| Apr 12, 2026 | Florstedt | 1–0 | Foerster | Round 9: Florstedt, Johannes - Foerster, Jonas | Pirc Defense | |
| Apr 11, 2026 | Foerster | 0–1 | Eilenberg | Round 8: Foerster, Jonas - Eilenberg, Jonas | King's Indian Attack | |
| Apr 10, 2026 | Foerster | 1–0 | Nogly | Round 7: Foerster, Jonas - Nogly, Christoph | Four Knights Game: Scotch Variation Accepted | |
| Apr 9, 2026 | Jahnz | ½–½ | Foerster | Round 6: Jahnz, Fabian - Foerster, Jonas | Sicilian Defense: Alapin Variation | |
| Apr 8, 2026 | Foerster | 0–1 | Vavulin | Round 5: Foerster, Jonas - Vavulin, Maxim | Pirc Defense | |
| Apr 7, 2026 | Foerster | ½–½ | Matviienko | Round 4: Foerster, Jonas - Matviienko, Mykhailo | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| Apr 6, 2026 | Gersemann | 0–1 | Foerster | Round 3: Gersemann, Karl - Foerster, Jonas | Modern Defense: Two Knights Variation | |
| Apr 5, 2026 | Foerster | 1–0 | Chakhalov | Round 2: Foerster, Jonas - Chakhalov, Mikael | Zukertort Opening | |
| Apr 4, 2026 | Krefenstein | ½–½ | Foerster | Round 1: Krefenstein, Sergej - Foerster, Jonas | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Dec 30, 2025 | Foerster | 1–0 | Strache | Round 7: Foerster, Jonas - Strache, Michael | Kangaroo Defense | |
| Dec 29, 2025 | Krefenstein | 0–1 | Foerster | Round 6: Krefenstein, Sergej - Foerster, Jonas | Nimzo-Indian Defense: Sämisch Variation | |
| Dec 28, 2025 | Pathak | ½–½ | Foerster | Round 4: Pathak, Raghav - Foerster, Jonas | Caro-Kann Defense | |
| Dec 28, 2025 | Foerster | ½–½ | Schletter | Round 3: Foerster, Jonas - Schletter, Felix | French Defense: Exchange Variation | |
| Apr 27, 2025 | Foerster | 1–0 | Brustkern | Round 9: Foerster, Jonas - Brustkern, Juergen | Semi-Slav Defense: Noteboom Variation | |
| Apr 26, 2025 | Vollmar | 0–1 | Foerster | Round 8: Vollmar, Timo - Foerster, Jonas | Caro-Kann Defense: Maróczy Variation | |
| Apr 25, 2025 | Foerster | ½–½ | Pererva | Round 7: Foerster, Jonas - Pererva, Viktor | Sicilian Defense: Modern Variations | |
| Apr 24, 2025 | Caglar | 0–1 | Foerster | Round 6: Caglar, Ertan - Foerster, Jonas | Pirc Defense | |
| Apr 23, 2025 | Foerster | 0–1 | Heerde | Round 5: Foerster, Jonas - Heerde, Thomas | Benko Gambit Declined: Main Line | |
| Apr 22, 2025 | Berger | 1–0 | Foerster | Round 4: Berger, Steve - Foerster, Jonas | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 21, 2025 | Florstedt | 1–0 | Foerster | Round 3: Florstedt, Johannes - Foerster, Jonas | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 20, 2025 | Foerster | 0–1 | Ahmadinia | Round 2: Foerster, Jonas - Ahmadinia, Ebrahim | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Apr 19, 2025 | Foerster | 1–0 | Richter | Round 1: Foerster, Jonas - Richter, Michael | Semi-Slav Defense: Stoltz Variation, Shabalov Attack | |
| Jul 28, 2024 | Foerster | 1–0 | Weber | Round 9: Foerster, Jonas - Weber, Daniel | King's Indian Defense: Orthodox Variation, Classical System | |
| Jul 27, 2024 | Vogel | 1–0 | Foerster | Round 8: Vogel, Constantin - Foerster, Jonas | King's Indian Defense: Fianchetto Variation, Panno Variation | |
| Jul 26, 2024 | Foerster | ½–½ | Niehaus | Round 7: Foerster, Jonas - Niehaus, Frank | Four Knights Game: Scotch Variation Accepted | |
| Jul 25, 2024 | Strehse | ½–½ | Foerster | Round 6: Strehse, Nelson - Foerster, Jonas | Pirc Defense: Classical Variation, Quiet System | |
| Jul 23, 2024 | Choukri | 0–1 | Foerster | Round 4: Choukri, Adel - Foerster, Jonas | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jul 22, 2024 | Foerster | 1–0 | Zeitz | Round 3: Foerster, Jonas - Zeitz, Philip, Dr. | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Jul 21, 2024 | Matthes | 0–1 | Foerster | Round 2: Matthes, Benjamin - Foerster, Jonas | Caro-Kann Defense: Two Knights Attack | |
| Jul 20, 2024 | Foerster | 1–0 | Bonnez | Round 1: Foerster, Jonas - Bonnez, Finn | Philidor Defense: Exchange Variation | |
| Jul 20, 2024 | Foerster | 0–1 | Richter | Round 5: Foerster, Jonas - Richter, Michael | Queen's Pawn Game: Zukertort Variation | |
| Apr 7, 2024 | Lagunow | 1–0 | Foerster | Round 9: Lagunow, Raphael - Foerster, Jonas | Benoni Defense: Fianchetto Variation, Hastings Defense, Main Line | |
| Apr 6, 2024 | Foerster | ½–½ | Polzin | Round 8: Foerster, Jonas - Polzin, Rainer | Sicilian Defense: French Variation | |
| Apr 5, 2024 | Foerster | 1–0 | Jahnz | Round 7: Foerster, Jonas - Jahnz, Laurin | Queen's Gambit Accepted: Classical Defense, Steinitz Variation, Development Variation | |
| Apr 3, 2024 | Thiede | 0–1 | Foerster | Round 6: Thiede, Lars - Foerster, Jonas | King's Indian Attack: Yugoslav Variation | |
| Apr 3, 2024 | Dubessay | 0–1 | Foerster | Round 5: Dubessay, Bastien - Foerster, Jonas | Caro-Kann Defense: Two Knights Attack | |
| Apr 1, 2024 | Muse | 1–0 | Foerster | Round 3: Muse, Drazen - Foerster, Jonas | Zukertort Opening | |
| Mar 31, 2024 | Foerster | ½–½ | Florstedt | Round 2: Foerster, Jonas - Florstedt, Johannes | Neo-Grünfeld Defense: Delayed Exchange Variation | |