| Apr 16, 2026 | Iliopoulos | 1–0 | Papakyriakou | Round 3: Iliopoulos, Petros - Papakyriakou, Petros | Bogo-Indian Defense: Nimzowitsch Variation | |
| Apr 15, 2026 | Papakyriakou | ½–½ | Chompas | Round 1: Papakyriakou, Petros - Chompas, Vasileios | English Opening: Agincourt Defense, Bogoljubow Defense | |
| Mar 21, 2026 | Antoniou Tragoudas | 1–0 | Papakyriakou | 3rd International Open Chess Tournament of Katerini Group B | English Opening: Anglo-Indian Defense | |
| Jul 10, 2025 | Papakyriakou | 0–1 | Lampos | Round 7: Papakyriakou, Petros - Lampos, Charalampos | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 10, 2025 | Kazakis | 1–0 | Papakyriakou | Round 6: Kazakis, Mattheos Konstantinos - Papakyriakou, Petros | Sicilian Defense: Moscow Variation, Main Line | |
| Jul 9, 2025 | Papakyriakou | 1–0 | Arampatzis | Round 5: Papakyriakou, Petros - Arampatzis, Christos | English Opening: Anglo-Indian Defense | |
| Jul 8, 2025 | Papakyriakou | ½–½ | Tamiolakis | Round 3: Papakyriakou, Petros - Tamiolakis, Grigorios | Sicilian Defense: Kan Variation | |
| Jul 3, 2025 | Tsarouchas | 0–1 | Papakyriakou | Round 2: Tsarouchas, Athanasios - Papakyriakou, Petros | Sicilian Defense: Alapin Variation, Barmen Defense | |
| Jul 7, 2024 | Manolopoulos | 1–0 | Papakyriakou | Greek League 2024 | Sicilian Defense: Moscow Variation, Main Line | |
| Jul 5, 2024 | Kountrias | 0–1 | Papakyriakou | Greek League 2024 | Sicilian Defense: Chekhover Variation | |
| Jun 28, 2024 | Tzimas | 0–1 | Papakyriakou | Round 9: Tzimas, Konstantinos - Papakyriakou, Petros | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jun 27, 2024 | Papakyriakou | 0–1 | Anagnostopoulos | Round 8: Papakyriakou, Petros - Anagnostopoulos, Panagiotis | English Opening: Agincourt Defense | |
| Jun 26, 2024 | Kazakis | 1–0 | Papakyriakou | Round 7: Kazakis, Mattheos Konstantinos - Papakyriakou, Petros | Sicilian Defense: Moscow Variation, Sokolsky Variation | |
| Jun 25, 2024 | Papakyriakou | 1–0 | Gialelis | Round 6: Papakyriakou, Petros - Gialelis, Konstantinos | English Opening: Symmetrical Variation | |
| Jun 25, 2024 | Ilias | 0–1 | Papakyriakou | Round 5: Ilias, Nikolaos - Papakyriakou, Petros | Bogo-Indian Defense: Exchange Variation | |
| Jun 24, 2024 | Papakyriakou | 1–0 | Nikakis | Round 4: Papakyriakou, Petros - Nikakis, Filippos | King's Indian Defense | |
| Jun 23, 2024 | Kountrias | 1–0 | Papakyriakou | Round 3: Kountrias, Kosmas Ioannis - Papakyriakou, Petros | Sicilian Defense: Closed | |
| Jun 23, 2024 | Papakyriakou | 1–0 | Fraidakis | Round 2: Papakyriakou, Petros - Fraidakis, Matthaios Ioannis | English Opening: Symmetrical Variation, Normal Variation | |
| Jun 22, 2024 | Siskos | 0–1 | Papakyriakou | Round 1: Siskos, Vasileios P - Papakyriakou, Petros | Sicilian Defense: Najdorf Variation | |
