| Apr 2, 2026 | Pajeken | 1–0 | Forster | Grenke Chess Festival 2026 Open | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Jan 3, 2026 | Forster | 0–1 | Velicka | 36. Staufer Open 2026 A | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Jan 2, 2026 | Forster | ½–½ | Heinrich | 36. Staufer Open 2026 A | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Nov 23, 2025 | Hassemeier | 0–1 | Forster | Round 9: Hassemeier, Mika - Forster, Lukas | Grünfeld Defense: Exchange Variation, Nadanian Attack | |
| Nov 23, 2025 | Forster | 1–0 | Ziegenfuss | Round 8: Forster, Lukas - Ziegenfuss, Larissa | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Nov 23, 2025 | Hasselgruber | 0–1 | Forster | Round 7: Hasselgruber, Robert Ferenc - Forster, Lukas | Sicilian Defense: Alapin Variation | |
| Nov 23, 2025 | Forster | 0–1 | Henning | Round 6: Forster, Lukas - Henning, Marvin | Pterodactyl Defense: Eastern, Pterodactyl | |
| Nov 23, 2025 | Forster | 1–0 | Dvorsky | Round 5: Forster, Lukas - Dvorsky, Radovan | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Nov 23, 2025 | Kittler | 0–1 | Forster | Round 4: Kittler, Paavo Luis - Forster, Lukas | Rapport-Jobava System | |
| Nov 23, 2025 | Zimmermann | 1–0 | Forster | Round 3: Zimmermann, Felix - Forster, Lukas | King's Indian Attack: Symmetrical Defense | |
| Nov 23, 2025 | Forster | ½–½ | Knape | Round 2: Forster, Lukas - Knape, Albert | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Nov 23, 2025 | Garcia del Real Artero | 0–1 | Forster | Round 1: Garcia del Real Artero, Lazaro - Forster, Lukas | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Nov 22, 2025 | Dauner | 1–0 | Forster | Round 9: Dauner, Benedikt - Forster, Lukas | Sicilian Defense: Kronberger Variation | |
| Nov 22, 2025 | Forster | 1–0 | Striebeck | Round 8: Forster, Lukas - Striebeck, Enno | Sicilian Defense: Dragon Variation, Yugoslav Attack, Belezky Line | |
| Nov 22, 2025 | Zimmermann | 0–1 | Forster | Round 7: Zimmermann, Felix - Forster, Lukas | Grünfeld Defense: Three Knights Variation, Burille Variation | |
| Nov 22, 2025 | Forster | 1–0 | ter Stal | Round 6: Forster, Lukas - ter Stal, Lars | Ruy Lopez: Morphy Defense, Arkhangelsk Variation | |
| Nov 22, 2025 | Sedlmayr | 1–0 | Forster | Round 5: Sedlmayr, David - Forster, Lukas | Sicilian Defense: Najdorf Variation, English Attack | |
| Nov 22, 2025 | Forster | 1–0 | Kadel | Round 4: Forster, Lukas - Kadel, Julius Sebastian | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit | |
| Nov 22, 2025 | Forster | 1–0 | Laakmann | Round 2: Forster, Lukas - Laakmann, Jan | Ruy Lopez: Closed, Anti-Marshall | |
| Nov 22, 2025 | Kesselmeier | 0–1 | Forster | Round 1: Kesselmeier, Olivia - Forster, Lukas | Nimzo-Larsen Attack: Modern Variation | |
| Nov 19, 2025 | Koelle | 1–0 | Forster | Round 3: Koelle, Tobias - Forster, Lukas | Grünfeld Defense: Exchange Variation, Modern Exchange Variation | |
| Sep 17, 2023 | Forster | ½–½ | Einwiller | Stuttgarter SF - SF Pfullingen | Petrov's Defense: Nimzowitsch Attack | |
| May 31, 2023 | Forster | 0–1 | Souhardo Basak | 1st Munich Pfingst Open | Sicilian Defense: Najdorf Variation | |