| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. S Geirnaert vs J Redpath |
| ½-½ | 29 |
2000 |
Glorney and Faber Cup | C02 French, Advance |
| 2. T Willemze vs S Geirnaert |
| 1-0 | 25 |
2000 |
Glorney and Faber Cup | A01 Nimzovich-Larsen Attack |
| 3. S Geirnaert vs S Buckley |
| ½-½ | 46 |
2000 |
Glorney and Faber Cup | B24 Sicilian, Closed |
| 4. R S Jones vs S Geirnaert |
| ½-½ | 27 |
2000 |
Glorney and Faber Cup | C36 King's Gambit Accepted, Abbazia Defense |
| 5. S Collins vs S Geirnaert |
| ½-½ | 65 |
2000 |
Glorney and Faber Cup | C70 Ruy Lopez |
| 6. S Geirnaert vs F Steenbekkers |
| ½-½ | 54 |
2001 |
HZ Open | C02 French, Advance |
| 7. N Pert vs S Geirnaert |
| ½-½ | 45 |
2001 |
WJun | E12 Queen's Indian |
| 8. W Maes vs S Geirnaert |
| ½-½ | 38 |
2001 |
HZ Open | C33 King's Gambit Accepted |
| 9. R Janssen vs S Geirnaert |
| 1-0 | 26 |
2001 |
HZ Open | A14 English |
| 10. S Geirnaert vs Rob Geukes |
| 1-0 | 26 |
2001 |
HZ Open | B93 Sicilian, Najdorf, 6.f4 |
| 11. S Geirnaert vs M Smits |
| 1-0 | 48 |
2001 |
HZ Open | C50 Giuoco Piano |
| 12. Bilal Belhach vs S Geirnaert |
| 0-1 | 33 |
2001 |
HZ Open | E00 Queen's Pawn Game |
| 13. J Heppekausen vs S Geirnaert |
| 0-1 | 59 |
2001 |
HZ Open | C53 Giuoco Piano |
| 14. S Geirnaert vs Nijboer |
| 0-1 | 35 |
2001 |
HZ Open | B56 Sicilian |
| 15. A Neiksans vs S Geirnaert |
| 1-0 | 25 |
2001 |
WJun | C50 Giuoco Piano |
| 16. S Geirnaert vs M Paragua |
| 0-1 | 37 |
2002 |
41st World Junior Championships | B93 Sicilian, Najdorf, 6.f4 |
| 17. S Geirnaert vs E Inarkiev |
| ½-½ | 74 |
2002 |
41st World Junior Championships | B06 Robatsch |
| 18. J Jirka vs S Geirnaert |
| 1-0 | 30 |
2003 |
World Junior Championships | D02 Queen's Pawn Game |
| 19. S Geirnaert vs S Azarov |
| ½-½ | 54 |
2003 |
World Junior Championships | C50 Giuoco Piano |
| 20. S Geirnaert vs G Rohit |
| 0-1 | 55 |
2003 |
World Junior Championships | B56 Sicilian |
| 21. D Mastrovasilis vs S Geirnaert |
| 1-0 | 49 |
2003 |
World Junior Championships | A15 English |
| 22. Kasimdzhanov vs S Geirnaert |
| 1-0 | 35 |
2003 |
Vlissingen HZ op | E18 Queen's Indian, Old Main line, 7.Nc3 |
| 23. S Geirnaert vs V Gashimov |
| ½-½ | 46 |
2003 |
World Junior Championships | B76 Sicilian, Dragon, Yugoslav Attack |
| 24. C Hanley vs S Geirnaert |
| 1-0 | 23 |
2003 |
World Junior Championships | C80 Ruy Lopez, Open |
| 25. S Erenburg vs S Geirnaert |
 | 0-1 | 43 |
2003 |
World Junior Championships | B01 Scandinavian |