| Jun 7, 2026 | Leosson | 0–1 | Omarsson | Skákþing Íslands - Áskorendaflokkur 2026 | Queen's Gambit Accepted: Normal Variation | |
| Jun 3, 2026 | Leosson | 0–1 | Karlsson | Skákþing Íslands - Áskorendaflokkur 2026 | Queen's Gambit Declined: Cambridge Springs Defense, Bogoljubow Variation | |
| Jun 2, 2026 | Bjornsson | 0–1 | Leosson | Skákþing Íslands - Áskorendaflokkur 2026 | French Defense: Tarrasch Variation, Open System, Süchting Line | |
| Jun 1, 2026 | Leosson | 0–1 | Davidsson | Skákþing Íslands - Áskorendaflokkur 2026 | Queen's Gambit Declined: Semi-Slav, Abrahams Variation | |
| May 31, 2026 | Leosson | 1–0 | Briem | Skákþing Íslands - Áskorendaflokkur 2026 | Sicilian Defense: Closed, Botvinnik Defense, with Nge2 | |
| May 10, 2026 | Leosson | ½–½ | Halldorsson | Landsmótið í skólaskák 2026 | Dutch Defense: Hopton Attack | |
| May 10, 2026 | Tomasdottir | 0–1 | Leosson | Landsmótið í skólaskák 2026 | Queen's Gambit Declined: Three Knights Variation | |
| May 9, 2026 | Leosson | 0–1 | Ernisson | Landsmótið í skólaskák 2026 | Dutch Defense: Hopton Attack | |
| May 9, 2026 | Jonsdottir | 0–1 | Leosson | Landsmótið í skólaskák 2026 | French Defense: Exchange Variation | |
| May 9, 2026 | Leosson | 1–0 | Dadason | Landsmótið í skólaskák 2026 | Queen's Gambit Declined: Charousek Variation | |
| May 9, 2026 | Valsson | 0–1 | Leosson | Landsmótið í skólaskák 2026 | Sicilian Defense: Nimzowitsch Variation, Advance Variation | |
| Feb 15, 2026 | Leosson | 1–0 | Dahlin | Nordisk Mesterskab gruppe D | Caro-Kann Defense: Endgame Variation | |
| Feb 14, 2026 | Mikkelsen | 1–0 | Leosson | Nordisk Mesterskab gruppe D | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Feb 13, 2026 | Leosson | ½–½ | Blikom | Nordisk Mesterskab gruppe D | Sicilian Defense: Closed | |
| Feb 13, 2026 | Maurstad | 0–1 | Leosson | Nordisk Mesterskab gruppe D | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Feb 12, 2026 | Leosson | 1–0 | Nyberg | Nordisk Mesterskab gruppe D | Grünfeld Defense: Three Knights Variation, Hungarian Attack | |
| Feb 8, 2026 | Zhang | 1–0 | Leosson | Nordisk Mesterskab gruppe D | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Feb 6, 2026 | Leosson | ½–½ | Sigurdarson | Skákþing Reykjavíkur 2026 | Slav Defense: Exchange Variation | |
| Feb 1, 2026 | Loftsson | 1–0 | Leosson | Skákþing Reykjavíkur 2026 | King's Indian Attack | |
| Jan 21, 2026 | Briem | 1–0 | Leosson | Skákþing Reykjavíkur 2026 | Queen's Gambit Declined | |
| Jan 18, 2026 | Leosson | 0–1 | Heidarsson | Skákþing Reykjavíkur 2026 | Queen's Indian Defense: Kasparov-Petrosian Variation | |
| Jan 14, 2026 | Leosson | 1–0 | Fridjonsson | Skákþing Reykjavíkur 2026 | Slav Defense: Exchange Variation | |
| Sep 7, 2025 | Leosson | 1–0 | Grettisson | Haustmót TR 2025 - C flokkur | Benko Gambit Accepted: Fully Accepted Variation | |
| Sep 7, 2025 | Ernisson | 0–1 | Leosson | Haustmot TR 2025 | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Sep 7, 2025 | Leosson | * | Sigurdsson | Haustmot TR 2025 | Queen's Gambit Declined: Marshall Defense | |
| Sep 7, 2025 | Leosson | ½–½ | Eiriksson | Haustmot TR 2025 | Queen's Gambit Declined | |
| Sep 7, 2025 | Hallmundarson | ½–½ | Leosson | Haustmot TR 2025 | Zukertort Opening: Dutch Variation | |
| Sep 7, 2025 | Leosson | 1–0 | Geirsson | Haustmot TR 2025 | Semi-Slav Defense: Anti-Moscow Gambit | |
| Sep 7, 2025 | Leosson | 0–1 | Eliasson | Haustmot TR 2025 | Old Indian Defense: Czech Variation, with Nc3 | |
| Sep 7, 2025 | Fridthjofsdottir | 0–1 | Leosson | Haustmót TR 2025 - C flokkur | French Defense: King's Indian Attack | |
| — | Leosson | 0–1 | Bro Jacobsen | Nordic Youth Chess Championship | Queen's Gambit Declined | |
| — | Leosson | 1–0 | Shi | Nordic Youth Chess Championship | Queen's Gambit Declined: Tartakower Defense, Makogonov Exchange Variation | |
| — | Leosson | ½–½ | Mashhadi Aghajan | Nordic Youth Chess Championship | Semi-Slav Defense | |
| — | Torres | 0–1 | Leosson | Nordic Youth Chess Championship | French Defense: Classical Variation, Pollock Variation | |
| — | Elnegaard | 0–1 | Leosson | Nordic Youth Chess Championship | French Defense: Classical Variation, Steinitz Variation | |
| — | Mortensen | 1–0 | Leosson | Nordic Youth Chess Championship | French Defense: Rubinstein Variation, Blackburne Defense | |
