| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 26. N Grandelius vs S Thorgeirsson |
| 1-0 | 26 | 2008 | Reykjavik Open | A43 Old Benoni |
| 27. S Thorgeirsson vs S Narayanan |
| ½-½ | 68 | 2008 | Reykjavik Open | B22 Sicilian, Alapin |
| 28. S Thorgeirsson vs M Bojchev |
| 0-1 | 22 | 2008 | EU-ch U18 18th | A46 Queen's Pawn Game |
| 29. A Pavlidis vs S Thorgeirsson |
| 1-0 | 27 | 2008 | EU-ch U18 18th | D30 Queen's Gambit Declined |
| 30. S Kristjansson vs S Thorgeirsson |
| 0-1 | 44 | 2009 | Reykjavik Open | C12 French, McCutcheon |
| 31. S Thorgeirsson vs S Lund |
| ½-½ | 37 | 2009 | Reykjavik Open | C67 Ruy Lopez |
| 32. S Macak vs S Thorgeirsson |
| 1-0 | 29 | 2009 | Reykjavik Open | C02 French, Advance |
| 33. S Thorgeirsson vs J V Gunnarsson |
| ½-½ | 43 | 2009 | Reykjavik Open | B20 Sicilian |
| 34. S Thorgeirsson vs M Lucaroni |
| ½-½ | 28 | 2009 | Reykjavik Open | D02 Queen's Pawn Game |
| 35. M Hug vs S Thorgeirsson |
| 1-0 | 42 | 2009 | Reykjavik Open | A07 King's Indian Attack |
| 36. S Thorgeirsson vs G Thorhallsson |
| 0-1 | 49 | 2009 | Reykjavik Open | B22 Sicilian, Alapin |
| 37. H Brynjarsson vs S Thorgeirsson |
| 0-1 | 28 | 2009 | Reykjavik Open | A10 English |
| 38. S Thorgeirsson vs Ehlvest |
| 0-1 | 36 | 2010 | Reykjavik Open | C64 Ruy Lopez, Classical |
| 39. F Benediktsson vs S Thorgeirsson |
| ½-½ | 51 | 2010 | Reykjavik Open | D13 Queen's Gambit Declined Slav, Exchange Variation |
| 40. S Thorgeirsson vs H Brynjarsson |
| ½-½ | 57 | 2010 | Reykjavik Open | D05 Queen's Pawn Game |
| 41. G Kjartansson vs S Thorgeirsson |
| 1-0 | 42 | 2010 | Reykjavik Open | B01 Scandinavian |
| 42. S Sigurdsson vs S Thorgeirsson |
| 0-1 | 42 | 2010 | Reykjavik Open | B40 Sicilian |
| 43. S Thorgeirsson vs E Thorsteinsson |
| 1-0 | 26 | 2010 | Reykjavik Open | C10 French |
| 44. J Fivelstad vs S Thorgeirsson |
| 0-1 | 51 | 2010 | Reykjavik Open | D30 Queen's Gambit Declined |
| 45. S Thorgeirsson vs D Arngrimsson |
| ½-½ | 37 | 2010 | Reykjavik Open | C69 Ruy Lopez, Exchange, Gligoric Variation |
| 46. T Thorhallsson vs S Thorgeirsson |
| ½-½ | 17 | 2010 | Reykjavik Open | C11 French |
| 47. S Thorgeirsson vs H Hauksdottir |
| 1-0 | 32 | 2011 | Reykjavik Open | D11 Queen's Gambit Declined Slav |
| 48. S Thorgeirsson vs S Grover |
| 0-1 | 47 | 2011 | Reykjavik Open | E04 Catalan, Open, 5.Nf3 |
| 49. E Reppen vs S Thorgeirsson |
| 0-1 | 56 | 2011 | Reykjavik Open | C11 French |
| 50. B Thorfinnsson vs S Thorgeirsson |
| ½-½ | 35 | 2011 | Reykjavik Open | A22 English |
Kibitzing
