| Apr 5, 2025 | Wille | 1–0 | Hafner | Round 8: Wille, Thomas - Hafner, Robert | Réti Opening: Anglo-Slav Variation, New York System | |
| Apr 4, 2025 | Hafner | 1–0 | Schrems | Round 7: Hafner, Robert - Schrems, Hermann | Queen's Pawn Game: Colle System | |
| Mar 31, 2025 | Hafner | ½–½ | Heinbuch | Round 3: Hafner, Robert - Heinbuch, Detlef Ulrich | Indian Defense: Spielmann-Indian | |
| Mar 30, 2025 | Pieper | ½–½ | Hafner | Round 2: Pieper, Thomas, Dr. - Hafner, Robert | Caro-Kann Defense: Classical Variation, Spassky Variation | |
| Feb 15, 2025 | Marakovits | 1–0 | Hafner | Round 9: Marakovits, Nico - Hafner, Robert | English Opening: Caro-Kann Defensive System | |
| Feb 14, 2025 | Hafner | 1–0 | Bruns | Round 8: Hafner, Robert - Bruns, Kai-Christian | Queen's Pawn Game: Colle System | |
| Feb 11, 2025 | Mazi | ½–½ | Hafner | Round 5: Mazi, Leon - Hafner, Robert | Caro-Kann Defense: Classical Variation, Flohr Variation | |
| Feb 9, 2025 | Hafner | 0–1 | Akshat | Round 2: Hafner, Robert - Akshat, Khamparia | East Indian Defense | |
| Jul 15, 2023 | Hafner | 0–1 | Sucher | stveit | Queen's Pawn Game: Colle System | |
| Jul 15, 2023 | Keck | ½–½ | Hafner | stveit | Caro-Kann Defense: Accelerated Panov Attack | |
| Jul 14, 2023 | Hofstadler | 1–0 | Hafner | stveit | Slav Defense: Exchange Variation | |
| Jul 12, 2023 | Hafner | 1–0 | Warzycha | stveit | Queen's Pawn Game: Colle System | |
| Jul 12, 2023 | Hafner | 1–0 | Waddington | stveit | Indian Defense: Spielmann-Indian | |
| Jul 8, 2023 | Hafner | 0–1 | Hresc | stveit | East Indian Defense | |
| Jul 12, 2022 | Kozomara | 1–0 | Hafner | 41st St. Veit Jacques Lemans Open | Caro-Kann Defense: Classical Variation, Lobron System | |
| Jul 11, 2022 | Hafner | ½–½ | Rabensteiner | 41st St. Veit Jacques Lemans Open | Queen's Pawn Game: Colle System | |
| Jul 10, 2022 | Hafner | ½–½ | Fahrner | 41. St. Veiter Jacques-Lemans-Open 2022 | Queen's Pawn Game: Modern Defense | |
| Jul 10, 2022 | Leitner | ½–½ | Hafner | 41. St. Veiter Jacques-Lemans-Open 2022 | Réti Opening: Anglo-Slav Variation, New York System | |
| Jul 9, 2022 | Gschiel | ½–½ | Hafner | 41. St. Veiter Jacques-Lemans-Open 2022 | Slav Defense: Modern Line | |
