| Jul 4, 2026 | Bende | 1–0 | Nilsson | Round 9: Bende, Tobias - Nilsson, Oliver | Sicilian Defense: Najdorf Variation | |
| Jul 3, 2026 | Nilsson | 0–1 | Bergman | Round 8: Nilsson, Oliver - Bergman, Nils | Queen's Gambit Accepted: Central Variation, Greco Variation | |
| Jul 2, 2026 | Strand | ½–½ | Nilsson | Round 7: Strand, Sixten - Nilsson, Oliver | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jul 2, 2026 | Nilsson | 1–0 | Nygren | Round 6: Nilsson, Oliver - Nygren, David | French Defense: Winawer Variation, Bogoljubow Variation | |
| Jul 1, 2026 | Nilsson | 0–1 | Arman | Round 10: Nilsson, Oliver - Arman, Deniz | Scandinavian Defense: Gubinsky-Melts Defense | |
| Jul 1, 2026 | Walter | 0–1 | Nilsson | Round 11: Walter, Fridolf - Nilsson, Oliver | French Defense: Classical Variation, Swiss Variation | |
| Jul 1, 2026 | Bergdahl | 0–1 | Nilsson | Round 9: Bergdahl, Daniel - Nilsson, Oliver | French Defense: Advance Variation, Paulsen Attack | |
| Jul 1, 2026 | Nilsson | 1–0 | Malm Lindberg | Round 8: Nilsson, Oliver - Malm Lindberg, Henrik | Sicilian Defense: Closed, Traditional | |
| Jul 1, 2026 | Sarwari | 0–1 | Nilsson | Round 7: Sarwari, Hamidullah - Nilsson, Oliver | Indian Defense: Accelerated London System | |
| Jul 1, 2026 | Bergqvist | 0–1 | Nilsson | Round 5: Bergqvist, Morris - Nilsson, Oliver | Queen's Gambit Declined: Chigorin Defense, Exchange Variation | |
| Jul 1, 2026 | Nilsson | 1–0 | Wedin | Round 4: Nilsson, Oliver - Wedin, Svante | Zukertort Opening: Reversed Grünfeld | |
| Jul 1, 2026 | Varjomaa | 1–0 | Nilsson | Round 3: Varjomaa, Stefan - Nilsson, Oliver | English Opening: Caro-Kann Defensive System | |
| Jul 1, 2026 | Nilsson | 1–0 | Jackmann | Round 2: Nilsson, Oliver - Jackmann, Jonathan | Indian Defense: Anti-Nimzo-Indian | |
| Jul 1, 2026 | Ersson | ½–½ | Nilsson | Round 1: Ersson, Arve - Nilsson, Oliver | French Defense: Steinitz Attack | |
| Jul 1, 2026 | Nilsson | 0–1 | Sandberg | Round 6: Nilsson, Oliver - Sandberg, Lucas | Sicilian Defense: Scheveningen Variation, Keres Attack | |
| Jul 1, 2026 | Dingertz | ½–½ | Nilsson | Round 5: Dingertz, Gustav - Nilsson, Oliver | Sicilian Defense: Najdorf Variation | |
| Jun 30, 2026 | Nilsson | 0–1 | Dingertz | Round 4: Nilsson, Oliver - Dingertz, Filip | Scotch Game: Mieses Variation | |
| Jun 29, 2026 | Johansson | 0–1 | Nilsson | Round 3: Johansson, Ulf 1966 - Nilsson, Oliver | Sicilian Defense: Chekhover Variation | |
| Jun 28, 2026 | Nilsson | 0–1 | Ljung | Round 2: Nilsson, Oliver - Ljung, Harald | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jun 27, 2026 | Cramling Bellon | 0–1 | Nilsson | Round 1: Cramling Bellon, Anna - Nilsson, Oliver | King's Indian Defense: Makogonov Variation | |
| Apr 7, 2026 | Ghazarian | 0–1 | Nilsson | Round 1: Ghazarian, Kirk - Nilsson, Oliver | ? | |
| Feb 8, 2026 | Nilsson | 0–1 | Fransson | Elite Hotels Open 2026 | Slav Defense: Modern Line | |
| Feb 8, 2026 | Wahlstrom | 0–1 | Nilsson | Elite Hotels Open 2026 | Sicilian Defense: Scheveningen Variation, Classical Main Line | |
| Feb 7, 2026 | Nilsson | ½–½ | Eriksson | Elite Hotels Open 2026 | Nimzo-Indian Defense: Sämisch Variation | |
| Feb 7, 2026 | Rasti | 1–0 | Nilsson | Elite Hotels Open 2026 | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Feb 6, 2026 | Nilsson | 1–0 | Kallen | Elite Hotels Open 2026 | Semi-Slav Defense | |
| Feb 6, 2026 | Lindholm | ½–½ | Nilsson | Elite Hotels Open 2026 | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Feb 6, 2026 | Nilsson | 1–0 | Frisk | Elite Hotels Open 2026 | Nimzo-Indian Defense: Sämisch Variation | |
| Feb 6, 2026 | Zandler Andersson | 1–0 | Nilsson | Elite Hotels Open 2026 | Nimzo-Indian Defense: Sämisch Variation | |
| Feb 6, 2026 | Zandler Andersson | 0–1 | Nilsson | Elite Hotels Open 2026 | Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line | |
| Jan 18, 2026 | Fendrich | 0–1 | Nilsson | Rond 6: Fendrich, David - Nilsson, Oliver | Réti Opening: Anglo-Slav Variation, with g3 | |
| Jan 18, 2026 | Arnelind | 0–1 | Nilsson | Rond 5: Arnelind, Mikael - Nilsson, Oliver | Grünfeld Defense: Exchange Variation, Classical Variation | |
| Jan 16, 2026 | Nilsson | 0–1 | Eklund | Rond 4: Nilsson, Oliver - Eklund, Lars-Goran | Slav Defense: Exchange Variation | |
| Nov 10, 2025 | Wenzel | ½–½ | Nilsson | Round 3: Wenzel, Birger - Nilsson, Oliver | Torre Attack: Fianchetto Defense | |
| Nov 1, 2025 | Nilsson | 1–0 | Olsson | Round 6: Nilsson, Oliver - Olsson, William | Sicilian Defense: Smith-Morra Gambit | |
| Nov 1, 2025 | Anton Frank | 0–1 | Nilsson | Round 5: Anton Frank - Nilsson, Oliver | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Oct 31, 2025 | Nilsson | 1–0 | Henriksson | Round 4: Nilsson, Oliver - Henriksson, Johan | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Oct 31, 2025 | Grahn | ½–½ | Nilsson | Round 3: Grahn, Vidar - Nilsson, Oliver | King's Indian Defense: Semi-Averbakh System | |
| Oct 31, 2025 | Nilsson | 0–1 | Mashhadi | Round 8: Nilsson, Oliver - Mashhadi, Peyman | Pirc Defense: Bayonet Attack | |
| Oct 31, 2025 | Blomqvist | 0–1 | Nilsson | Round 7: Blomqvist, Erik - Nilsson, Oliver | French Defense: Classical Variation, Shirov-Anand Variation | |
| Sep 28, 2025 | Religa | 1–0 | Nilsson | Snabbschacks-SM 2025 | Sicilian Defense: French Variation | |
| Sep 26, 2025 | Nilsson | 0–1 | Religa | Blixt-SM 2025 | King's Indian Defense: Orthodox Variation | |
| Sep 19, 2025 | Blomqvist | 1–0 | Nilsson | Round 2: Blomqvist, Erik - Nilsson, Oliver | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 14, 2025 | Nilsson | 0–1 | Iunusov | 2025 FIDE World Blitz Team Championschip Pool D | Italian Game: Scotch Gambit, Max Lange Attack | |
| Jun 14, 2025 | Cieslak | 1–0 | Nilsson | 2025 FIDE World Blitz Team Championschip Pool D | King's Indian Defense: Orthodox Variation, Glek Defense | |
| Jun 14, 2025 | Nilsson | 1–0 | Skytte | 2025 FIDE World Blitz Team Championschip Pool D | Caro-Kann Defense: Tartakower Variation | |
| Jun 14, 2025 | Mendonca | 1–0 | Nilsson | 2025 FIDE World Blitz Team Championschip Pool D | East Indian Defense | |
| Jun 14, 2025 | Ansat | 1–0 | Nilsson | 2025 FIDE World Blitz Team Championschip Pool D | Sicilian Defense: Modern Variations, Main Line | |
| Jun 14, 2025 | Nilsson | 1–0 | Kuka Kyle | 2025 FIDE World Blitz Team Championschip Pool D | Caro-Kann Defense: Tartakower Variation | |
| Jun 14, 2025 | Slavin | 1–0 | Nilsson | 2025 FIDE World Blitz Team Championschip Pool D | Nimzo-Larsen Attack: Classical Variation | |
| Jun 14, 2025 | Nilsson | 0–1 | Ruck | 2025 FIDE World Blitz Team Championschip Pool D | Caro-Kann Defense: Classical Variation, Main Line | |
| Jun 14, 2025 | Gan-Od | 1–0 | Nilsson | 2025 FIDE World Blitz Team Championschip Pool D | English Opening: Symmetrical Variation | |
| Jun 14, 2025 | Nilsson | 0–1 | Badacsonyi | 2025 FIDE World Blitz Team Championschip Pool D | French Defense: Classical Variation, Shirov-Anand Variation | |
| Jun 14, 2025 | Patel | 0–1 | Nilsson | 2025 FIDE World Blitz Team Championschip Pool D | Bird Opening | |
| Jun 14, 2025 | Nilsson | 0–1 | Suleymenov | 2025 FIDE World Blitz Team Championschip Pool D | Scotch Game: Scotch Gambit, Advance Variation | |
| Jun 14, 2025 | Henriquez Garcia | 0–1 | Nilsson | 2025 FIDE World bLITZ Team Championschip Pool D | Indian Defense: Przepiorka Variation | |
| Jun 13, 2025 | Nilsson | 1–0 | Bansal | Round 12: Nilsson, Oliver - Bansal, Saahil | Caro-Kann Defense: Tartakower Variation | |
| Jun 13, 2025 | Nilsson | 0–1 | Mutisya | Round 11: Nilsson, Oliver - Mutisya, Jully | Pirc Defense: Byrne Variation | |
| Jun 13, 2025 | Longson | 1–0 | Nilsson | Round 10: Longson, Sarah N - Nilsson, Oliver | Sicilian Defense: Closed | |
| Jun 13, 2025 | Blokhin | 1–0 | Nilsson | Round 9: Blokhin, Sofia - Nilsson, Oliver | King's Indian Defense: Sämisch Variation, Sämisch Gambit | |
| Jun 12, 2025 | Nilsson | 1–0 | Skytte | Round 8: Nilsson, Oliver - Skytte, Robert | Sicilian Defense: Closed, Traditional | |
| Jun 12, 2025 | Vashisht-Pigem | 0–1 | Nilsson | Round 7: Vashisht-Pigem, Raman - Nilsson, Oliver | Sicilian Defense: Moscow Variation, Main Line | |
| Jun 12, 2025 | Nilsson | 1–0 | Franco | Round 6: Nilsson, Oliver - Franco, Gaston | Sicilian Defense: Closed, Traditional | |
| Jun 12, 2025 | Nilsson | 0–1 | Nomin-Erdene | Round 5: Nilsson, Oliver - Nomin-Erdene, Davaademberel | Caro-Kann Defense: Tartakower Variation | |
| Jun 11, 2025 | Iunusov | 1–0 | Nilsson | 2025 FIDE World Rapid Team Championship matches 19-26 | Sicilian Defense: Alapin Variation | |
| Jun 11, 2025 | Nilsson | 1–0 | Vincent | 2025 FIDE World Rapid Team Championschip matches 11-18 | Italian Game: Scotch Gambit, Max Lange Attack | |
| Jun 11, 2025 | Schulze | 0–1 | Nilsson | 2025 FIDE World Rapid Team Championship matches 19-26 | Sicilian Defense: Moscow Variation, Main Line | |
| Jun 11, 2025 | Cieslak | 1–0 | Nilsson | 2025 FIDE World Rapid Team Championschip matches 11-18 | Sicilian Defense: Taimanov Variation | |
| Apr 20, 2025 | Nilsson | ½–½ | Grahn | The Paskturneringen 2025 | Sicilian Defense: Four Knights Variation, Cobra Variation | |
| Apr 18, 2025 | Nilsson | 0–1 | Soderstrom | The Paskturneringen 2025 | Modern Defense | |
| Mar 16, 2025 | Heijdenberg | 0–1 | Nilsson | Round 7: Heijdenberg, Ronny - Nilsson, Oliver | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Feb 9, 2025 | Nilsson | 0–1 | Trost | Elite Hotels Open 2025 | Caro-Kann Defense: Panov Attack, Fianchetto Defense | |
| Feb 9, 2025 | Joensson | 1–0 | Nilsson | Elite Hotels Open 2025 | Bogo-Indian Defense: Retreat Variation | |
| Feb 8, 2025 | Ekberg | ½–½ | Nilsson | Elite Hotels Open 2025 | English Opening: Symmetrical Variation | |
| Feb 7, 2025 | Kucuksari | 1–0 | Nilsson | Elite Hotels Open 2025 | Queen's Pawn Game: London System | |
| Sep 8, 2024 | Nilsson | 0–1 | Nilsson | The Kvibergspelen 2024 | Dutch Defense: Raphael Variation | |
| Sep 8, 2024 | Thyberg | 0–1 | Nilsson | The Kvibergspelen 2024 | Sicilian Defense: Smith-Morra Gambit Accepted, Pin Defense | |
| Sep 7, 2024 | Nilsson | 1–0 | Helin | The Kvibergspelen 2024 | Philidor Defense: Lion Variation | |
| Sep 7, 2024 | Muntean | 1–0 | Nilsson | The Kvibergspelen 2024 | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Sep 6, 2024 | Nilsson | 1–0 | Ottgard | The Kvibergspelen 2024 | East Indian Defense | |
| Sep 6, 2024 | Nord | 1–0 | Nilsson | The Kvibergspelen 2024 | Slav Defense: Schlechter Variation | |
| Jul 7, 2024 | Rasti | ½–½ | Nilsson | Schack-SM 2024: Junior-SM | Queen's Pawn Game: Symmetrical Variation | |
| Jul 6, 2024 | Nilsson | 1–0 | Valcu | Schack-SM 2024: Junior-SM | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Jul 5, 2024 | Nilsson | 0–1 | Falkevall | Schack-SM 2024: Junior-SM | French Defense: Exchange Variation, Monte Carlo Variation | |
| Jul 4, 2024 | Seo | 1–0 | Nilsson | Schack-SM 2024: Junior-SM | Sicilian Defense: Taimanov Variation | |
| Jul 3, 2024 | Nilsson | 0–1 | Soderstrom | Schack-SM 2024: Junior-SM | Ruy Lopez: Closed, Anti-Marshall | |
| Jul 2, 2024 | Wernberg | 1–0 | Nilsson | Schack-SM 2024: Junior-SM | English Opening: Caro-Kann Defensive System | |
| Jul 1, 2024 | Nilsson | ½–½ | Frank | Schack-SM 2024: Junior-SM | Ruy Lopez: Closed, Flohr System | |
| Jun 30, 2024 | Grahn | 1–0 | Nilsson | Schack-SM 2024: Junior-SM | Ruy Lopez: Berlin Defense | |
| Jun 29, 2024 | Nilsson | 1–0 | Strom-Engdahl | Schack-SM 2024: Junior-SM | Scotch Game: Schmidt Variation | |
| Feb 9, 2024 | Nilsson | 1–0 | Olsson | Elite Hotels Open 2024 | Sicilian Defense: Closed, Traditional | |
| Feb 9, 2024 | Rydstrom | 1–0 | Nilsson | Elite Hotels Open 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Feb 9, 2024 | Kistrup | 1–0 | Nilsson | Elite Hotels Open 2024 | King's Indian Defense: Makogonov Variation | |
| Oct 30, 2024 | Nilsson | ½–½ | Omarsson | Round 8: Nilsson, Oliver - Omarsson, Adam | Pirc Defense: Classical Variation | |
| Oct 30, 2024 | Nilsson | 1–0 | Kingsley | Round 9: Nilsson, Oliver - Kingsley, Elias | Sicilian Defense: Four Knights Variation | |
| Oct 28, 2024 | Nilsson | ½–½ | Ostensson | Round 5: Nilsson, Oliver - Ostensson, Julia | Sicilian Defense: Kan Variation, Wing Attack | |
| Oct 28, 2024 | Thorisson | ½–½ | Nilsson | Round 6: Thorisson, Benedikt - Nilsson, Oliver | Sicilian Defense: Taimanov Variation | |
| Sep 16, 2023 | Hamark | 1–0 | Nilsson | The Kvibergspelen 2023 | Scotch Game: Scotch Gambit, Advance Variation | |
| Sep 15, 2023 | Nilsson | 0–1 | Cederstam | The Kvibergspelen 2023 | Sicilian Defense: Closed, Traditional | |
| Sep 15, 2023 | Nilsson | 0–1 | Nygren | The Kvibergspelen 2023 | French Defense: King's Indian Attack | |