| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. M Bosboom vs C Van Oosterom |
| 1-0 | 22 |
2005 |
Amsterdam Chess Tournament | A20 English |
| 2. R Rietveld vs C Van Oosterom |
| 0-1 | 53 |
2006 |
Harmonietoernooi | B90 Sicilian, Najdorf |
| 3. M De Jong vs C Van Oosterom |
| ½-½ | 64 |
2006 |
Amsterdam Chess Tournament | B91 Sicilian, Najdorf, Zagreb (Fianchetto) Variation |
| 4. K Uwe Schiffer vs C Van Oosterom |
| 0-1 | 42 |
2006 |
Harmonietoernooi | A80 Dutch |
| 5. M Overeem vs C Van Oosterom |
| 0-1 | 43 |
2006 |
Amsterdam Chess Tournament | A30 English, Symmetrical |
| 6. C Van Oosterom vs Y Jellema |
| 1-0 | 43 |
2006 |
Harmonietoernooi | B14 Caro-Kann, Panov-Botvinnik Attack |
| 7. C Van Oosterom vs W Van de Fliert |
| 0-1 | 56 |
2006 |
Amsterdam Chess Tournament | B22 Sicilian, Alapin |
| 8. C Van Oosterom vs D Brandenburg |
| ½-½ | 39 |
2006 |
Harmonietoernooi | C11 French |
| 9. F Kroeze vs C Van Oosterom |
| ½-½ | 47 |
2006 |
Halve Finale NK 2007 | A81 Dutch |
| 10. C Van Oosterom vs T Timman |
 | 1-0 | 33 |
2006 |
Amsterdam Chess Tournament | B22 Sicilian, Alapin |
| 11. J Hummel vs C Van Oosterom |
| 0-1 | 58 |
2006 |
Harmonietoernooi | A80 Dutch |
| 12. J Vogel vs C Van Oosterom |
| 1-0 | 43 |
2006 |
Amsterdam Chess Tournament | A04 Reti Opening |
| 13. H Hoeksema vs C Van Oosterom |
| 0-1 | 38 |
2006 |
Harmonietoernooi | A85 Dutch, with c4 & Nc3 |
| 14. C Van Oosterom vs F Kroeze |
| 0-1 | 32 |
2006 |
Halve Finale NK 2007 | B13 Caro-Kann, Exchange |
| 15. O Van Veen vs C Van Oosterom |
| 1-0 | 22 |
2006 |
Amsterdam Chess Tournament | B90 Sicilian, Najdorf |
| 16. J Daudzvardis vs C Van Oosterom |
| ½-½ | 38 |
2006 |
Harmonietoernooi | A10 English |
| 17. C De Saegher vs C Van Oosterom |
 | ½-½ | 99 |
2006 |
Amsterdam Chess Tournament | A81 Dutch |
| 18. C Van Oosterom vs J L Hanley |
| 1-0 | 37 |
2006 |
Harmonietoernooi | B22 Sicilian, Alapin |
| 19. C Van Oosterom vs A J Keessen |
| ½-½ | 59 |
2006 |
Amsterdam Chess Tournament | B22 Sicilian, Alapin |
| 20. C Van Oosterom vs M De Jong |
| 1-0 | 37 |
2006 |
Harmonietoernooi | C16 French, Winawer |
| 21. C Van Oosterom vs R D Miedema |
| 0-1 | 34 |
2006 |
Amsterdam Chess Tournament | C18 French, Winawer |
| 22. T Kampman vs C Van Oosterom |
| 0-1 | 30 |
2007 |
NK Jeugd A | B23 Sicilian, Closed |
| 23. R Ris vs C Van Oosterom |
| ½-½ | 12 |
2007 |
NK Jeugd A | B90 Sicilian, Najdorf |
| 24. C Van Oosterom vs Y Gorter |
| ½-½ | 49 |
2007 |
NK Jeugd A | C91 Ruy Lopez, Closed |
| 25. A Bitalzadeh vs C Van Oosterom |
| 1-0 | 41 |
2007 |
NK Jeugd A | A07 King's Indian Attack |