| Apr 2, 2026 | Wiessner | 0–1 | Poetscher | Round 7: Wiessner, Johanna - Poetscher, Katharina | Caro-Kann Defense: Tartakower Variation | |
| Apr 1, 2026 | Wiessner | * | Sammer | Round 6: Wiessner, Johanna - Sammer, Alisa | ? | |
| Mar 31, 2026 | Busuioc | * | Wiessner | Round 5: Busuioc, Amelie - Wiessner, Johanna | ? | |
| Mar 31, 2026 | Wiessner | * | Langeder | Round 4: Wiessner, Johanna - Langeder, Pia | ? | |
| Mar 30, 2026 | Batchenko | 1–0 | Wiessner | Round 3: Batchenko, Velena - Wiessner, Johanna | Four Knights Game: Scotch Variation Accepted | |
| Mar 29, 2026 | Buelow | * | Wiessner | Round 1: Buelow, Mattea - Wiessner, Johanna | ? | |
| Mar 18, 2026 | Wiessner | 0–1 | Luca | Round 2: Wiessner, Johanna - Luca, Iana | Caro-Kann Defense: Classical Variation, Seirawan Variation | |
| Jun 22, 2025 | Wiessner | 1–0 | Sammer | Round 7: Wiessner, Johanna - Sammer, Alisa | Scandinavian Defense: Gubinsky-Melts Defense | |
| Jun 21, 2025 | Lahl | 1–0 | Wiessner | Round 6: Lahl, Sophie - Wiessner, Johanna | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Jun 20, 2025 | Haslinger | ½–½ | Wiessner | Round 4: Haslinger, Stella Valentina - Wiessner, Johanna | Grünfeld Defense: Exchange Variation, Spassky Variation | |
| Jun 20, 2025 | Wiessner | 1–0 | Domig | Round 3: Wiessner, Johanna - Domig, Christina | Scotch Game: Schmidt Variation | |
| Jun 19, 2025 | Aboulenein-Djamshidian | 1–0 | Wiessner | Round 2: Aboulenein-Djamshidian, Kimia - Wiessner, Johanna | London System | |
| Jun 19, 2025 | Wiessner | 1–0 | Geworgyan | Round 1: Wiessner, Johanna - Geworgyan, Daniela | Alekhine Defense: Scandinavian Variation, Geschev Gambit | |
| Jun 19, 2025 | Wiessner | 1–0 | Brunner | Round 5: Wiessner, Johanna - Brunner, Josephina Akiko | Vienna Game: Falkbeer Variation | |
| Apr 17, 2025 | Wiessner | 1–0 | Donets | Round 7: Wiessner, Johanna - Donets, Alina | Scandinavian Defense: Main Line, Mieses Variation | |
| Apr 16, 2025 | Huber | 0–1 | Wiessner | Round 6: Huber, Elisa - Wiessner, Johanna | Zukertort Opening: Quiet System | |
| Apr 15, 2025 | Wiessner | ½–½ | Wiessner | Round 4: Wiessner, Johanna - Wiessner, Elisabeth | Italian Game: Classical Variation, Greco Gambit, Traditional Line | |
| Apr 15, 2025 | Poetscher | ½–½ | Wiessner | Round 5: Poetscher, Katharina - Wiessner, Johanna | Ruy Lopez: Fianchetto Defense | |
| Apr 14, 2025 | Wiessner | 1–0 | Giselbrecht | Round 3: Wiessner, Johanna - Giselbrecht, Leefke | Sicilian Defense: Old Sicilian | |
| Apr 13, 2025 | Wiessner | ½–½ | Theurl | Round 1: Wiessner, Johanna - Theurl, Rafaela | Scotch Game | |
| Aug 22, 2024 | Wiessner | 0–1 | Kaminska | EYCC 2024 - G12 | Center Game: Paulsen Attack Variation | |
| Jun 2, 2024 | Megha Varshini D | 0–1 | Wiessner | Round 7: Megha Varshini D - Wiessner, Johanna | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Jun 1, 2024 | Wiessner | ½–½ | Haslinger | Round 6: Wiessner, Johanna - Haslinger, Stella Valentina | Caro-Kann Defense: Goldman Variation | |
| Jun 1, 2024 | Jin | 0–1 | Wiessner | Round 5: Jin, Emilie - Wiessner, Johanna | Sicilian Defense: Bowdler Attack | |
| May 31, 2024 | Wiessner | 0–1 | Donets | Round 4: Wiessner, Johanna - Donets, Alina | Sicilian Defense | |
| May 31, 2024 | Wiessner | 1–0 | Spadi | Round 3: Wiessner, Johanna - Spadi, Eliana | Sicilian Defense: Old Sicilian | |
| May 30, 2024 | Egshiglen Gantomor | 0–1 | Wiessner | Round 2: Egshiglen Gantomor - Wiessner, Johanna | Italian Game: Giuoco Pianissimo | |
| May 30, 2024 | Wiessner | 1–0 | Geworgyan | Round 1: Wiessner, Johanna - Geworgyan, Daniela | Scotch Game: Schmidt Variation | |
