| Mar 8, 2026 | Nielsen | 1–0 | Tisdall | Eliteserien 2025-26 | Sicilian Defense: Kalashnikov Variation | |
| Mar 7, 2026 | Nielsen | ½–½ | Gullaksen | Eliteserien 2025-26 | Sicilian Defense: Kalashnikov Variation | |
| Mar 7, 2026 | Risting | 0–1 | Nielsen | Eliteserien 2025-26 | Nimzo-Indian Defense: Classical Variation, Romanishin Gambit | |
| Feb 8, 2026 | Djurhuus | ½–½ | Nielsen | Eliteserien 2025-26 | English Opening: Carls-Bremen System | |
| Feb 7, 2026 | Nielsen | 0–1 | Haarr | Eliteserien 2025-26 | Caro-Kann Defense: Endgame Offer | |
| Feb 6, 2026 | Aamodt | 1–0 | Nielsen | Eliteserien 2025-26 | Nimzo-Indian Defense: Normal Variation | |
| Dec 27, 2025 | Bronstein | ½–½ | Nielsen | Round 1: Bronstein, Or - Nielsen, Andre | Nimzo-Indian Defense: St. Petersburg Variation, American Variation | |
| Nov 2, 2025 | Nielsen | 0–1 | Hauge | Eliteserien 2025-26 | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Nov 1, 2025 | Sian | * | Nielsen | Eliteserien 2025-26 | Nimzo-Indian Defense: St. Petersburg Variation, American Variation | |
| Oct 31, 2025 | Nielsen | ½–½ | Tallaksen | Eliteserien 2025-26 | Scotch Game: Mieses Variation | |
| Oct 19, 2025 | Wachinger | 1–0 | Nielsen | Round 1: Wachinger, Nikolas - Nielsen, Andre | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Jul 27, 2025 | Ruperez | 0–1 | Nielsen | 41 Open Internacional d'Escacs d'Andorra 2025 | Bogo-Indian Defense: Grünfeld Variation | |
| Jul 26, 2025 | Nielsen | 0–1 | Cuartas | 41 Open Internacional d'Escacs d'Andorra 2025 | Italian Game: Scotch Invitation Declined | |
| Jul 25, 2025 | Gkoumas | ½–½ | Nielsen | 41 Open Internacional d'Escacs d'Andorra 2025 | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Jul 24, 2025 | Andersen | 1–0 | Nielsen | 41 Open Internacional d'Escacs d'Andorra 2025 | Catalan Opening | |
| Jul 23, 2025 | Nielsen | 1–0 | Ballo Serrano | 41 Open Internacional d'Escacs d'Andorra 2025 | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line | |
| Jul 22, 2025 | Diaz Reyes | 0–1 | Nielsen | 41 Open Internacional d'Escacs d'Andorra 2025 | Caro-Kann Defense: Exchange Variation | |
| Jul 21, 2025 | Nielsen | 0–1 | Fiorito | 41 Open Internacional d'Escacs d'Andorra 2025 | Rat Defense: Accelerated Gurgenidze | |
| Jan 3, 2025 | Nielsen | 1–0 | Rayner | 98th Caplin Hastings Masters 2024 | Sicilian Defense: Taimanov Variation | |
| Jan 2, 2025 | Bazakutsa | 1–0 | Nielsen | 98th Caplin Hastings Masters 2024 | Nimzo-Indian Defense: St. Petersburg Variation, American Variation | |
| Jan 1, 2025 | Nielsen | 1–0 | Malinovskii | 98th Caplin Hastings Masters 2024 | French Defense: Winawer Variation, Bogoljubow Variation | |
| Mar 9, 2025 | Tallaksen | 0–1 | Nielsen | Eliteserien 24 25 | Bogo-Indian Defense: Grünfeld Variation | |
| Mar 8, 2025 | Nielsen | ½–½ | Oye-Stromberg | Eliteserien 24 25 | Scotch Game: Mieses Variation | |
| Mar 7, 2025 | Gabrielsen | ½–½ | Nielsen | Eliteserien 24 25 | Caro-Kann Defense: Advance Variation, Short Variation | |
| Feb 9, 2025 | Nielsen | ½–½ | Djurhuus | Eliteserien 24 25 | French Defense: Paulsen Variation | |
| Feb 8, 2025 | Nielsen | ½–½ | Wallace | Eliteserien 24 25 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Feb 7, 2025 | Sahl | ½–½ | Nielsen | Eliteserien 24 25 | Bird Opening | |
| Dec 31, 2024 | Nielsen | ½–½ | Burrows | 98th Caplin Hastings Masters 2024 | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| Dec 31, 2024 | Alcindor | 0–1 | Nielsen | 98th Caplin Hastings Masters 2024 | Ponziani Opening: Vukovic Gambit | |
| Dec 30, 2024 | Kaasen | 1–0 | Nielsen | 98th Caplin Hastings Masters 2024 | Nimzo-Indian Defense: St. Petersburg Variation, American Variation | |
| Dec 29, 2024 | Nielsen | 1–0 | Verbin | 98th Caplin Hastings Masters 2024 | French Defense: Burn Variation | |
| Dec 29, 2024 | Gorainow | ½–½ | Nielsen | 98th Caplin Hastings Masters 2024 | Caro-Kann Defense: Two Knights Attack | |
| Dec 28, 2024 | Nielsen | ½–½ | Lishoy Gengis Paratazham | 98th Caplin Hastings Masters 2024 | Philidor Defense: Lion Variation, Shirov Gambit | |
| Aug 12, 2024 | Kaasen | 1–0 | Nielsen | Lewis Chess Legends Open | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Aug 11, 2024 | Nielsen | 1–0 | Bjorkan | Lewis Chess Legends Open | French Defense: Rubinstein Variation, Blackburne Defense | |
| Aug 10, 2024 | Bogner | 1–0 | Nielsen | Lewis Chess Legends Open | Nimzo-Indian Defense: St. Petersburg Variation | |
| Aug 9, 2024 | Nielsen | 1–0 | Hermansson | Lewis Chess Legends Open | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Aug 8, 2024 | Vestby-Ellingsen | ½–½ | Nielsen | Lewis Chess Legends Open | English Opening: King's English Variation | |
| Aug 6, 2024 | Storme | 1–0 | Nielsen | Lewis Chess Legends Open | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jan 5, 2024 | Cherniaev | ½–½ | Nielsen | Caplin Hastings Masters 2023 | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Jan 4, 2024 | Nielsen | 1–0 | Larkin | Caplin Hastings Masters 2023 | Sicilian Defense: Najdorf Variation | |
| Jan 3, 2024 | Pert | ½–½ | Nielsen | Caplin Hastings Masters 2023 | Queen's Indian Defense: Kasparov-Petrosian Variation, Romanishin Attack | |
| Jan 2, 2024 | Nielsen | 0–1 | Edouard | Caplin Hastings Masters 2023 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jan 1, 2024 | Gallagher | ½–½ | Nielsen | Caplin Hastings Masters 2023 | Four Knights Game: Spanish Variation, Rubinstein Variation, Henneberger Variation | |
| Oct 27, 2024 | Nielsen | ½–½ | Hauge | Eliteserien 24 25 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Czerniak Variation | |
| Oct 26, 2024 | Johansson | 0–1 | Nielsen | Eliteserien 24 25 | Bogo-Indian Defense: Grünfeld Variation | |
| Oct 25, 2024 | Kulaots | 1–0 | Nielsen | Eliteserien 24 25 | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Mar 10, 2024 | Risting | ½–½ | Nielsen | Eliteserien 2023 24 | Nimzo-Indian Defense: Three Knights Variation | |
| Mar 9, 2024 | Nielsen | ½–½ | Lund | Eliteserien 2023 24 | French Defense: Winawer Variation, Advance Variation | |
| Mar 8, 2024 | Stokke | ½–½ | Nielsen | Eliteserien 2023 24 | Catalan Opening: Open Defense, Classical Line | |
| Feb 4, 2024 | Nielsen | ½–½ | Elmi | Eliteserien 2023 24 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Feb 3, 2024 | Kaasen | 1–0 | Nielsen | Eliteserien 2023 24 | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Feb 2, 2024 | Nielsen | 0–1 | Kulaots | Eliteserien 2023 24 | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Dec 31, 2023 | Nielsen | 0–1 | Zhang | Caplin Hastings Masters 2023 | French Defense: Burn Variation | |
| Dec 30, 2023 | Sulskis | 0–1 | Nielsen | Caplin Hastings Masters 2023 | English Opening: King's English Variation | |
| Dec 29, 2023 | Nielsen | 1–0 | Mikhalevski | Caplin Hastings Masters 2023 | Sicilian Defense: Scheveningen Variation, Keres Attack | |
| Dec 28, 2023 | Blades | 0–1 | Nielsen | Caplin Hastings Masters 2023 | Scotch Game: Schmidt Variation | |
| Mar 31, 2023 | Nielsen | 0–1 | Papp | Reykjavik Open | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 30, 2023 | Nielsen | 1–0 | Kjartansson | Reykjavik Open 2023 | Italian Game: Classical Variation, Giuoco Pianissimo, with a6 | |
| Mar 30, 2023 | Ioannidis | 1–0 | Nielsen | Reykjavik Open 2023 | Tarrasch Defense: Schara Gambit | |
| Mar 29, 2023 | Gajewski | 0–1 | Nielsen | Reykjavik Open 2023 | Tarrasch Defense | |
| Jan 13, 2023 | Cieslak | ½–½ | Nielsen | Prague Open | Czech Tour | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Jan 12, 2023 | Nielsen | ½–½ | Zielonka | Prague Open | Czech Tour | Sicilian Defense: Taimanov Variation | |
| Jan 11, 2023 | Goroshkov | 1–0 | Nielsen | Prague Open | Czech Tour | Dutch Defense: Leningrad Variation, Matulovic Variation | |
| Jan 10, 2023 | Nielsen | 1–0 | Hlavina | Prague Open | Czech Tour | French Defense: Burn Variation | |
| Jan 9, 2023 | Kreken | ½–½ | Nielsen | Prague Open | Czech Tour | Dutch Defense: Leningrad Variation, Matulovic Variation | |
| Jan 8, 2023 | Nielsen | 0–1 | Elmi | Prague Open | Czech Tour | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Jan 7, 2023 | Mohylnyi | 0–1 | Nielsen | Prague Open | Czech Tour | Scotch Game: Mieses Variation | |
| Jan 6, 2023 | Reichel | 0–1 | Nielsen | Prague Open | Czech Tour | ? | |
| Oct 29, 2023 | Shehzad | ½–½ | Nielsen | Eliteserien 2023 24 | Van Geet Opening: Berlin Gambit | |
| Oct 28, 2023 | Nielsen | ½–½ | Tisdall | Eliteserien 2023 24 | Sicilian Defense: Kan Variation, Wing Attack | |
| Oct 27, 2023 | Nielsen | ½–½ | Ingebretsen | Eliteserien 2023 24 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Mar 6, 2022 | Nielsen | 0–1 | Demac | Eliteserien 2021/22 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Mar 5, 2022 | Kaasen | 1–0 | Nielsen | Eliteserien 2021/22 | Catalan Opening: Open Defense, Classical Line | |
| Mar 4, 2022 | Nielsen | 1–0 | Kizatbay | Eliteserien 2021/22 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Jan 14, 2022 | Nielsen | ½–½ | Oye-Stromberg | Open Praha 2022 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jan 13, 2022 | Moser | 0–1 | Nielsen | Open Praha 2022 | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Jan 12, 2022 | Nielsen | 0–1 | Van Osch | Open Praha 2022 | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Jan 11, 2022 | Carlsson | 1–0 | Nielsen | Open Praha 2022 | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Jan 10, 2022 | Nielsen | ½–½ | Mannion | Open Praha 2022 | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| Jan 9, 2022 | Blahynka | 0–1 | Nielsen | Open Praha 2022 | Dutch Defense: Leningrad Variation, Matulovic Variation | |
| Oct 31, 2021 | Ranaldi | 1–0 | Nielsen | Eliteserien 2021/22 | Dutch Defense: Raphael Variation | |
| Oct 30, 2021 | Royset | 1–0 | Nielsen | Eliteserien 2021/22 | Vienna Game: Mieses Variation | |
| Oct 29, 2021 | Nielsen | 1–0 | Diesen | Eliteserien 2021/22 | Sicilian Defense: Najdorf Variation, Poisoned Pawn Variation | |
| Aug 22, 2021 | Nielsen | * | Kuhn | Innsbruck Festival | ? | |
| Aug 22, 2021 | Nielsen | * | Kuhn | Innsbruck Festival | ? | |
| Jan 19, 2020 | Kaasen | 1–0 | Nielsen | Eliteserien 2019/20 | Ruy Lopez: Closed, Chigorin Defense | |
| Jan 18, 2020 | Nielsen | ½–½ | Machlik | Eliteserien 2019/20 | Caro-Kann Defense: Classical Variation, Lobron System | |
| Jan 17, 2020 | Tryggestad | 1–0 | Nielsen | Eliteserien 2019/20 | Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line | |