| — | Gustafsson | 1–0 | Baidetskyi | Schachbundesliga Runde 8 | Philidor Defense: Lion Variation | |
| — | Santos Ruiz | ½–½ | Gustafsson | Schachbundesliga Runde 7 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Feb 8, 2026 | Banusz | 1–0 | Gustafsson | 1. BL Pauli | Réti Opening: Advance Variation | |
| Feb 7, 2026 | Gustafsson | ½–½ | Kunin | 1. BL Pauli | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jan 11, 2026 | Gustafsson | ½–½ | Kazakouski | Round 6: Gustafsson, Jan - Kazakouski, Valery | English Opening: Agincourt Defense | |
| Jan 10, 2026 | Haring | ½–½ | Gustafsson | Round 5: Haring, Filip - Gustafsson, Jan | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Dec 7, 2025 | Gustafsson | ½–½ | Druska | Round 4: Gustafsson, Jan - Druska, Juraj | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Dec 6, 2025 | Klimkowski | ½–½ | Gustafsson | Round 3: Klimkowski, Jan - Gustafsson, Jan | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Sep 28, 2025 | Gustafsson | ½–½ | Vitiugov | Bundesliga 25/26 | Nimzo-Indian Defense: Classical Variation | |
| Sep 27, 2025 | Ferreira | ½–½ | Gustafsson | Bundesliga 25/26 | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Mar 23, 2025 | Gatineau | ½–½ | Gustafsson | Schachbundesliga 2024/2025 | Queen's Gambit Declined: Exchange Variation, Sämisch Variation | |
| Mar 22, 2025 | Gustafsson | 1–0 | Loxine | Schachbundesliga 2024/2025 | Nimzo-Indian Defense: Classical Variation, Milner-Barry Variation | |
| Feb 23, 2025 | Gustafsson | 1–0 | Rafiee | new tournament description | Zukertort Opening | |
| Feb 22, 2025 | Stojanovic | ½–½ | Gustafsson | new tournament description | Italian Game: Giuoco Pianissimo, Normal | |
| Feb 2, 2025 | Gustafsson | 1–0 | Dautov | Deutsche Schachbundesliga 24-25 | English Opening: Agincourt Defense | |
| Feb 1, 2025 | Wojtaszek | ½–½ | Gustafsson | Deutsche Schachbundesliga 24-25 | English Opening: King's English Variation, Four Knights Variation, Flexible Line | |
| Jan 12, 2025 | Nielsen | ½–½ | Gustafsson | Schachbundesliga 24/25 | Queen's Gambit Accepted: Furman Variation | |
| Jan 11, 2025 | Gustafsson | ½–½ | Babula | Schachbundesliga 24/25 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Sep 29, 2024 | Zelcic | 1–0 | Gustafsson | Deutsche Schachbundesliga 24-25 | Caro-Kann Defense: Classical Variation, Lobron System | |
| Sep 28, 2024 | Albers | 0–1 | Gustafsson | Deutsche Schachbundesliga 24-25 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Apr 28, 2024 | Hracek | ½–½ | Gustafsson | Bundesliga 2023/2024 | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Apr 27, 2024 | Gustafsson | ½–½ | Jovanovic | Bundesliga 2023/2024 | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Mar 17, 2024 | Pechac | 1–0 | Gustafsson | Dt. Schachbundesliga 2023/2024 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Mar 16, 2024 | Gustafsson | 1–0 | Walter | Dt. Schachbundesliga 2023/2024 | Queen's Gambit Declined: Charousek Variation | |
| Feb 25, 2024 | Gustafsson | ½–½ | Vachier-Lagrave | Schachbundesliga 23/24 | Queen's Gambit Declined: Tartakower Defense | |
| Feb 24, 2024 | Laurent-Paoli | 1–0 | Gustafsson | Schachbundesliga 23/24 | Queen's Gambit Declined: Modern Variation | |
| Feb 23, 2024 | Gustafsson | 0–1 | Duda | Schachbundesliga 23/24 | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Jan 14, 2024 | Krejci | ½–½ | Gustafsson | Tunier | Nimzo-Indian Defense: Reshevsky Variation | |
| Jan 13, 2024 | Gustafsson | ½–½ | Burg | Tunier | Nimzo-Indian Defense: Classical Variation | |
| Oct 22, 2023 | Gustafsson | ½–½ | Warmerdam | Schachbundesliga | Queen's Gambit Declined: Barmen Variation | |
| Oct 21, 2023 | Hausrath | ½–½ | Gustafsson | Schachbundesliga | Catalan Opening: Closed | |
| Nov 27, 2022 | Palac | ½–½ | Gustafsson | Schachbundesliga | Ruy Lopez: Closed, Martinez Variation | |
| Nov 26, 2022 | Gustafsson | * | Grigorian | Schachbundesliga | Nimzo-Indian Defense: Normal Variation | |
| Oct 30, 2022 | Kamalsyah Muhammad | * | Gustafsson | 20th Bangkok Chess Club Open | ? | |
| Oct 28, 2022 | Wiwatanadate | * | Gustafsson | 20th Bangkok Chess Club Open | ? | |
| Oct 26, 2022 | Gustafsson | * | Saragih | 20th Bangkok Chess Club Open | ? | |
| Oct 25, 2022 | Ferriol | ½–½ | Gustafsson | 20th Bangkok Chess Club Open | ? | |
| Oct 24, 2022 | Gustafsson | 0–1 | Poh | 20th Bangkok Chess Club Open | Tarrasch Defense: Symmetrical Variation | |
| Oct 23, 2022 | Chan | 0–1 | Gustafsson | 20th Bangkok Chess Club Open | Nimzo-Indian Defense: Classical Variation | |
| Oct 22, 2022 | Gustafsson | 1–0 | Verheyden | 20th Bangkok Chess Club Open | Scandinavian Defense: Modern Variation, Gipslis Variation | |
| May 15, 2022 | Gustafsson | 1–0 | Zeller | Schachbundesliga | Benoni Defense: King's Pawn Line | |
| May 14, 2022 | Boensch | ½–½ | Gustafsson | Schachbundesliga | Nimzo-Indian Defense: Normal Variation | |
| Apr 10, 2022 | Coenen | 0–1 | Gustafsson | Schachbundesliga ab M�rz 22 | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Apr 9, 2022 | Gustafsson | 1–0 | Klein | Schachbundesliga ab M�rz 22 | Semi-Slav Defense: Accelerated Move Order | |
| Mar 6, 2022 | Lenaerts | ½–½ | Gustafsson | Bundesliga | Ruy Lopez: Marshall Attack, Modern Main Line | |
| Mar 5, 2022 | Gustafsson | ½–½ | Babula | Bundesliga | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Jul 4, 2021 | Keymer | ½–½ | Gustafsson | German Team Cup - Finals | Queen's Gambit Declined: Three Knights, Vienna Variation | |
| Jul 3, 2021 | Gustafsson | 1–0 | Richter | German Team Cup - Finals | English Opening: Symmetrical Variation, Full Symmetry Line | |
| Feb 23, 2020 | Gustafsson | ½–½ | Reuker | Schachbundesliga | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| Feb 8, 2020 | Pajeken | 0–1 | Gustafsson | Schachbundesliga | Slav Defense: Breyer Variation | |
| Dec 8, 2019 | Baltic | ½–½ | Gustafsson | Schachbundesliga | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Dec 7, 2019 | Gustafsson | 1–0 | Naumann | Schachbundesliga | English Opening: Symmetrical Variation, Rubinstein Variation | |
| Nov 24, 2019 | Osmanodja | 0–1 | Gustafsson | Schachbundesliga | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Nov 23, 2019 | Gustafsson | ½–½ | Perske | Schachbundesliga | East Indian Defense | |
| — | Gustafsson | 1–0 | Kyaw Myat Aung | 22nd Bangkok Chess Club Open 2025 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| — | Gustafsson | 1–0 | Tam | 22nd Bangkok Chess Club Open 2025 | King's Indian Defense: Orthodox Variation | |
| — | Gustafsson | ½–½ | Concio | 22nd Bangkok Chess Club Open 2025 | English Opening: King's English Variation, Four Knights Variation, Quiet Line | |
| — | Gustafsson | ½–½ | Horvath | 22nd Bangkok Chess Club Open 2025 | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | |
| — | Ahlam Rashed | 0–1 | Gustafsson | 22nd Bangkok Chess Club Open 2025 | Semi-Slav Defense: Accelerated Move Order | |
| — | Arca | 1–0 | Gustafsson | 22nd Bangkok Chess Club Open 2025 | King's Indian Attack | |
| — | Loncke | 0–1 | Gustafsson | 22nd Bangkok Chess Club Open 2025 | Queen's Gambit Declined: Austrian Defense | |
| — | Khamatgaleev | 0–1 | Gustafsson | 22nd Bangkok Chess Club Open 2025 | Sicilian Defense: Moscow Variation | |
