| Jun 30, 2026 | Sandberg | ½–½ | Kleist | Round 4: Sandberg, Lucas - Kleist, Axel | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Jun 29, 2026 | Valcu | 1–0 | Kleist | Round 3: Valcu, Lavinia - Kleist, Axel | King's Indian Defense: Makogonov Variation | |
| Jun 28, 2026 | Kleist | 0–1 | Ral Lustig | Round 2: Kleist, Axel - Ral Lustig, Melvin | Italian Game: Giuoco Piano | |
| Jun 27, 2026 | Morell | ½–½ | Kleist | Round 1: Morell, Oscar - Kleist, Axel | French Defense: Two Knights Variation | |
| Feb 8, 2026 | Liu | 1–0 | Kleist | Elite Hotels Open 2026 | Dutch Defense: Classical Variation | |
| Feb 8, 2026 | Kleist | 1–0 | Olsson | Elite Hotels Open 2026 | Italian Game: Giuoco Piano | |
| Feb 7, 2026 | Dingertz | ½–½ | Kleist | Elite Hotels Open 2026 | Old Indian Defense | |
| Feb 7, 2026 | Kleist | 1–0 | Wernberg | Elite Hotels Open 2026 | French Defense: Advance Variation, Paulsen Attack | |
| Feb 6, 2026 | Hari | 0–1 | Kleist | Elite Hotels Open 2026 | Rapport-Jobava System, with e6 | |
| Feb 6, 2026 | Kleist | 0–1 | Vernersson | Elite Hotels Open 2026 | Caro-Kann Defense: Advance Variation, Bayonet Attack | |
| Feb 6, 2026 | Helin | 0–1 | Kleist | Elite Hotels Open 2026 | French Defense: Advance Variation, Euwe Variation | |
| Nov 23, 2025 | Yang | 0–1 | Kleist | The Juniorallsvenskan 2025, Division I | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Nov 23, 2025 | Stedman | 0–1 | Kleist | The Juniorallsvenskan 2025, Division I | Italian Game: Classical Variation, Giuoco Pianissimo, Albin Variation | |
| Nov 22, 2025 | Enholm | 0–1 | Kleist | The Juniorallsvenskan 2025, Division I | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Nov 22, 2025 | Kleist | 1–0 | Lindholm | The Juniorallsvenskan 2025, Division I | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Nov 22, 2025 | Ljung | 1–0 | Kleist | The Juniorallsvenskan 2025, Division I | Old Indian Defense: Janowski Variation, Fianchetto Variation | |
| Oct 12, 2025 | Kleist | 0–1 | Religa | Skol-SM 2025 Kalmar | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Oct 12, 2025 | Kleist | * | Religa | Skol-SM 2025 Kalmar | ? | |
| Oct 12, 2025 | Kleist | ½–½ | Langhals | Skol-SM 2025 Kalmar | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Oct 11, 2025 | Reinsch | 0–1 | Kleist | Skol-SM 2025 Kalmar | Catalan Opening: Closed | |
| Oct 11, 2025 | Kleist | 1–0 | Larsson | Skol-SM 2025 Kalmar | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Oct 11, 2025 | Kleist | 0–1 | Willstedt | Skol-SM 2025 Kalmar | French Defense: Advance Variation, Main Line | |
| Oct 10, 2025 | Rehnberg | 1–0 | Kleist | Skol-SM 2025 Kalmar | Hungarian Opening: Indian Defense | |
| Sep 8, 2024 | Bengtsson | 1–0 | Kleist | The Kvibergspelen 2024 | Sicilian Defense: Dragon Variation | |
| Sep 6, 2024 | Kleist | 0–1 | Rajcevski | The Kvibergspelen 2024 | Sicilian Defense: Mengarini Variation | |
| Sep 6, 2024 | Kleist | 0–1 | Karlsson | The Kvibergspelen 2024 | Sicilian Defense: Mengarini Variation | |
| Sep 6, 2024 | Kallen | 0–1 | Kleist | The Kvibergspelen 2024 | Sicilian Defense: Dragon Variation, Classical Variation | |
| — | Kleist | 0–1 | Briem | Nordic Youth Chess Championship | Italian Game: Giuoco Piano | |
| — | Kleist | ½–½ | Bech | Nordic Youth Chess Championship | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| — | Kleist | 0–1 | Domalchuk-Jonasson | Nordic Youth Chess Championship | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line | |
| — | Kleist | 1–0 | Johansson | Nordic Youth Chess Championship | Caro-Kann Defense: Advance Variation, Bayonet Attack | |
| — | Kleist | 0–1 | Ollen | Avenyn Open 2025 | Sicilian Defense: Lasker-Pelikan Variation | |
| — | Kleist | ½–½ | Muntean | Avenyn Open 2025 | King's Indian Defense: Orthodox Variation | |
| — | Andries | ½–½ | Kleist | Nordic Youth Chess Championship | Ruy Lopez: Morphy Defense, Schliemann Defense Deferred | |
| — | Amundsen | 0–1 | Kleist | Nordic Youth Chess Championship | King's Indian Attack: Symmetrical Defense | |
