| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 1. A Tadjerbashi vs S Thorgeirsson |
| ½-½ | 31 | 2004 | Politiken Cup | C09 French, Tarrasch, Open Variation, Main line |
| 2. S Thorgeirsson vs S Bjerke |
| 0-1 | 29 | 2004 | Politiken Cup | B90 Sicilian, Najdorf |
| 3. S Thorgeirsson vs A Bering |
| 0-1 | 25 | 2004 | Politiken Cup | B70 Sicilian, Dragon Variation |
| 4. S Thorgeirsson vs C Andersson |
| ½-½ | 59 | 2004 | Politiken Cup | C01 French, Exchange |
| 5. R R Hansen vs S Thorgeirsson |
| 1-0 | 59 | 2004 | Politiken Cup | D35 Queen's Gambit Declined |
| 6. S Thorgeirsson vs H E Jacobsen |
| ½-½ | 18 | 2004 | Politiken Cup | B54 Sicilian |
| 7. I Salgado Lopez vs S Thorgeirsson |
| 1-0 | 23 | 2005 | Wch U14 | C11 French |
| 8. M Kujovic vs S Thorgeirsson |
| 1-0 | 27 | 2006 | Reykjavik Open | C02 French, Advance |
| 9. S Thorgeirsson vs S Bjarnason |
| ½-½ | 50 | 2006 | Reykjavik Open | C42 Petrov Defense |
| 10. L Ptacnikova vs S Thorgeirsson |
| ½-½ | 81 | 2006 | Reykjavik Open | C05 French, Tarrasch |
| 11. S Thorgeirsson vs E Moskow |
| ½-½ | 48 | 2006 | Reykjavik Open | A07 King's Indian Attack |
| 12. S Thorgeirsson vs B Einarsson |
| 0-1 | 58 | 2006 | Reykjavik Open | A07 King's Indian Attack |
| 13. E Thorsteinsson vs S Thorgeirsson |
| ½-½ | 24 | 2006 | Reykjavik Open | A09 Reti Opening |
| 14. S Thorgeirsson vs H Baldursson |
| 0-1 | 74 | 2006 | Reykjavik Open | C25 Vienna |
| 15. S Bergsson vs S Thorgeirsson |
| 0-1 | 35 | 2006 | Reykjavik Open | C05 French, Tarrasch |
| 16. K Mouradian vs S Thorgeirsson |
| ½-½ | 36 | 2006 | Reykjavik Open | C12 French, McCutcheon |
| 17. S Thorgeirsson vs B Thorfinnsson |
| ½-½ | 54 | 2007 | Reykjavik op | C50 Giuoco Piano |
| 18. S Thorgeirsson vs H S Gretarsson |
| ½-½ | 47 | 2007 | Reykjavik op | B20 Sicilian |
| 19. S Thorgeirsson vs L Bregadze |
| 0-1 | 44 | 2007 | EU-ch U16 17th | B50 Sicilian |
| 20. S Thorgeirsson vs E Lie |
| 0-1 | 55 | 2008 | Reykjavik Open | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 21. S Sanchez Castillo vs S Thorgeirsson |
| ½-½ | 40 | 2008 | Reykjavik Open | B40 Sicilian |
| 22. S Thorgeirsson vs G Kjartansson |
| 0-1 | 43 | 2008 | Reykjavik Open | B18 Caro-Kann, Classical |
| 23. K Edvardsson vs S Thorgeirsson |
| 1-0 | 45 | 2008 | Reykjavik Open | E01 Catalan, Closed |
| 24. S Thorgeirsson vs C Andersson |
| 1-0 | 38 | 2008 | Reykjavik Open | C05 French, Tarrasch |
| 25. S Thorgeirsson vs A Thorsteinsson |
| 1-0 | 30 | 2008 | Reykjavik Open | B22 Sicilian, Alapin |
Kibitzing
