| Apr 3, 2026 | Czubek | 1–0 | Rehn | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Slav Defense: Quiet Variation, Pin Defense | |
| Apr 2, 2026 | Roll | 1–0 | Czubek | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Rapport-Jobava System | |
| Apr 1, 2026 | Krueger | 1–0 | Czubek | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | King's Indian Defense: Makogonov Variation | |
| Apr 1, 2026 | Czubek | ½–½ | Schmidt | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Rubinstein Opening | |
| Mar 31, 2026 | Struebel | 0–1 | Czubek | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | English Opening: King's English Variation, Two Knights Variation | |
| Mar 30, 2026 | Czubek | 1–0 | Rumiantsev | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Englund Gambit: Main Line | |
| Mar 30, 2026 | Kulgemeyer | 1–0 | Czubek | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | French Defense: Classical Variation, Steinitz Variation | |
| Mar 29, 2026 | Czubek | ½–½ | Stoffers | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Queen's Gambit Declined | |
| Mar 28, 2026 | Buergener | 1–0 | Czubek | Landesjugendeinzelmeisterschaft in Niedersachsen U16 | Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange | |
| Apr 18, 2025 | Remizov | 0–1 | Czubek | Runde 9: Remizov, Kyryl - Czubek, Luca Sebastian | Zukertort Opening: Double Fianchetto Attack | |
| Apr 17, 2025 | Polikarpov | 0–1 | Czubek | Runde 8: Polikarpov, Matvii - Czubek, Luca Sebastian | King's Indian Defense: Normal Variation, Rare Defenses | |
| Apr 16, 2025 | Czubek | 0–1 | Buergener | Runde 7: Czubek, Luca Sebastian - Buergener, Richard | Queen's Gambit Declined: Three Knights Variation | |
| Apr 16, 2025 | Rinke | 0–1 | Czubek | Runde 6: Rinke, Alexander - Czubek, Luca Sebastian | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 15, 2025 | Czubek | 1–0 | Nicolas Kohrt | Runde 5: Czubek, Luca Sebastian - Nicolas Kohrt | Nimzo-Indian Defense: Classical Variation | |
| Apr 14, 2025 | Margaryan | 1–0 | Czubek | Runde 4: Margaryan, Mari - Czubek, Luca Sebastian | Pirc Defense: Classical Variation | |
| Apr 13, 2025 | Czubek | 0–1 | Klages | Runde 3: Czubek, Luca Sebastian - Klages, Jonas | King's Indian Defense: Petrosian Variation, Stein Defense | |
| Apr 13, 2025 | Placke | 0–1 | Czubek | Runde 2: Placke, Frederick - Czubek, Luca Sebastian | Indian Defense: Przepiorka Variation | |
| Apr 12, 2025 | Czubek | 0–1 | Levytskyi | Runde 1: Czubek, Luca Sebastian - Levytskyi, Oleksandr | Slav Defense: Exchange Variation | |
| May 25, 2024 | Albrecht | ½–½ | Czubek | ODJM C 2024 | Queen's Indian Defense: Classical Variation, Traditional Variation, Nimzowitsch Line | |
| May 24, 2024 | Czubek | 1–0 | Schmidt | ODJM C 2024 | Slav Defense: Exchange Variation | |
| May 23, 2024 | Racky | ½–½ | Czubek | ODJM C 2024 | London System | |
| May 22, 2024 | Czubek | 1–0 | Mahr | ODJM C 2024 | Queen's Gambit Declined: Neo-Orthodox Variation, Main Line | |
| May 22, 2024 | Bharathula | ½–½ | Czubek | ODJM C 2024 | Bishop's Opening: Vienna Hybrid | |
| May 21, 2024 | Czubek | 0–1 | Frydel | ODJM C 2024 | Slav Defense | |
| May 20, 2024 | Staudt | 0–1 | Czubek | ODJM C 2024 | Center Game: Paulsen Attack Variation | |
| May 19, 2024 | Czubek | 0–1 | Polster | ODJM C 2024 | Slav Defense | |
| May 19, 2024 | Arndt | ½–½ | Czubek | ODJM C 2024 | Indian Defense | |
| — | Czubek | ½–½ | Naumann | Round 2: Czubek, Luca Sebastian - Naumann, Martin | Dutch Defense | |
| — | Czubek | ½–½ | Hoeggemeier | Round 4: Czubek, Luca Sebastian - Hoeggemeier, Anton Heinrich | Slav Defense: Three Knights Variation | |
| — | Czubek | ½–½ | Hemme | Round 7: Czubek, Luca Sebastian - Hemme, Gregory | King's Indian Defense: Orthodox Variation | |
| — | Bochmann | 0–1 | Czubek | Round 1: Bochmann, Bradley Mike - Czubek, Luca Sebastian | London System | |
| — | Lasschuit | 1–0 | Czubek | Round 3: Lasschuit, Rene - Czubek, Luca Sebastian | English Opening: Mikenas-Carls Variation | |
| — | Neumann | 0–1 | Czubek | Round 5: Neumann, Mattis - Czubek, Luca Sebastian | Sicilian Defense: Smith-Morra Gambit Accepted | |
| — | Koenig | 1–0 | Czubek | Round 6: Koenig, Felix - Czubek, Luca Sebastian | Indian Defense | |
