| Apr 16, 2026 | Olsen | 0–1 | Bakhyt | Round 6: Olsen, William Fegth - Bakhyt, Rauan | Catalan Opening | |
| Apr 13, 2026 | Tulegen | 1–0 | Olsen | Round 4: Tulegen, Ramazan - Olsen, William Fegth | Four Knights Game: Scotch Variation Accepted, Main Line | |
| Jan 4, 2026 | Olsen | ½–½ | Mortensen | Åpent NM i hurtigsjakk 2026 | Ruy Lopez: Morphy Defense | |
| Jan 4, 2026 | Gullaksen | 1–0 | Olsen | Åpent NM i hurtigsjakk 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 4, 2026 | Olsen | 0–1 | Brattgjerd | Åpent NM i hurtigsjakk 2026 | Caro-Kann Defense: Tartakower Variation | |
| Jan 4, 2026 | Arvola | 0–1 | Olsen | Åpent NM i hurtigsjakk 2026 | Sicilian Defense: Closed, Traditional | |
| Jan 3, 2026 | Olsen | 1–0 | Moen | Åpent NM i hurtigsjakk 2026 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Fianchetto Variation | |
| Jan 3, 2026 | Breivik | 1–0 | Olsen | Åpent NM i hurtigsjakk 2026 | English Opening: Anglo-Indian Defense | |
| Jan 3, 2026 | Fossheim | 0–1 | Olsen | Åpent NM i hurtigsjakk 2026 | Sicilian Defense: Lasker-Pelikan Variation | |
| Jan 3, 2026 | Olsen | 1–0 | Hetland | Åpent NM i hurtigsjakk 2026 | Sicilian Defense: Kan Variation, Modern Variation | |
| Jan 3, 2026 | Olsen | 0–1 | Kreken | Åpent NM i hurtigsjakk 2026 | Ruy Lopez: Closed, Bogoljubow Variation | |
| Nov 16, 2025 | Amundsen | 0–1 | Olsen | NM for barn og ungdom 2025 | Queen's Indian Defense | |
| Nov 16, 2025 | Olsen | 1–0 | Royrvik | NM for barn og ungdom 2025 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Nov 15, 2025 | Stromme | * | Olsen | NM for barn og ungdom 2025 | Rapport-Jobava System | |
| Nov 15, 2025 | Olsen | ½–½ | Trygstad | NM for barn og ungdom 2025 | Slav Defense: Chebanenko Variation, Advance System | |
| Nov 15, 2025 | Langmyr | 0–1 | Olsen | NM for barn og ungdom 2025 | Indian Defense | |
| Jul 12, 2025 | Olsen | ½–½ | Nord | Landsturneringen 2025 | French Defense: Exchange Variation, Monte Carlo Variation | |
| Jul 11, 2025 | Jensen | ½–½ | Olsen | Landsturneringen 2025 | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Jul 10, 2025 | Olsen | 1–0 | Leer-Helgesen | Landsturneringen 2025 | Sicilian Defense: Prins Variation | |
| Jul 9, 2025 | Hellebo | 0–1 | Olsen | Landsturneringen 2025 | Sicilian Defense: Kan Variation, Knight Variation | |
| Jul 8, 2025 | Olsen | ½–½ | Trygstad | Landsturneringen 2025 | Scandinavian Defense: Valencian Variation | |
| Jul 7, 2025 | Olsen | ½–½ | Royrvik | Landsturneringen 2025 | Queen's Pawn Game: Chigorin Variation | |
| Jul 7, 2025 | Bae | 0–1 | Olsen | Landsturneringen 2025 | Sicilian Defense: Closed | |
| Jul 6, 2025 | Mylam | 0–1 | Olsen | Landsturneringen 2025 | Sicilian Defense: French Variation | |
| Jul 5, 2025 | Olsen | 1–0 | Anderson | Landsturneringen 2025 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| May 29, 2025 | Moen | 1–0 | Olsen | Norwegian team championship 2025 | French Defense: Winawer Variation, Bogoljubow Variation | |
| Apr 28, 2024 | Olsen | 0–1 | Nakonechnyi | Round 10: Olsen, William Fegth - Nakonechnyi, Oleksii | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Apr 28, 2024 | Ilko-Toth | 1–0 | Olsen | Round 2: Ilko-Toth, Andras - Olsen, William Fegth | Zukertort Opening: Kingside Fianchetto | |
| Apr 27, 2024 | Olsen | 0–1 | Ilko-Toth | Round 6: Olsen, William Fegth - Ilko-Toth, Andras | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jan 13, 2024 | Olsen | 1–0 | Våge | Åpent NM i hurtigsjakk 2024 | Caro-Kann Defense: Maróczy Variation | |
| Jan 13, 2024 | Lønning | ½–½ | Olsen | Åpent NM i hurtigsjakk 2024 | Sicilian Defense: Löwenthal Variation | |
| Nov 3, 2024 | Olsen | 1–0 | Gjersvik | NMU - NM for barn og ungdom 2024 | Queen's Pawn Game: Zukertort Variation | |
| Nov 3, 2024 | Gjon | 0–1 | Olsen | NMU - NM for barn og ungdom 2024 | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Nov 2, 2024 | Olsen | 1–0 | Mortensen | NMU - NM for barn og ungdom 2024 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Nov 2, 2024 | Dolek | 0–1 | Olsen | NMU - NM for barn og ungdom 2024 | French Defense: Advance Variation, Paulsen Attack | |
| Jul 6, 2024 | Lysen | 0–1 | Olsen | Landsturneringen 2024 | English Opening: Anglo-Dutch Defense | |
| Jul 5, 2024 | Olsen | 0–1 | Blikom | Landsturneringen 2024 | Queen's Pawn Game: Symmetrical Variation | |
| Jul 4, 2024 | Maurstad | ½–½ | Olsen | Landsturneringen 2024 | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Jul 3, 2024 | Olsen | 1–0 | Yang | Landsturneringen 2024 | Indian Defense: Budapest Defense, Adler Variation | |
| Jul 2, 2024 | Olsen | 1–0 | Furstrand | Landsturneringen 2024 | English Opening: Agincourt Defense | |
| Jul 2, 2024 | Schjott-Bugge | 0–1 | Olsen | Landsturneringen 2024 | Pirc Defense: Sveshnikov System | |
| Jul 1, 2024 | Braaten | 1–0 | Olsen | Landsturneringen 2024 | King's Indian Defense: Normal Variation, Rare Defenses | |
| Jun 30, 2024 | Olsen | 1–0 | Benjamin Vatne | Landsturneringen 2024 | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Jun 29, 2024 | Langmyr | 0–1 | Olsen | Landsturneringen 2024 | Dutch Defense | |
| — | Olsen | 0–1 | Zhang | Nordic Youth Chess Championship | Catalan Opening: Open Defense, Classical Line | |
| — | Olsen | 1–0 | Ernisson | Nordic Youth Chess Championship | Italian Game: Scotch Gambit, Anderssen Attack | |
| — | Olsen | ½–½ | Elnegaard | Nordic Youth Chess Championship | King's Indian Attack | |
| — | Shi | 1–0 | Olsen | Nordic Youth Chess Championship | Petrov's Defense: Kaufmann Attack | |
| — | Xin | ½–½ | Olsen | Nordic Youth Chess Championship | Dutch Defense | |
| — | Jorgensen | ½–½ | Olsen | Nordic Youth Chess Championship | Dutch Defense: Classical Variation | |