |
| 20. K Wageih vs O Ladva |
| 1-0 | 40 |
2012 |
World Junior Championship | A46 Queen's Pawn Game |
| 21. J Cambando vs O Ladva |
| 0-1 | 56 |
2012 |
Chess Olympiad | D02 Queen's Pawn Game |
| 22. L Sanguinetti vs O Ladva |
| 1-0 | 51 |
2012 |
Chess Olympiad | C01 French, Exchange |
| 23. S De Filomeno vs O Ladva |
| 1-0 | 51 |
2012 |
World Junior Championship | B32 Sicilian |
| 24. O Ladva vs E Can |
| 0-1 | 59 |
2012 |
Chess Olympiad | B70 Sicilian, Dragon Variation |
| 25. O Ladva vs J Molina |
| 1-0 | 43 |
2012 |
Chess Olympiad | B14 Caro-Kann, Panov-Botvinnik Attack |