| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. A Daniels vs O Van Veen |
| ½-½ | 30 |
2000 |
HZ Open | C29 Vienna Gambit |
| 2. O Van Veen vs J Van Kempen |
| 1-0 | 22 |
2000 |
Hengelo jr open U20 | B32 Sicilian |
| 3. O Van Veen vs F Dieperink |
 | 1-0 | 15 |
2000 |
HZ Open | C44 King's Pawn Game |
| 4. O Van Veen vs L Morrison |
| 0-1 | 33 |
2000 |
Hengelo jr open U20 | B21 Sicilian, 2.f4 and 2.d4 |
| 5. I Sokolov vs O Van Veen |
| 1-0 | 22 |
2000 |
HZ Open | D25 Queen's Gambit Accepted |
| 6. O Van Veen vs A Van Weersel |
| 0-1 | 37 |
2000 |
Hengelo jr open U20 | C44 King's Pawn Game |
| 7. Vincent Groenhuis vs O Van Veen |
 | 0-1 | 43 |
2000 |
Hengelo jr open U20 | C44 King's Pawn Game |
| 8. O Van Veen vs V Ikonnikov |
| 0-1 | 26 |
2001 |
HZ Open | B21 Sicilian, 2.f4 and 2.d4 |
| 9. O Van Veen vs J Delemarre |
| 0-1 | 25 |
2001 |
HZ Open | D86 Grunfeld, Exchange |
| 10. De Zwart,Johan vs O Van Veen |
| 0-1 | 34 |
2001 |
HZ Open | C84 Ruy Lopez, Closed |
| 11. P Dubbeld vs O Van Veen |
| 0-1 | 21 |
2001 |
HZ Open | C45 Scotch Game |
| 12. O Van Veen vs J Versmissen |
| 1-0 | 40 |
2001 |
HZ Open | B01 Scandinavian |
| 13. O Van Veen vs R Van Gemert |
| 1-0 | 38 |
2001 |
HZ Open | B07 Pirc |
| 14. O Van Veen vs Stellwagen |
| 0-1 | 26 |
2001 |
NED-ch U20 | B21 Sicilian, 2.f4 and 2.d4 |
| 15. O Van Veen vs F Snijders |
| 1-0 | 53 |
2001 |
HZ Open | C46 Three Knights |
| 16. W Punt vs O Van Veen |
| ½-½ | 21 |
2001 |
HZ Open | C47 Four Knights |
| 17. O Van Veen vs Bas Kommer |
| ½-½ | 35 |
2001 |
NED-ch U20 | B21 Sicilian, 2.f4 and 2.d4 |
| 18. K Leenhouts vs O Van Veen |
| 1-0 | 44 |
2001 |
HZ Open | A04 Reti Opening |
| 19. R Koster vs O Van Veen |
| 0-1 | 31 |
2001 |
NED-ch U20 | A13 English |
| 20. A Bezemer vs O Van Veen |
| 1-0 | 26 |
2006 |
Amsterdam Chess Tournament | C78 Ruy Lopez |
| 21. S De Boer vs O Van Veen |
| 1-0 | 34 |
2006 |
Amsterdam Chess Tournament | C78 Ruy Lopez |
| 22. O Van Veen vs R Pruijssers |
 | 0-1 | 32 |
2006 |
Amsterdam Chess Tournament | C55 Two Knights Defense |
| 23. O Van Veen vs L Van Beek |
| ½-½ | 91 |
2006 |
Amsterdam Chess Tournament | B81 Sicilian, Scheveningen, Keres Attack |
| 24. O Van Veen vs A Blees |
| ½-½ | 7 |
2006 |
Amsterdam Chess Tournament | A04 Reti Opening |
| 25. O Van Veen vs C Van Oosterom |
| 1-0 | 22 |
2006 |
Amsterdam Chess Tournament | B90 Sicilian, Najdorf |