| Dec 5, 2025 | Rahmanidis | 0–1 | Kassios | Round 6: Rahmanidis, Petros - Kassios, Dimitrios | Zukertort Opening: Reversed Grünfeld | |
| Dec 5, 2025 | Kazantzoglou | ½–½ | Rahmanidis | Round 5: Kazantzoglou, Stefanos - Rahmanidis, Petros | English Opening: Agincourt Defense, Bogoljubow Defense | |
| Dec 5, 2025 | Rahmanidis | 1–0 | Lafkidis | Round 4: Rahmanidis, Petros - Lafkidis, Apostolos | Réti Opening: Anglo-Slav Variation, with g3 | |
| Dec 5, 2025 | Vassis | 0–1 | Rahmanidis | Round 3: Vassis, Michail - Rahmanidis, Petros | Nimzo-Larsen Attack: Classical Variation | |
| Jul 4, 2025 | Papaioannou | ½–½ | Rahmanidis | Round 7: Papaioannou, Dimitrios - Rahmanidis, Petros | Four Knights Game: Glek System | |
| Jul 3, 2025 | Rahmanidis | 1–0 | Trimitzios | Round 6: Rahmanidis, Petros - Trimitzios, Petros | English Opening: Agincourt Defense, Catalan Defense Accepted | |
| Jul 3, 2025 | Rahmanidis | 0–1 | Sandalakis | Round 4: Rahmanidis, Petros - Sandalakis, Angelos | Sicilian Defense: Najdorf Variation | |
| Jul 3, 2025 | Papasimakopoulos | 1–0 | Rahmanidis | Round 2: Papasimakopoulos, Alexandros - Rahmanidis, Petros | Indian Defense: Przepiorka Variation | |
| Jul 3, 2025 | Rahmanidis | 1–0 | Fragkos | Round 5: Rahmanidis, Petros - Fragkos, Vasileios | Sicilian Defense: Open | |
| Dec 15, 2024 | Rahmanidis | 1–0 | Patrelakis | 10th Open Rapid Tournament, by SOXalandriou | French Defense: Advance Variation, Paulsen Attack | |
| Jul 10, 2024 | Rahmanidis | 1–0 | Kymionis | Greek League 2024 | English Opening: Neo-Catalan | |
| Jul 8, 2024 | Rahmanidis | 0–1 | Ladopoulos | Greek League 2024 | French Defense: Advance Variation, Euwe Variation | |
| Jul 7, 2024 | Hristodoulou | 1–0 | Rahmanidis | Greek League 2024 | Sicilian Defense: Chekhover Variation | |
| Jul 6, 2024 | Rahmanidis | 0–1 | Naoum | Greek League 2024 | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Jul 5, 2024 | Banikas | ½–½ | Rahmanidis | Greek League 2024 | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| May 2, 2024 | Rahmanidis | 0–1 | Szpar | Round 9: Rahmanidis, Petros - Szpar, Milosz | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line | |
| May 1, 2024 | Kosakowski | 1–0 | Rahmanidis | Round 8: Kosakowski, Jakub - Rahmanidis, Petros | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Apr 30, 2024 | Rahmanidis | 0–1 | Singh Sahib | Round 7: Rahmanidis, Petros - Singh Sahib | King's Indian Attack | |
| Apr 29, 2024 | Kotronias | 1–0 | Rahmanidis | Round 6: Kotronias, Vasilios - Rahmanidis, Petros | Sicilian Defense: Four Knights Variation | |
| Apr 28, 2024 | Rahmanidis | ½–½ | Tripathi Adarsh | Round 5: Rahmanidis, Petros - Tripathi Adarsh | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Apr 28, 2024 | Kapnisis | 1–0 | Rahmanidis | Round 4: Kapnisis, Spyridon - Rahmanidis, Petros | King's Indian Attack | |
| Apr 27, 2024 | Rahmanidis | 0–1 | Krallis | Round 3: Rahmanidis, Petros - Krallis, Christos | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 26, 2024 | Nikolaidis | 1–0 | Rahmanidis | Round 2: Nikolaidis, Ioannis - Rahmanidis, Petros | Queen's Gambit Declined: Three Knights Variation | |
| Apr 25, 2024 | Rahmanidis | 0–1 | Alexakis | Round 1: Rahmanidis, Petros - Alexakis, Dimitris | Sicilian Defense: Taimanov Variation | |
| Mar 18, 2024 | Markidis | ½–½ | Rahmanidis | Round 7: Markidis, Konstantinos - Rahmanidis, Petros | Sicilian Defense: Moscow Variation | |
| Mar 17, 2024 | Rahmanidis | 1–0 | Boutikos | Round 6: Rahmanidis, Petros - Boutikos, Eleftherios | English Opening: Agincourt Defense, Catalan Defense, Semi-Slav Defense | |
| Mar 17, 2024 | Kalogridis | ½–½ | Rahmanidis | Round 5: Kalogridis, Themistoklis - Rahmanidis, Petros | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 16, 2024 | Rahmanidis | ½–½ | Alexandri | Round 4: Rahmanidis, Petros - Alexandri, Dimitra | Italian Game: Giuoco Pianissimo, Normal | |
| Mar 16, 2024 | Krallis | ½–½ | Rahmanidis | Round 3: Krallis, Christos - Rahmanidis, Petros | French Defense: Classical Variation, Burn Variation, Morozevich Line | |
| Mar 15, 2024 | Rahmanidis | 1–0 | Bougas | Round 2: Rahmanidis, Petros - Bougas, Georgios | Réti Opening: Anglo-Slav Variation, Bogoljubow Variation, Stonewall Line | |
| Mar 14, 2024 | Mantazis | 0–1 | Rahmanidis | Round 1: Mantazis, Georgios Rafail - Rahmanidis, Petros | Sicilian Defense: Scheveningen Variation, Modern Variation | |
| Oct 25, 2024 | Tustanowski | 1–0 | Rahmanidis | Round 7: Tustanowski, Mateusz - Rahmanidis, Petros | Rapport-Jobava System | |
| Oct 24, 2024 | Rahmanidis | ½–½ | Pietruszewski | Round 6: Rahmanidis, Petros - Pietruszewski, Marcin | English Opening: Neo-Catalan | |
| Oct 24, 2024 | Pedersen | 0–1 | Rahmanidis | Round 5: Pedersen, Finn - Rahmanidis, Petros | London System | |
| Oct 23, 2024 | Rahmanidis | 1–0 | Andersen | Round 4: Rahmanidis, Petros - Andersen, Hans-Christoph | Caro-Kann Defense: Exchange Variation | |
| Oct 22, 2024 | Rahmanidis | 1–0 | Pirs | Round 2: Rahmanidis, Petros - Pirs, Matjaz | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Oct 22, 2024 | Flaata | 0–1 | Rahmanidis | Round 3: Flaata, Alexander R. - Rahmanidis, Petros | Sicilian Defense: Classical Variation | |
| Oct 21, 2024 | Dino | 0–1 | Rahmanidis | Round 1: Dino, Giuseppe - Rahmanidis, Petros | Hungarian Opening | |
| Mar 12, 2023 | Pultinevicius | 1–0 | Rahmanidis | European Championship | ? | |
| Mar 4, 2023 | Grigoriants | * | Rahmanidis | European Championship | ? | |
| Mar 3, 2023 | Rahmanidis | ½–½ | Lagarde | European Championship | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack | |
| Aug 2, 2022 | Zawadzka | 1–0 | Rahmanidis | 31st Internation Chess Tournament | Sicilian Defense: Richter-Rauzer Variation | |
| Aug 1, 2022 | Kanakaris | ½–½ | Rahmanidis | 31st Internation Chess Tournament | King's Indian Attack | |
| Jul 31, 2022 | Rahmanidis | 1–0 | Maltsevskaya | 31st Internation Chess Tournament | Sicilian Defense: Richter-Rauzer Variation, Classical Variation | |
| Jul 30, 2022 | Spyratos | ½–½ | Rahmanidis | 31st Internation Chess Tournament | Sicilian Defense: Moscow Variation | |
| Jul 29, 2022 | Rahmanidis | 1–0 | Santiagoa | 31st Internation Chess Tournament | Pirc Defense: Classical Variation, Quiet System, Parma Defense | |
| Jul 28, 2022 | Ladopoulos | 1–0 | Rahmanidis | 31st Internation Chess Tournament | Sicilian Defense: Classical Variation, Anti-Sozin Variation | |
| Jul 27, 2022 | Rahmanidis | 0–1 | Kilic | 31st Internation Chess Tournament | Sicilian Defense: Najdorf Variation | |
| Jul 27, 2022 | Trimitzios | 0–1 | Rahmanidis | 31st Internation Chess Tournament | Queen's Pawn Game: Zukertort Variation | |
| Jul 26, 2022 | Rahmanidis | 1–0 | Schroeder | 31st Internation Chess Tournament | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Jul 24, 2022 | Hristodoulou | 1–0 | Rahmanidis | 15th Paleochora Open | ? | |
| Jul 23, 2022 | Rahmanidis | ½–½ | Bernadskiy | 15th Paleochora Open | Sicilian Defense: Taimanov Variation | |
| Jul 22, 2022 | Antic | ½–½ | Rahmanidis | 15th Paleochora Open | Queen's Pawn Game: Zukertort Variation | |
| Jul 20, 2022 | Vozinaki | * | Rahmanidis | 15th Paleochora Open | ? | |
| Jul 19, 2022 | Rahmanidis | 0–1 | Barp | 15th Paleochora Open | ? | |
| Jul 18, 2022 | Rahmanidis | 0–1 | Grigorov | 15th Paleochora Open | Caro-Kann Defense: Endgame Offer | |
| Jul 17, 2022 | Zakarian | 0–1 | Rahmanidis | 15th Paleochora Open | ? | |
| Jul 27, 2021 | Deligiannis | * | Rahmanidis | 13th International Tournament of Paleochora | ? | |
| Jul 26, 2021 | Rahmanidis | * | Antoniadis | 14th Paleochora International Tournament | ? | |
| Jul 26, 2021 | Rahmanidis | * | Antoniadis | 13th International Tournament of Paleochora | ? | |
| Jul 24, 2021 | Rahmanidis | * | Krallis | 13th International Tournament of Paleochora | ? | |
| Jul 24, 2021 | Rahmanidis | ½–½ | Haug | 14th Paleochora International Chess Tournament 2021 | ? | |
| — | Ergazakis | 1–0 | Rahmanidis | Round 4: Ergazakis, Ioannis - Rahmanidis, Petros | Sicilian Defense: Moscow Variation | |
