| Jun 10, 2026 | Danielsen | 0–1 | Lacasa Diaz | Round 9: Danielsen, Henrik - Lacasa Diaz, Josep Anton | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Jun 9, 2026 | Hjartarson | 0–1 | Danielsen | Round 8: Hjartarson, Johann - Danielsen, Henrik | Queen's Indian Defense: Anti-Queen's Indian System | |
| Jun 8, 2026 | Mrva | 1–0 | Danielsen | Round 7: Mrva, Martin - Danielsen, Henrik | Pirc Defense | |
| Jun 6, 2026 | Danielsen | 1–0 | Lauber | Round 5: Danielsen, Henrik - Lauber, Arnd | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 5, 2026 | Gormally | ½–½ | Danielsen | Round 4: Gormally, Daniel W - Danielsen, Henrik | Philidor Defense: Lion Variation | |
| Jun 4, 2026 | Danielsen | 1–0 | Collutiis | Round 3: Danielsen, Henrik - Collutiis, Duilio | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Jun 3, 2026 | Melikhov | 0–1 | Danielsen | Round 2: Melikhov, Evgeny V. - Danielsen, Henrik | Pirc Defense | |
| Jun 2, 2026 | Danielsen | 1–0 | Gibbs | Round 1: Danielsen, Henrik - Gibbs, Dominic V | Queen's Pawn Game | |
| Jun 1, 2026 | Danielsen | ½–½ | Degraeve | Round 6: Danielsen, Henrik - Degraeve, Jean-Marc | King's Indian Defense: Fianchetto Variation, Larsen Defense | |
| Mar 8, 2026 | Danielsen | 1–0 | Thorarinsson | Icelandic team chess championship premier league | Pirc Defense: Classical Variation, Quiet System, Czech Defense | |
| Mar 7, 2026 | Johannsson | 0–1 | Danielsen | Icelandic team chess championship premier league | Indian Defense: Wade-Tartakower Defense | |
| Mar 7, 2026 | Danielsen | ½–½ | Ragnarsson | Icelandic team chess championship premier league | Queen's Pawn Game: Barry Attack, Grünfeld Variation | |
| Mar 6, 2026 | Gretarsson | 1–0 | Danielsen | Icelandic team chess championship premier league | King's Indian Defense: Fianchetto Variation, Delayed Fianchetto | |
| Mar 5, 2026 | Danielsen | 0–1 | Williams | Icelandic team chess championship premier league | Horwitz Defense | |
| Dec 4, 2025 | Danielsen | 1–0 | Johannsson | Icelandic team chess championship premier league | Queen's Pawn Game: Colle System, Anti-Colle | |
| Nov 16, 2025 | Danielsen | 1–0 | Kjartansson | Icelandic team chess championship premier league | Queen's Pawn Game: Accelerated London System | |
| Nov 15, 2025 | Birkisson | 0–1 | Danielsen | Icelandic team chess championship premier league | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Nov 15, 2025 | Danielsen | 0–1 | Thorfinnsson | Icelandic team chess championship premier league | King's Indian Attack | |
| Nov 14, 2025 | Skarphedinsson | ½–½ | Danielsen | Icelandic team chess championship premier league | Catalan Opening | |
| Feb 14, 2025 | Molvig | 0–1 | Danielsen | senior-dm | Benoni Defense: Classical Variation, Argentine Counterattack | |
| Feb 13, 2025 | Danielsen | 1–0 | Hansen | 50+ group | King's Pawn Game: Tayler Opening, Inverted Hanham | |
| Feb 12, 2025 | Nielsen | ½–½ | Danielsen | 50+ group | Sicilian Defense: Hyperaccelerated Fianchetto | |
| Feb 11, 2025 | Danielsen | 1–0 | Nielsen | 50+ group | Van't Kruijs Opening | |
| Feb 10, 2025 | Morkore | 0–1 | Danielsen | 50+ group | Pirc Defense: Sveshnikov System | |
| Feb 9, 2025 | Danielsen | ½–½ | Hansen | 50+ group | Queen's Pawn Game: Colle System, Anti-Colle | |
| Feb 8, 2025 | Steenstrup | 0–1 | Danielsen | 50+ group | Blackmar-Diemer Gambit Declined: Vienna Defense | |
| May 25, 2023 | Danielsen | ½–½ | Domalchuk-Jonasson | Icelandic Chess Championship 2023 | Rapport-Jobava System | |
| May 24, 2023 | Ptacnikova | 0–1 | Danielsen | Icelandic Chess Championship 2023 | Pirc Defense | |
| May 22, 2023 | Danielsen | 0–1 | Kjartansson | Icelandic Chess Championship 2023 | Queen's Pawn Game: Colle System | |
| May 20, 2023 | Danielsen | 0–1 | Hjartarson | Icelandic Chess Championship 2023 | Hungarian Opening: Symmetrical Variation | |
| May 19, 2023 | Gretarsson | 1–0 | Danielsen | Icelandic Chess Championship 2023 | Petrov's Defense: Classical Attack, Mason-Showalter Variation | |
| Mar 26, 2023 | Borge | ½–½ | Danielsen | M2 | Petrov's Defense: Modern Attack, Center Variation | |
| Mar 25, 2023 | Danielsen | 1–0 | Andersen | M2 | Queen's Pawn Game: Accelerated London System | |
| Nov 17, 2022 | Danielsen | ½–½ | De Francesco | 30th World Senior Chess Championship 2022 | Catalan Opening: Closed | |
| Nov 17, 2022 | Fiore | 0–1 | Danielsen | 30th World Senior Chess Championship 2022 | Pirc Defense: Austrian Attack, Weiss Variation | |
| Nov 15, 2022 | Jhunjhnuwala | 0–1 | Danielsen | 30th World Senior Chess Championship 2022 | Bird Opening: Dutch Variation | |
| Oct 16, 2022 | Danielsen | 0–1 | Kjartansson | Icelandic Team Championship | Queen's Gambit Declined: Traditional Variation | |
| Oct 15, 2022 | Danielsen | 0–1 | Kazakouski | Icelandic Team Championship | Indian Defense: Knights Variation | |
| Oct 15, 2022 | Pakleza | ½–½ | Danielsen | Icelandic Team Championship | Slav Defense: Exchange Variation | |
| Oct 14, 2022 | Jonsson | 0–1 | Danielsen | Icelandic Team Championship | Petrov's Defense: Classical Attack, Chigorin Variation, Main Line | |
| May 1, 2022 | Danielsen | 1–0 | Nielsen | Sonflow 2022 | King's Pawn Game: Tayler Opening | |
| May 1, 2022 | Vinter-Schou | 1–0 | Danielsen | Sonflow 2022 | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Apr 30, 2022 | Danielsen | 1–0 | Jacobsen | Sonflow 2022 | Semi-Slav Defense: Quiet Variation | |
| Apr 30, 2022 | Hansen | ½–½ | Danielsen | Sonflow 2022 | Rat Defense: Accelerated Gurgenidze | |
| Apr 30, 2022 | Hoi | 0–1 | Danielsen | Sonflow 2022 | Slav Defense: Chebanenko Variation | |
| Sep 20, 2021 | Sychev | 1–0 | Danielsen | 36th European Club Cup | Philidor Defense: Lion Variation | |
| Sep 18, 2021 | Danielsen | 1–0 | Winkels | 36th European Club Cup | Indian Defense: Anti-Nimzo-Indian | |
| — | Danielsen | 1–0 | Thorfinnsson | Icelandic Chess Championship 2023 | East Indian Defense | |
| — | Danielsen | 0–1 | Heimisson | Icelandic Chess Championship 2023 | Hungarian Opening | |
| — | Ingvason | 0–1 | Danielsen | Icelandic Chess Championship 2023 | Catalan Opening | |
| — | Stefansson | 1–0 | Danielsen | Icelandic Chess Championship 2023 | Petrov's Defense: Nimzowitsch Attack | |
| — | Stefansson | 1–0 | Danielsen | Icelandic Chess Championship 2023 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| — | Ragnarsson | ½–½ | Danielsen | Icelandic Chess Championship 2023 | Rat Defense: English Rat | |