| Jun 6, 2026 | Johannsson | 1–0 | Thorsteinsson | Skákþing Íslands - Áskorendaflokkur 2026 | Caro-Kann Defense: Exchange Variation | |
| Jun 5, 2026 | Bjornsson | * | Johannsson | Skákþing Íslands - Áskorendaflokkur 2026 | Sicilian Defense: Classical Variation | |
| Jun 1, 2026 | Johannsson | 0–1 | Jonsson | Skákþing Íslands - Áskorendaflokkur 2026 | Sicilian Defense: Kalashnikov Variation | |
| May 31, 2026 | Ernisson | 0–1 | Johannsson | Skákþing Íslands - Áskorendaflokkur 2026 | Sicilian Defense: Najdorf Variation | |
| Feb 1, 2026 | Einarsson | 1–0 | Johannsson | Skákþing Reykjavíkur 2026 | Catalan Opening: Open Defense, Classical Line | |
| Jan 28, 2026 | Johannsson | 1–0 | Hermannsson | Skákþing Reykjavíkur 2026 | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Jan 25, 2026 | Birkisson | 1–0 | Johannsson | Skákþing Reykjavíkur 2026 | Queen's Gambit Declined: Harrwitz Attack, Fianchetto Defense | |
| Jan 21, 2026 | Johannsson | ½–½ | Loftsson | Skákþing Reykjavíkur 2026 | Sicilian Defense: Richter-Rauzer Variation | |
| Jan 14, 2026 | Olafsson | ½–½ | Johannsson | Skákþing Reykjavíkur 2026 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 23, 2025 | Spinosi | 0–1 | Johannsson | Round 5: Spinosi, Aurelien - Johannsson, Markus Orri | Sicilian Defense: Classical Variation | |
| Mar 22, 2025 | Johannsson | 0–1 | Ganti | Round 4: Johannsson, Markus Orri - Ganti, Shriaansh | Sicilian Defense: Four Knights Variation | |
| Mar 22, 2025 | Barnes | 0–1 | Johannsson | Round 3: Barnes, Oliver - Johannsson, Markus Orri | Queen's Pawn Game: Zukertort Variation | |
| Mar 21, 2025 | Johannsson | 1–0 | Magi | Round 2: Johannsson, Markus Orri - Magi, Ramon | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Mar 21, 2025 | Marsden | 1–0 | Johannsson | Round 1: Marsden, Samuel - Johannsson, Markus Orri | Sicilian Defense: Closed, Traditional | |
| Aug 18, 2024 | Turcsanyi | 1–0 | Johannsson | EYCC 2024 Rapid O16 | Zukertort Opening | |
| Jun 1, 2024 | Heidarsson | 1–0 | Johannsson | Round 1: Heidarsson, Arnar Milutin - Johannsson, Markus Orri | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 17, 2024 | Johannsson | 0–1 | Saine | Reykjavik Open 2024 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 7, 2022 | Johannsson | ½–½ | Helgadottir | Kvika Reykjavik Open 2022 | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Apr 7, 2022 | Grose | ½–½ | Johannsson | Kvika Reykjavik Open 2022 | Petrov's Defense: Classical Attack | |
| Apr 6, 2022 | Jonsson | 1–0 | Johannsson | Kvika Reykjavik Open 2022 | Catalan Opening | |
| Sep 2, 2021 | Helgadottir | 1–0 | Johannsson | European Individual Chess Championship 2021 - Reykjavik Open | Nimzo-Indian Defense: Classical Variation | |
| Sep 1, 2021 | Johannsson | 0–1 | Jonsson | European Individual Chess Championship 2021 - Reykjavik Open | Caro-Kann Defense: Bronstein-Larsen Variation | |
| Aug 30, 2021 | Johannsson | 0–1 | Omarsson | European Individual Chess Championship 2021 - Reykjavik Open | Modern Defense | |
| Aug 29, 2021 | Johannsson | 0–1 | Gade | European Individual Chess Championship 2021 - Reykjavik Open | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 28, 2021 | Tummasarson | 1–0 | Johannsson | European Individual Chess Championship 2021 - Reykjavik Open | Petrov's Defense: Modern Attack, Symmetrical Variation | |
| Aug 27, 2021 | Johannsson | 0–1 | Hardarson | European Individual Chess Championship 2021 - Reykjavik Open | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Aug 26, 2021 | Juksta | 1–0 | Johannsson | European Individual Chess Championship 2021 - Reykjavik Open | Queen's Indian Defense: Classical Variation, Traditional Variation | |
