| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. G Thorhallsson vs B Jonsson |
| 1-0 | 40 | 1994 | Akureyri | B84 Sicilian, Scheveningen |
| 52. H Olafsson vs G Thorhallsson |
| 1-0 | 27 | 1994 | Akureyri | E21 Nimzo-Indian, Three Knights |
| 53. G Thorhallsson vs Hjartarson |
| ½-½ | 83 | 1994 | Akureyri | B41 Sicilian, Kan |
| 54. O Kristjansson vs G Thorhallsson |
| ½-½ | 58 | 1994 | Akureyri | C43 Petrov, Modern Attack |
| 55. K Berg vs G Thorhallsson |
| 1-0 | 28 | 1994 | Akureyri | D01 Richter-Veresov Attack |
| 56. G Thorhallsson vs T Thorhallsson |
| ½-½ | 33 | 1997 | ISL-ch | B73 Sicilian, Dragon, Classical |
| 57. B Thorfinnsson vs G Thorhallsson |
| 1-0 | 37 | 1997 | ISL-ch | A84 Dutch |
| 58. B Halldorsson vs G Thorhallsson |
| ½-½ | 63 | 2000 | Tch-ISL | E20 Nimzo-Indian |
| 59. G Thorhallsson vs H Stefansson |
| 0-1 | 43 | 2001 | Johann Thorir Jonsson Memorial | B48 Sicilian, Taimanov Variation |
| 60. P Thorarinsson vs G Thorhallsson |
| 1-0 | 39 | 2001 | Johann Thorir Jonsson Memorial | D35 Queen's Gambit Declined |
| 61. G Thorhallsson vs G Palmason |
| ½-½ | 48 | 2001 | Johann Thorir Jonsson Memorial | B42 Sicilian, Kan |
| 62. T Bjornsson vs G Thorhallsson |
| 1-0 | 30 | 2001 | Johann Thorir Jonsson Memorial | B40 Sicilian |
| 63. G Thorhallsson vs H Baldursson |
| 1-0 | 31 | 2001 | Johann Thorir Jonsson Memorial | B08 Pirc, Classical |
| 64. J Halldorsson vs G Thorhallsson |
| ½-½ | 41 | 2001 | Johann Thorir Jonsson Memorial | E15 Queen's Indian |
| 65. G Thorhallsson vs G Valgardsson |
| 1-0 | 53 | 2001 | Johann Thorir Jonsson Memorial | C18 French, Winawer |
| 66. D Arngrimsson vs G Thorhallsson |
| 0-1 | 73 | 2001 | Johann Thorir Jonsson Memorial | B32 Sicilian |
| 67. G Thorhallsson vs Nyback |
| 0-1 | 54 | 2001 | Johann Thorir Jonsson Memorial | B32 Sicilian |
| 68. A Karason vs G Thorhallsson |
| ½-½ | 12 | 2001 | Johann Thorir Jonsson Memorial | A06 Reti Opening |
| 69. I Nataf vs G Thorhallsson |
| 0-1 | 53 | 2003 | Reykjavik Edda rapid | B60 Sicilian, Richter-Rauzer |
| 70. G Thorhallsson vs J Arnason |
| 0-1 | 33 | 2004 | Icelandic Team Championship | B28 Sicilian, O'Kelly Variation |
| 71. B Thorfinnsson vs G Thorhallsson |
| 1-0 | 32 | 2004 | ISL-chT 0405 | E12 Queen's Indian |
| 72. G Thorhallsson vs R Akesson |
| 0-1 | 48 | 2006 | Reykjavik Open | B40 Sicilian |
| 73. Timman vs G Thorhallsson |
| 1-0 | 42 | 2006 | Reykjavik Open | B30 Sicilian |
| 74. G Thorhallsson vs D Trifunovic |
| 1-0 | 39 | 2006 | Reykjavik Open | C61 Ruy Lopez, Bird's Defense |
| 75. I Gaponenko vs G Thorhallsson |
| 1-0 | 60 | 2006 | Reykjavik Open | B28 Sicilian, O'Kelly Variation |
Kibitzing
