| Game |
| Result | Moves |
Year | Event/Locale | Opening |
| 51. S Thorhallsson vs G Kjartansson |
| 0-1 | 20 | 2021 | European Championship | C58 Two Knights |
| 52. S Thorhallsson vs Nicolas Kueng |
| 1-0 | 39 | 2021 | European Championship | E61 King's Indian |
| 53. Hjartarson vs S Thorhallsson |
| 1-0 | 53 | 2021 | European Championship | E73 King's Indian |
| 54. N Abasov vs S Thorhallsson |
| 1-0 | 38 | 2021 | European Club Cup | C01 French, Exchange |
| 55. D Gibicar vs S Thorhallsson |
| 0-1 | 51 | 2021 | European Club Cup | C19 French, Winawer, Advance |
| 56. J Sylvan vs S Thorhallsson |
| 0-1 | 63 | 2021 | European Club Cup | C11 French |
| 57. S Thorhallsson vs A Budima |
| 1-0 | 32 | 2021 | European Club Cup | B96 Sicilian, Najdorf |
| 58. M Payne vs S Thorhallsson |
| 0-1 | 66 | 2021 | European Club Cup | B23 Sicilian, Closed |
| 59. S Thorhallsson vs D George Samir |
| 0-1 | 51 | 2022 | Kvika Reykjavik Open | C55 Two Knights Defense |
| 60. J Schultze vs S Thorhallsson |
| 1-0 | 38 | 2022 | Kvika Reykjavik Open | E73 King's Indian |
| 61. Z Patel vs S Thorhallsson |
| 0-1 | 60 | 2022 | Kvika Reykjavik Open | D41 Queen's Gambit Declined, Semi-Tarrasch |
| 62. S Thorhallsson vs N Baecker |
| 0-1 | 27 | 2022 | Kvika Reykjavik Open | B25 Sicilian, Closed |
| 63. Sridhar Seshadri vs S Thorhallsson |
| 0-1 | 43 | 2022 | Kvika Reykjavik Open | B00 Uncommon King's Pawn Opening |
| 64. S Thorhallsson vs Kristjan Klasinc |
| 1-0 | 51 | 2022 | Kvika Reykjavik Open | B07 Pirc |
| 65. M P Bartelt vs S Thorhallsson |
| 0-1 | 47 | 2022 | Kvika Reykjavik Open | E64 King's Indian, Fianchetto, Yugoslav System |
| 66. S Thorhallsson vs B Briem |
| 0-1 | 26 | 2022 | Kvika Reykjavik Open | B52 Sicilian, Canal-Sokolsky (Rossolimo) Attack |
| 67. S Thorhallsson vs B Thorfinnsson |
| ½-½ | 38 | 2022 | ch-ISL | A90 Dutch |
| 68. T Thorhallsson vs S Thorhallsson |
| ½-½ | 31 | 2022 | ch-ISL | B90 Sicilian, Najdorf |
| 69. I Balog vs S Thorhallsson |
| 1-0 | 29 | 2024 | 39th ECC Open | D02 Queen's Pawn Game |
| 70. S Thorhallsson vs L H Bjarnason |
| 1-0 | 47 | 2025 | Icelandic Open 100yr | B10 Caro-Kann |
| 71. I Schitco vs S Thorhallsson |
| 1-0 | 40 | 2025 | Icelandic Open 100yr | A37 English, Symmetrical |
| 72. S Thorhallsson vs G F Briem |
| ½-½ | 66 | 2025 | Icelandic Open 100yr | B22 Sicilian, Alapin |
| 73. A Karason vs S Thorhallsson |
| ½-½ | 11 | 2025 | Icelandic Open 100yr | E11 Bogo-Indian Defense |
| 74. S Thorhallsson vs J Omarsson |
| 0-1 | 67 | 2025 | Icelandic Open 100yr | E81 King's Indian, Samisch |
| 75. B Bjornsson vs S Thorhallsson |
| 0-1 | 24 | 2025 | Icelandic Open 100yr | B08 Pirc, Classical |
Kibitzing
