| Jan 5, 2026 | Schiller | 1–0 | Kozik | Runde 7: Schiller, Jan-Hendrik - Kozik, Andreas | Zukertort Opening | |
| Jan 4, 2026 | Kozik | ½–½ | Aden | Runde 6: Kozik, Andreas - Aden, Meino | Queen's Pawn Game: Accelerated London System, Steinitz Countergambit | |
| Jan 4, 2026 | Soellig | 1–0 | Kozik | Runde 5: Soellig, Martin - Kozik, Andreas | French Defense: Tarrasch Variation, Chistyakov Defense | |
| Jan 3, 2026 | Wilmink | 0–1 | Kozik | Runde 4: Wilmink, Anna - Kozik, Andreas | French Defense: Advance Variation, Euwe Variation | |
| Jan 3, 2026 | Kozik | ½–½ | Burnus | Runde 3: Kozik, Andreas - Burnus, Finn Crispin | Queen's Pawn Game: Accelerated London System | |
| Jan 2, 2026 | Knopp | 0–1 | Kozik | Runde 2: Knopp, Jan Niklas - Kozik, Andreas | Queen's Gambit Declined: Modern Variation, Normal Line | |
| Jan 2, 2026 | Kozik | 0–1 | Schumann | Runde 1: Kozik, Andreas - Schumann, Steffen | Queen's Pawn Game: Torre Attack, Grünfeld Variation, Main Line | |
| Jan 5, 2025 | Nuerenberg | ½–½ | Kozik | Round 7: Nuerenberg, Marius - Kozik, Andreas | French Defense: Advance Variation, Paulsen Attack | |
| Jan 4, 2025 | Kozik | ½–½ | Langer | Round 6: Kozik, Andreas - Langer, Michael S. | Queen's Pawn Game: Accelerated London System | |
| Jan 4, 2025 | Ludwig | ½–½ | Kozik | Round 5: Ludwig, Bernard, Dr. - Kozik, Andreas | Queen's Gambit Declined: Three Knights Variation | |
| Jan 3, 2025 | Kozik | 0–1 | Boerma | Round 3: Kozik, Andreas - Boerma, Daniel | Indian Defense: London System | |
| Jan 3, 2025 | Schulze | 0–1 | Kozik | Round 4: Schulze, Tim - Kozik, Andreas | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line | |
| Jan 2, 2025 | Kozik | 0–1 | Loecken | Round 1: Kozik, Andreas - Loecken, Siegfried | Benoni Defense: Classical Variation, Czerniak Defense | |
| Jan 2, 2025 | Nolting | ½–½ | Kozik | Round 2: Nolting, Dennis - Kozik, Andreas | French Defense: Schlechter Variation | |
| Jun 9, 2024 | Kozik | 0–1 | Bade | Round 5: Kozik, Andreas - Bade, Hans-Juergen | Pseudo Queen's Indian Defense | |
| Jun 9, 2024 | Kozik | 1–0 | Tietje | Round 4: Kozik, Andreas - Tietje, Marten | Queen's Pawn Game: London System | |
| Jun 8, 2024 | Stotyn | 1–0 | Kozik | Round 3: Stotyn, Fabian - Kozik, Andreas | French Defense: Paulsen Variation | |
| Jun 8, 2024 | Kozik | 1–0 | Shalovylo | Round 2: Kozik, Andreas - Shalovylo, Yuriy | Dutch Defense | |
| Jun 7, 2024 | Tonndorf | 0–1 | Kozik | Round 1: Tonndorf, Matthias - Kozik, Andreas | French Defense: Advance Variation, Paulsen Attack | |
| Nov 17, 2024 | Kozik | 0–1 | Wibmer | Round 4: Kozik, Andreas - Wibmer, Michael | Torre Attack: Fianchetto Defense | |
| Nov 17, 2024 | Vormann | ½–½ | Kozik | Round 5: Vormann, Dirk - Kozik, Andreas | Queen's Pawn Game: Accelerated London System | |
| Nov 16, 2024 | Kozik | 1–0 | Shevchenko | Round 2: Kozik, Andreas - Shevchenko, Igor | Indian Defense: London System | |
| Nov 16, 2024 | Hlavchev | 1–0 | Kozik | Round 3: Hlavchev, Ivan - Kozik, Andreas | French Defense: Advance Variation, Paulsen Attack | |
| Nov 15, 2024 | Peters | 1–0 | Kozik | Round 1: Peters, Tom - Kozik, Andreas | French Defense: Paulsen Variation | |
| Jan 7, 2023 | Kozik | ½–½ | Bulygin | Lower Saxony Championship | A | Indian Defense | |
| Jan 7, 2023 | Nizamova | ½–½ | Kozik | Lower Saxony Championship | A | French Defense: Advance Variation, Euwe Variation | |
| Jan 5, 2023 | Kozik | 1–0 | Moseler | Lower Saxony Championship | A | Trompowsky Attack | |