| Nov 15, 2025 | Torfoss | 1–0 | Tollefsen | NM for barn og ungdom 2025 | Queen's Indian Defense: Capablanca Variation | |
| Jul 6, 2024 | Ji | ½–½ | Tollefsen | Landsturneringen i sjakk 2024 øvrige klasser | Caro-Kann Defense: Karpov Variation | |
| Jul 5, 2024 | Kaewpitakkun | 1–0 | Tollefsen | Landsturneringen i sjakk 2024 øvrige klasser | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Jul 4, 2024 | Tollefsen | 1–0 | Amundsen | Landsturneringen i sjakk 2024 øvrige klasser | English Opening: King's English Variation, Three Knights System | |
| Jul 3, 2024 | Rustan | ½–½ | Tollefsen | Landsturneringen i sjakk 2024 øvrige klasser | Caro-Kann Defense: Karpov Variation | |
| Jul 2, 2024 | Tollefsen | 1–0 | Sveggen | Landsturneringen i sjakk 2024 øvrige klasser | English Opening: Agincourt Defense | |
| Jul 2, 2024 | Bjorkan | ½–½ | Tollefsen | Landsturneringen i sjakk 2024 øvrige klasser | Pseudo Queen's Indian Defense | |
| Jul 1, 2024 | Tollefsen | ½–½ | Myny | Landsturneringen i sjakk 2024 øvrige klasser | English Opening: King's English Variation, Three Knights System | |
| Jun 30, 2024 | Vokuev | 0–1 | Tollefsen | Landsturneringen i sjakk 2024 øvrige klasser | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jun 29, 2024 | Tollefsen | ½–½ | Dale | Landsturneringen i sjakk 2024 øvrige klasser | English Opening: Caro-Kann Defensive System | |
| Jan 14, 2024 | Tollefsen | 1–0 | Bjørkan | Åpent NM i hurtigsjakk 2024 | English Opening | |
| Jan 14, 2024 | Tollefsen | ½–½ | Myny | Åpent NM i hurtigsjakk 2024 | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Jan 14, 2024 | Hetland | 0–1 | Tollefsen | Åpent NM i hurtigsjakk 2024 | Nimzo-Indian Defense: Three Knights Variation | |
| Jan 14, 2024 | Wright | 1–0 | Tollefsen | Åpent NM i hurtigsjakk 2024 | English Opening: Symmetrical Variation | |
| Jan 13, 2024 | Tollefsen | 1–0 | Sersch | Åpent NM i hurtigsjakk 2024 | English Opening: Great Snake Variation | |
| Jan 13, 2024 | Wernberg | 0–1 | Tollefsen | Åpent NM i hurtigsjakk 2024 | King's Indian Attack: Symmetrical Defense | |
| Jul 8, 2023 | Tollefsen | ½–½ | Kaewpitakkun | Norwegian Championship 2023 (Kadett A) | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Jul 7, 2023 | Tollefsen | ½–½ | Kierulf | Norwegian Championship 2023 (Kadett A) | English Opening: King's English Variation, Kramnik-Shirov Counterattack | |
| Jul 6, 2023 | Bech | ½–½ | Tollefsen | Norwegian Championship 2023 (Kadett A) | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jul 5, 2023 | Tollefsen | ½–½ | Rehman | Norwegian Championship 2023 (Kadett A) | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Jul 4, 2023 | Odegard | ½–½ | Tollefsen | Norwegian Championship 2023 (Kadett A) | English Opening: Symmetrical Variation, Four Knights Variation | |
| Jul 3, 2023 | Stromhaug | ½–½ | Tollefsen | Norwegian Championship 2023 (Kadett A) | Caro-Kann Defense: Karpov Variation | |
| Feb 22, 2023 | Tollefsen | 0–1 | Abrahamsson | Krageroe Resort Chess 2023 | English Opening: Four Knights System, Nimzowitsch Variation | |
| Jul 15, 2022 | Haug | ½–½ | Tollefsen | Norwegian Championship 2022, Lilleputt | Caro-Kann Defense: Endgame Variation | |
| Sep 5, 2021 | Tollefsen | 0–1 | Stenseng | Krageroe Grand Prix 2021 B | English Opening: Symmetrical Variation, Anti-Benoni Variation | |
| Sep 5, 2021 | Hjortland | 0–1 | Tollefsen | Krageroe Grand Prix 2021 B | Queen's Pawn Game: Accelerated London System | |
| Sep 4, 2021 | Engvik | 0–1 | Tollefsen | Krageroe Grand Prix 2021 B | Semi-Slav Defense: Main Line | |
| Sep 3, 2021 | Tollefsen | 1–0 | Gaudernack | Krageroe Grand Prix 2021 B | Queen's Gambit Declined: Albin Countergambit, Lasker Trap | |
