| Jul 4, 2026 | Wakeham | 1–0 | Kallen | Round 9: Wakeham, Daniel - Kallen, Jonas | Queen's Pawn Game: Colle System, Anti-Colle | |
| Jul 3, 2026 | Kallen | 0–1 | Guagliano | Round 8: Kallen, Jonas - Guagliano, Lukas | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 2, 2026 | Carlstrom | 1–0 | Kallen | Round 7: Carlstrom, Niklas - Kallen, Jonas | Italian Game: Giuoco Pianissimo, Normal | |
| Jul 2, 2026 | Kallen | ½–½ | Strand | Round 6: Kallen, Jonas - Strand, Sixten | Sicilian Defense: Richter-Rauzer Variation | |
| Jul 1, 2026 | Dingertz | ½–½ | Kallen | Round 5: Dingertz, Erik - Kallen, Jonas | Réti Opening: Anglo-Slav Variation, with g3 | |
| Jun 30, 2026 | Kallen | ½–½ | Tiger-Norqvist | Round 4: Kallen, Jonas - Tiger-Norqvist, Axel | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| Jun 29, 2026 | Eklund | 0–1 | Kallen | Round 3: Eklund, Joel - Kallen, Jonas | Slav Defense: Quiet Variation, Schallopp Defense | |
| Jun 28, 2026 | Kallen | 1–0 | Nilsson | Round 2: Kallen, Jonas - Nilsson, Patrik 1978 | French Defense: Steinitz Variation, Boleslavsky Variation | |
| Jun 27, 2026 | Sundin | 1–0 | Kallen | Round 1: Sundin, Emanuel - Kallen, Jonas | Italian Game: Scotch Gambit, Max Lange Attack | |
| Feb 8, 2026 | Langhals | 0–1 | Kallen | Elite Hotels Open 2026 | Ruy Lopez: Open Berlin Defense, l'Hermet Variation | |
| Feb 8, 2026 | Dingertz | 1–0 | Kallen | Elite Hotels Open 2026 | Grünfeld Defense: Russian Variation | |
| Feb 7, 2026 | Kallen | 1–0 | Blixt | Elite Hotels Open 2026 | French Defense: Rubinstein Variation | |
| Feb 7, 2026 | Kallen | 1–0 | Eriksson | Elite Hotels Open 2026 | Philidor Defense: Exchange Variation | |
| Feb 6, 2026 | Nilsson | 1–0 | Kallen | Elite Hotels Open 2026 | Semi-Slav Defense | |
| Feb 6, 2026 | Kallen | ½–½ | Akesson | Elite Hotels Open 2026 | Sicilian Defense: Kramnik Variation | |
| Feb 6, 2026 | Hari | 0–1 | Kallen | Elite Hotels Open 2026 | Rapport-Jobava System | |
| Dec 30, 2025 | Kallen | ½–½ | Eriksson | Open rapid/standard chess tournament 27-30 dec | Sicilian Defense: Kramnik Variation | |
| Dec 29, 2025 | Solberg | ½–½ | Kallen | Open rapid/standard chess tournament 27-30 dec | Queen's Pawn Game: London System | |
| Dec 29, 2025 | Kallen | ½–½ | Evenshaug | Open rapid/standard chess tournament 27-30 dec | Sicilian Defense: Kramnik Variation | |
| Dec 27, 2025 | Carlsson | 1–0 | Kallen | Open rapid/standard chess tournament 27-30 dec | Italian Game: Classical Variation, Giuoco Pianissimo, with a5 | |
| Sep 8, 2024 | Kallen | 1–0 | Sandberg | The Kvibergspelen 2024 | Modern Defense | |
| Sep 8, 2024 | Ask | 0–1 | Kallen | The Kvibergspelen 2024 | Nimzo-Larsen Attack: Indian Variation | |
| Sep 7, 2024 | Simpson | ½–½ | Kallen | The Kvibergspelen 2024 | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Sep 6, 2024 | Kallen | 0–1 | Kleist | The Kvibergspelen 2024 | Sicilian Defense: Dragon Variation, Classical Variation | |
| Aug 4, 2024 | Kallen | 1–0 | Eriksson | Goteborg Open 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 4, 2024 | Degerfeldt | 1–0 | Kallen | Goteborg Open 2024 | East Indian Defense | |
| Aug 3, 2024 | Kallen | 1–0 | Andersson | Goteborg Open 2024 | Scotch Game: Classical Variation | |
| Aug 3, 2024 | Rasti | ½–½ | Kallen | Goteborg Open 2024 | Neo-Grünfeld Defense: Classical Variation, Original Defense | |
| Aug 2, 2024 | Kallen | 1–0 | Gallardo | Goteborg Open 2024 | Caro-Kann Defense: Exchange Variation | |
| Aug 2, 2024 | Kallen | 1–0 | Lindholm | Goteborg Open 2024 | Sicilian Defense: Lasker-Pelikan Variation | |
| Aug 2, 2024 | Utriainen | 1–0 | Kallen | Goteborg Open 2024 | Indian Defense: Anti-Grünfeld, Alekhine Variation | |
| Aug 2, 2024 | Lennerstad | 0–1 | Kallen | Goteborg Open 2024 | Grünfeld Defense: Three Knights Variation | |
| Apr 14, 2024 | Kallen | 0–1 | Johansson | Dalheimers Hus Rapid Open | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Apr 14, 2024 | Kallen | 1–0 | Kadunic | Dalheimers Hus Rapid Open | Indian Defense | |
| Apr 14, 2024 | Kallen | 0–1 | Svensson | Dalheimers Hus Rapid Open | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Apr 14, 2024 | Svenn | 0–1 | Kallen | Dalheimers Hus Rapid Open | Slav Defense: Quiet Variation, Schallopp Defense | |
| Apr 14, 2024 | Mohammadi | 1–0 | Kallen | Dalheimers Hus Rapid Open | Center Game: Berger Variation | |
| Dec 29, 2023 | Krantz | 1–0 | Kallen | Karlstad Open 2023 | Queen's Pawn Game: London System | |
| Dec 28, 2023 | Ernst | ½–½ | Kallen | Karlstad Open 2023 | Ruy Lopez: Marshall Attack, Modern Main Line | |
| Sep 16, 2023 | Kallen | 0–1 | Nygren | The Kvibergspelen 2023 | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Sep 16, 2023 | Ljung | ½–½ | Kallen | The Kvibergspelen 2023 | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Sep 15, 2023 | Kallen | 0–1 | Olsson | The Kvibergspelen 2023 | Sicilian Defense: Dragon Variation, Classical Variation | |
| — | Kallen | 1–0 | Lind | Karlstad Open 2023 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| — | Kallen | 0–1 | Soderstrom | Round 5: Kallen, Jonas - Soderstrom, Adrian | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| — | Kallen | ½–½ | Nyander | Round 7: Kallen, Jonas - Nyander, Joakim | Pirc Defense | |