| Apr 3, 2026 | Haustein | ½–½ | Steven | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Sicilian Defense: Closed | |
| Apr 2, 2026 | Placke | 0–1 | Haustein | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Apr 1, 2026 | Haustein | 0–1 | Haverlandt | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Apr 1, 2026 | Holtwessels | 1–0 | Haustein | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | King's Indian Attack: Sicilian Variation | |
| Mar 31, 2026 | Haustein | 1–0 | Krueger | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | French Defense: Exchange Variation | |
| Mar 30, 2026 | Haustein | ½–½ | Freimuth | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Sicilian Defense: Closed, Fianchetto Variation | |
| Mar 30, 2026 | Klages | 0–1 | Haustein | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Ruy Lopez: Schliemann Defense, Exchange Variation | |
| Mar 28, 2026 | Rumiantsev | 0–1 | Haustein | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | French Defense: Advance Variation, Nimzowitsch System | |
| Mar 27, 2026 | Haustein | 0–1 | Muendoerfer | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Caro-Kann Defense: Apocalypse Attack | |
| Jan 5, 2026 | Rothenberg | 1–0 | Haustein | Runde 7: Rothenberg, Jannik - Haustein, Henry | Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line | |
| Jan 4, 2026 | Haustein | 1–0 | Oest | Runde 6: Haustein, Henry - Oest, Thorsten | Sicilian Defense: Moscow Variation | |
| Jan 4, 2026 | Traulsen | 0–1 | Haustein | Runde 5: Traulsen, Timo - Haustein, Henry | Queen's Pawn Game: London System | |
| Jan 3, 2026 | Direk | 1–0 | Haustein | Runde 4: Direk, Oguzhan - Haustein, Henry | Rapport-Jobava System | |
| Jan 3, 2026 | Haustein | 1–0 | Junge | Runde 3: Haustein, Henry - Junge, Julia Marie | Italian Game: Giuoco Piano, Greco's Attack | |
| Jan 2, 2026 | Buecklers | 1–0 | Haustein | Runde 2: Buecklers, Martin - Haustein, Henry | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jan 2, 2026 | Haustein | 0–1 | Ehlert | Runde 1: Haustein, Henry - Ehlert, Horst | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Jun 14, 2025 | Fritzsche | ½–½ | Haustein | DEM U14 2025 | Italian Game: Classical Variation | |
| Jun 13, 2025 | Haustein | ½–½ | Wartenberg | DEM U14 2025 | Sicilian Defense: Four Knights Variation | |
| Jun 12, 2025 | Haustein | 0–1 | Houben | DEM U14 2025 | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Jun 11, 2025 | Shevchenko | 1–0 | Haustein | DEM U14 2025 | Queen's Gambit Declined: Exchange Variation, Reshevsky Variation | |
| Jun 11, 2025 | Haustein | 1–0 | Lee | DEM U14 2025 | Sicilian Defense: Chekhover Variation | |
| Jun 10, 2025 | Haustein | 1–0 | Vakeel | DEM U14 2025 | Caro-Kann Defense: Apocalypse Attack | |
| Jun 9, 2025 | Leonhardt | ½–½ | Haustein | DEM U14 2025 | English Opening: Agincourt Defense, Catalan Defense | |
| Jun 8, 2025 | Haustein | 0–1 | Sasse | DEM U14 2025 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jun 8, 2025 | Stehning | 1–0 | Haustein | DEM U14 2025 | Italian Game: Classical Variation, Giuoco Pianissimo | |