| Mar 25, 2026 | Kadovic | 0–1 | Brynjarsson | Reykjavik Open 2026 | Catalan Opening | |
| Feb 1, 2026 | Ingvason | 1–0 | Brynjarsson | Skákþing Reykjavíkur 2026 | Benoni Defense: Fianchetto Variation | |
| Jan 25, 2026 | Hermannsson | ½–½ | Brynjarsson | Skákþing Reykjavíkur 2026 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Main Line | |
| Jan 14, 2026 | Heidarsson | 1–0 | Brynjarsson | Skákþing Reykjavíkur 2026 | Nimzo-Indian Defense | |
| Jan 11, 2026 | Brynjarsson | ½–½ | Ragnarsson | Skákþing Reykjavíkur 2026 | Scandinavian Defense: Gubinsky-Melts Defense | |
| Jun 4, 2024 | Brynjarsson | 0–1 | Jonsson | Round 4: Brynjarsson, Orvar Holm - Jonsson, Gauti Pall | Sicilian Defense: Kalashnikov Variation | |
| Mar 31, 2023 | Brynjarsson | * | Laddha | Reykjavik Open | ? | |
| Apr 7, 2022 | Brynjarsson | 0–1 | Finnbogadottir | Kvika Reykjavik Open 2022 | Sicilian Defense: Alapin Variation | |
| Apr 7, 2022 | Zamvar | 0–1 | Brynjarsson | Kvika Reykjavik Open 2022 | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Apr 6, 2022 | Skahlberg Bjerknes-Lima De Fa | 1–0 | Brynjarsson | Kvika Reykjavik Open 2022 | English Opening: Neo-Catalan | |
| Sep 2, 2021 | Saemundarson | 0–1 | Brynjarsson | European Individual Chess Championship 2021 - Reykjavik Open | French Defense: Exchange Variation | |
| Sep 1, 2021 | Brynjarsson | 0–1 | Helgadottir | European Individual Chess Championship 2021 - Reykjavik Open | Bogo-Indian Defense: Nimzowitsch Variation | |
| Aug 30, 2021 | Briem | 1–0 | Brynjarsson | European Individual Chess Championship 2021 - Reykjavik Open | Queen's Gambit Declined: Modern Variation | |
| Aug 29, 2021 | Brynjarsson | 0–1 | Kjartansson | European Individual Chess Championship 2021 - Reykjavik Open | Queen's Gambit Declined: Vienna Variation | |
| Aug 28, 2021 | Jonsson | 1–0 | Brynjarsson | European Individual Chess Championship 2021 - Reykjavik Open | Queen's Gambit Declined | |
| Aug 27, 2021 | Birkisson | 1–0 | Brynjarsson | European Individual Chess Championship 2021 - Reykjavik Open | Neo-Grünfeld Defense: Classical Variation, Modern Defense | |
| Aug 26, 2021 | Brynjarsson | 0–1 | Mazur | European Individual Chess Championship 2021 - Reykjavik Open | King's Indian Defense: Normal Variation | |
| — | Brynjarsson | 1–0 | Lutzen | Nordic Youth Chess Championship | Italian Game: Evans Gambit Declined | |
| — | Brynjarsson | 0–1 | Sivaparan | Nordic Youth Chess Championship | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| — | Brynjarsson | 1–0 | Jakobsen | Nordic Youth Chess Championship | French Defense: Advance Variation, Milner-Barry Gambit | |
| — | Bekmukhanov | 1–0 | Brynjarsson | Nordic Youth Chess Championship | Sicilian Defense: Kalashnikov Variation | |
| — | B. Berglindardottir | 0–1 | Brynjarsson | Nordic Youth Chess Championship | Nimzo-Indian Defense: Classical Variation | |
| — | Tharmarai | 1–0 | Brynjarsson | Nordic Youth Chess Championship | Sicilian Defense: Kalashnikov Variation | |
