| Apr 28, 2026 | Gislason | 0–1 | Kazhgaleyev | Round 9: Gislason, Gudmundur - Kazhgaleyev, Murtas | Indian Defense: Wade-Tartakower Defense | |
| Apr 26, 2026 | Gislason | 0–1 | Ledger | Round 7: Gislason, Gudmundur - Ledger, Andrew J | English Opening: King's English Variation | |
| Apr 25, 2026 | Adams | 1–0 | Gislason | Round 6: Adams, Michael - Gislason, Gudmundur | Sicilian Defense: Taimanov Variation | |
| Apr 23, 2026 | Gislason | 1–0 | Agdestein | Round 5: Gislason, Gudmundur - Agdestein, Simen | Queen's Gambit Declined | |
| Mar 8, 2026 | Gislason | ½–½ | Briem | Icelandic team chess championship premier league | King's Indian Attack, with e6 | |
| Mar 7, 2026 | Arnason | 1–0 | Gislason | Icelandic team chess championship premier league | Sicilian Defense: Kan Variation, Modern Variation | |
| Mar 7, 2026 | Thorarinsson | ½–½ | Gislason | Icelandic team chess championship premier league | King's Indian Defense: Orthodox Variation | |
| Mar 6, 2026 | Gislason | ½–½ | Johannesson | Icelandic team chess championship premier league | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| Mar 5, 2026 | Gislason | 1–0 | Prudnikov | Icelandic team chess championship premier league | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Dec 4, 2025 | Gislason | 1–0 | Arngrimsson | Icelandic team chess championship premier league | English Opening: Caro-Kann Defensive System | |
| Nov 16, 2025 | Gislason | 1–0 | Birkisson | Icelandic team chess championship premier league | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Nov 15, 2025 | Gislason | 1–0 | Omarsson | Icelandic team chess championship premier league | Zukertort Opening: Nimzo-Larsen Variation | |
| Nov 15, 2025 | Sigurjonsson | 0–1 | Gislason | Icelandic team chess championship premier league | Sicilian Defense: Smith-Morra Gambit Accepted, Scheveningen Formation | |
| Nov 14, 2025 | Johannesson | ½–½ | Gislason | Icelandic team chess championship premier league | Sicilian Defense: Smith-Morra Gambit | |
| Apr 15, 2025 | Zierk | 1–0 | Gislason | Reykjavik Open 2025 | Modern Defense: Standard Line | |
| Apr 14, 2025 | Gislason | ½–½ | Larkin | Reykjavik Open 2025 | Yusupov-Rubinstein System | |
| Apr 13, 2025 | Gislason | 0–1 | Lu | Reykjavik Open 2025 | Queen's Pawn Game: Symmetrical Variation | |
| Apr 13, 2025 | Saine | 0–1 | Gislason | Reykjavik Open 2025 | Modern Defense: Standard Line | |
| Apr 12, 2025 | James | 0–1 | Gislason | Reykjavik Open 2025 | King's Indian Attack: Sicilian Variation | |
| Apr 10, 2025 | Royal | 1–0 | Gislason | Reykjavik Open 2025 | King's Indian Defense: Orthodox Variation, Bayonet Attack, Sokolov's Line | |
| Mar 16, 2024 | Gislason | 0–1 | Steingrimsson | Reykjavik Open 2024 | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | |
| Mar 19, 2023 | Gislason | 1–0 | Ragnarsson | Icelandic Team Championship | French Defense: King's Indian Attack | |
| Mar 18, 2023 | Pakleza | 1–0 | Gislason | Icelandic Team Championship | Indian Defense: King's Indian Variation, Fianchetto Variation | |
| Mar 18, 2023 | Jones | 1–0 | Gislason | Icelandic Team Championship | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Mar 17, 2023 | Gunnarsson | 1–0 | Gislason | Icelandic Team Championship | Sicilian Defense: French Variation | |
| Oct 16, 2022 | Gislason | 0–1 | Ragnarsson | Icelandic Team Championship | Neo-Grünfeld Defense: Classical Variation, Modern Defense | |
| Oct 15, 2022 | Gislason | ½–½ | Hjartarson | Icelandic Team Championship | Indian Defense: Przepiorka Variation | |
| Oct 15, 2022 | Gretarsson | 1–0 | Gislason | Icelandic Team Championship | King's Indian Defense: Makogonov Variation | |
| Oct 14, 2022 | Gislason | 0–1 | Gunnarsson | Icelandic Team Championship | Indian Defense: Przepiorka Variation | |
| — | Gislason | ½–½ | Gunnarsson | Icelandic Team Championship | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| — | Gislason | ½–½ | Thorfinnsson | Icelandic Team Championship | English Opening: Agincourt Defense | |
| — | Domalchuk-Jonasson | 1–0 | Gislason | Icelandic Team Championship | English Opening: Great Snake Variation | |
| — | Nagy | 1–0 | Gislason | Icelandic Team Championship | King's Indian Defense: Fianchetto Variation, Debrecen Defense | |
| — | Laurusas | 1–0 | Gislason | Icelandic Team Championship | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
