| Apr 20, 2026 | Mastichiadis | 0–1 | Tsomidis | Round 9: Mastichiadis, Dimitrios - Tsomidis, Stefanos | French Defense: Advance Variation, Main Line | |
| Apr 19, 2026 | Mastichiadis | 1–0 | Nikolakis | Round 3: Mastichiadis, Dimitrios - Nikolakis, Konstantinos | Caro-Kann Defense: Exchange Variation | |
| Apr 19, 2026 | Mastichiadis | 0–1 | Kougkoulis | Round 7: Mastichiadis, Dimitrios - Kougkoulis, Christos Orfeas | Caro-Kann Defense: Exchange Variation, Rubinstein Variation | |
| Apr 18, 2026 | Sotirakopoulos | 1–0 | Mastichiadis | Round 6: Sotirakopoulos, Panagiotis - Mastichiadis, Dimitrios | Sicilian Defense: Najdorf Variation | |
| Apr 17, 2026 | Estiadis | 0–1 | Mastichiadis | Round 4: Estiadis, Georgios - Mastichiadis, Dimitrios | Sicilian Defense: Moscow Variation, Main Line | |
| Apr 17, 2026 | Mastichiadis | 0–1 | Vlachavas | Round 5: Mastichiadis, Dimitrios - Vlachavas, Athanasios | Sicilian Defense: Closed | |
| Apr 15, 2026 | Siozos | 1–0 | Mastichiadis | Round 2: Siozos, Antonios Damianos - Mastichiadis, Dimitrios | Sicilian Defense: Moscow Variation, Main Line | |
| Apr 15, 2026 | Mastichiadis | 0–1 | Balafoutas | Round 1: Mastichiadis, Dimitrios - Balafoutas, Alexandros | Sicilian Defense: Closed, Traditional | |
| Jan 5, 2026 | Mastichiadis | 0–1 | Karvountzis | Round 5: Mastichiadis, Dimitrios - Karvountzis, Ioannis Chrysostomos | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Apr 27, 2025 | Mastichiadis | * | Bantounas Sarantopoulos | Round 7: Mastichiadis, Dimitrios - Bantounas Sarantopoulos, Orestis | ? | |
| Apr 26, 2025 | Filippou | * | Mastichiadis | Round 6: Filippou, Georgios - Mastichiadis, Dimitrios | Sicilian Defense: Closed | |
| Apr 25, 2025 | Najjari Omidkakh | 0–1 | Mastichiadis | Round 5: Najjari Omidkakh, Soroush - Mastichiadis, Dimitrios | Sicilian Defense: Najdorf Variation | |
| Apr 24, 2025 | Mastichiadis | 0–1 | Chatzipavlou | Round 4: Mastichiadis, Dimitrios - Chatzipavlou, Odysseas | French Defense: Advance Variation, Milner-Barry Gambit | |
| Apr 22, 2025 | Ieromonachos | * | Mastichiadis | Round 1: Ieromonachos, Georgios - Mastichiadis, Dimitrios | Dutch Defense: Classical Variation | |
| Jun 28, 2024 | Mastichiadis | * | Kallaras | Round 9: Mastichiadis, Dimitrios - Kallaras, Georgios | ? | |
| Jun 27, 2024 | Mastichiadis | * | Koutsionas | Round 8: Mastichiadis, Dimitrios - Koutsionas, Konstantinos | ? | |
| Jun 26, 2024 | Maragkos | * | Mastichiadis | Round 7: Maragkos, Alexandros - Mastichiadis, Dimitrios | ? | |
| Jun 25, 2024 | Mastichiadis | * | Maragkozidis | Round 6: Mastichiadis, Dimitrios - Maragkozidis, Efstathios | ? | |
| Jun 25, 2024 | Bakalis | * | Mastichiadis | Round 5: Bakalis, Konstantinos - Mastichiadis, Dimitrios | ? | |
| Jun 24, 2024 | Mastichiadis | * | Kantzaris | Round 4: Mastichiadis, Dimitrios - Kantzaris, Ilias | ? | |
| Jun 23, 2024 | Kilaidakis | * | Mastichiadis | Round 3: Kilaidakis, Ioannis - Mastichiadis, Dimitrios | ? | |
| Jun 23, 2024 | Mastichiadis | 0–1 | Makrylakis | Round 2: Mastichiadis, Dimitrios - Makrylakis, Iason | French Defense: Advance Variation, Euwe Variation | |
| May 9, 2024 | Mastichiadis | 0–1 | Stavropoulos | Round 4: Mastichiadis, Dimitrios - Stavropoulos, Sotirios | Caro-Kann Defense: Tartakower Variation | |
| May 8, 2024 | Misthos | 1–0 | Mastichiadis | Round 2: Misthos, Alexandros - Mastichiadis, Dimitrios | Queen's Indian Defense: Capablanca Variation | |
