| Jun 7, 2026 | Hartung | ½–½ | Hielscher | Round 5: Hartung, Katja - Hielscher, Ursula | Scandinavian Defense: Main Line | |
| Jun 6, 2026 | Kastl | 0–1 | Hartung | Round 4: Kastl, Lina - Hartung, Katja | Italian Game: Scotch Gambit, Max Lange Attack | |
| Jun 5, 2026 | Kraus | 0–1 | Hartung | Round 3: Kraus, Johanna - Hartung, Katja | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Jun 5, 2026 | Hartung | ½–½ | Iosif-Hoellenriegel | Round 2: Hartung, Katja - Iosif-Hoellenriegel, Daniela | French Defense: Tarrasch Variation | |
| Jun 4, 2026 | Hartung | 1–0 | Peglau | Round 1: Hartung, Katja - Peglau, Lorena | French Defense: Rubinstein Variation, Fort Knox Variation | |
| Jun 20, 2025 | Hartung | ½–½ | Werner | Round 3: Hartung, Katja - Werner, Rosalie | French Defense: Tarrasch Variation, Closed Variation, Main Line | |
| Feb 16, 2025 | Hartung | 0–1 | Nguyen | 2. Frauenbundesliga Ost | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Nov 12, 2023 | Hartung | 1–0 | Hopp | Deutschen Frauen-Schnellschachmeisterschaft 2023 | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Nov 12, 2023 | Birkholz | 1–0 | Hartung | Deutschen Frauen-Schnellschachmeisterschaft 2023 | Nimzo-Larsen Attack: Classical Variation | |
| Nov 12, 2023 | Albayrak | ½–½ | Hartung | Deutschen Frauen-Schnellschachmeisterschaft 2023 | Ruy Lopez: Closed | |
| Nov 12, 2023 | Rath | 1–0 | Hartung | Deutschen Frauen-Schnellschachmeisterschaft 2023 | English Opening: Agincourt Defense | |
| Nov 11, 2023 | Hartung | 1–0 | Stark | Deutschen Frauen-Schnellschachmeisterschaft 2023 | Italian Game: Scotch Gambit, Walbrodt-Baird Gambit | |
| Nov 11, 2023 | Hartung | 1–0 | Anissimova | Deutschen Frauen-Schnellschachmeisterschaft 2023 | Italian Game: Scotch Gambit, Walbrodt-Baird Gambit | |
| Nov 11, 2023 | Hartung | 0–1 | Wulf | Deutschen Frauen-Schnellschachmeisterschaft 2023 | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Nov 11, 2023 | Dolzhykova | 1–0 | Hartung | Deutschen Frauen-Schnellschachmeisterschaft 2023 | Vienna Game: Paulsen Variation | |
| Nov 11, 2023 | Khrapko | 1–0 | Hartung | Deutschen Frauen-Schnellschachmeisterschaft 2023 | Ruy Lopez: Closed | |
| Jun 11, 2023 | Hartung | 0–1 | Leib | German Women's State Team Championship | Caro-Kann Defense: Exchange Variation | |
| Jun 10, 2023 | Wellenreich | ½–½ | Hartung | German Women's State Team Championship | Semi-Slav Defense: Noteboom Variation | |
| Jun 9, 2023 | Hartung | 1–0 | Froehlich-Dill | German Women's State Team Championship | French Defense: Normal Variation | |
| Jun 9, 2023 | Trunz | 1–0 | Hartung | German Women's State Team Championship | Ruy Lopez: Morphy Defense, Caro Variation | |
| Jun 8, 2023 | Dietrich | 0–1 | Hartung | German Women's State Team Championship | Italian Game: Scotch Gambit, Janowski Defense | |