| Nov 30, 2025 | Makrylakis | 1–0 | Diakoloukas | Round 6: Makrylakis, Iason - Diakoloukas, Theodosios | Philidor Defense: Lion Variation | |
| Nov 29, 2025 | Papadopoulos | 0–1 | Diakoloukas | Round 5: Papadopoulos, Odysseas Panos - Diakoloukas, Theodosios | Pirc Defense | |
| Nov 28, 2025 | Diakoloukas | ½–½ | Stergatos | Round 3: Diakoloukas, Theodosios - Stergatos, Athanasios | Petrov's Defense: Modern Attack | |
| Nov 28, 2025 | Diakoloukas | 0–1 | Ntounias | Round 2: Diakoloukas, Theodosios - Ntounias, Ioannis | Sicilian Defense: Grand Prix Attack | |
| Nov 27, 2025 | Boutikos | 1–0 | Diakoloukas | Round 1: Boutikos, Eleftherios - Diakoloukas, Theodosios | Philidor Defense: Lion Variation | |
| Jul 7, 2025 | Diakoloukas | 0–1 | Gkadakis | Round 2: Diakoloukas, Theodosios - Gkadakis, Nikolaos | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Jul 4, 2025 | Diakoloukas | 1–0 | Skordilis | Round 7: Diakoloukas, Theodosios - Skordilis, Stefanos | Petrov's Defense: Nimzowitsch Attack | |
| Jul 3, 2025 | Kalogridis | 1–0 | Diakoloukas | Round 6: Kalogridis, Themistoklis - Diakoloukas, Theodosios | Benko Gambit Accepted: Modern Variation | |
| Jul 3, 2025 | Diakoloukas | 0–1 | Tagkaloglou | Round 4: Diakoloukas, Theodosios - Tagkaloglou, Savvas Stefanos | Scotch Game: Mieses Variation | |
| Jul 3, 2025 | Skodras | 1–0 | Diakoloukas | Round 3: Skodras, Marios Konstantinos - Diakoloukas, Theodosios | Zukertort Opening: Nimzo-Larsen Variation | |
| Jul 3, 2025 | Papidakis | 1–0 | Diakoloukas | Round 1: Papidakis, Georgios - Diakoloukas, Theodosios | English Opening: Anglo-Indian Defense, Old Indian Formation | |
| Jul 3, 2025 | Gkavardinas | 1–0 | Diakoloukas | Round 5: Gkavardinas, Antonios - Diakoloukas, Theodosios | Philidor Defense: Lion Variation | |
| Jun 28, 2024 | Ieromonachos | ½–½ | Diakoloukas | Round 9: Ieromonachos, Dimitrios Nektarios - Diakoloukas, Theodosios | Italian Game: Classical Variation, Greco Gambit, Greco Variation | |
| Jun 27, 2024 | Diakoloukas | ½–½ | Siskos | Round 8: Diakoloukas, Theodosios - Siskos, Vasileios P | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 26, 2024 | Nteneketzis | 1–0 | Diakoloukas | Round 7: Nteneketzis, Paraskevas - Diakoloukas, Theodosios | Ruy Lopez: Cozio Defense | |
| Jun 24, 2024 | Katrinis | 1–0 | Diakoloukas | Round 4: Katrinis, Georgios - Diakoloukas, Theodosios | Indian Defense | |
| Jun 23, 2024 | Tzimas | 1–0 | Diakoloukas | Round 3: Tzimas, Konstantinos - Diakoloukas, Theodosios | Scotch Game: Scotch Gambit, London Defense | |
| Jun 22, 2024 | Manolopoulos | 1–0 | Diakoloukas | Round 1: Manolopoulos, Christos - Diakoloukas, Theodosios | Ruy Lopez: Morphy Defense, Cozio Defense | |
