| Jul 16, 2026 | Vayanos | 0–1 | Merkos | Round 8: Vayanos,George Marwan - Merkos, Thomas | Sicilian Defense: French Variation, Open | |
| Jul 16, 2026 | Merkos | ½–½ | Papaioannou | Round 7: Merkos, Thomas - Papaioannou, Dimitrios | Four Knights Game: Scotch Variation Accepted | |
| Jul 15, 2026 | Merkos | ½–½ | Tsamtsouris | Round 6: Merkos, Thomas - Tsamtsouris, Efthymios | Caro-Kann Defense: Tartakower Variation | |
| Jul 14, 2026 | Boutikos | ½–½ | Merkos | Round 5: Boutikos, Eleftherios - Merkos, Thomas | Sicilian Defense: Delayed Alapin Variation, with e6 | |
| Jul 13, 2026 | Spiliotopoulos | 0–1 | Merkos | Round 4: Spiliotopoulos, Spyridon - Merkos, Thomas | Rapport-Jobava System | |
| Jul 12, 2026 | Merkos | 1–0 | Chatzigeorgiou | Round 3: Merkos, Thomas - Chatzigeorgiou, Ioannis | Caro-Kann Defense: Tartakower Variation | |
| Jul 12, 2026 | Kamperidis | 1–0 | Merkos | Round 2: Kamperidis, Charalampos - Merkos, Thomas | Sicilian Defense: Four Knights Variation | |
| Jun 29, 2026 | Vassis | 1–0 | Merkos | Round 9: Vassis, Michail - Merkos, Thomas | English Opening: Agincourt Defense | |
| Feb 21, 2026 | Kazantzoglou | 1–0 | Merkos | Round 3: Kazantzoglou, Stefanos - Merkos, Thomas | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Feb 20, 2026 | Merkos | ½–½ | Papasimakopoulos | Round 2: Merkos, Thomas - Papasimakopoulos, Alexandros | Caro-Kann Defense: Modern Variation | |
| Sep 9, 2025 | Sirigos | 1–0 | Merkos | Round 9: Sirigos, Nikolaos - Merkos, Thomas | English Opening: Symmetrical Variation, Botvinnik System | |
| Sep 8, 2025 | Merkos | ½–½ | Vassis | Round 8: Merkos, Thomas - Vassis, Michail | French Defense: Exchange Variation | |
| Sep 7, 2025 | Palaiologou | ½–½ | Merkos | Round 7: Palaiologou, Apostolos - Merkos, Thomas | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Sep 6, 2025 | Salahidou | 0–1 | Merkos | Round 6: Salahidou, Reveka - Merkos, Thomas | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Sep 5, 2025 | Merkos | ½–½ | Goutoufas | Round 5: Merkos, Thomas - Goutoufas, Christos | Sicilian Defense | |
| Sep 4, 2025 | Kalliora | 0–1 | Merkos | Round 4: Kalliora, Despoina - Merkos, Thomas | Dutch Defense: Leningrad Variation, Matulovic Variation | |
| Sep 3, 2025 | Merkos | 0–1 | Papadopoulos | Round 3: Merkos, Thomas - Papadopoulos, Georgios | French Defense: Exchange Variation | |
| Jul 10, 2024 | Minadakis | ½–½ | Merkos | Greek League 2024 | Alekhine Defense: Exchange Variation, Voronezh Variation | |
| Jul 9, 2024 | Merkos | 1–0 | Choullis | Greek League 2024 | Sicilian Defense: Richter-Rauzer Variation, Dragon Variation | |
| Jul 8, 2024 | Katsanis | 1–0 | Merkos | Greek League 2024 | Nimzo-Indian Defense: Kmoch Variation | |
| Jul 7, 2024 | Merkos | 0–1 | Koutlas | Greek League 2024 | Sicilian Defense: Najdorf Variation | |
| Jul 6, 2024 | Karamichos | 0–1 | Merkos | Greek League 2024 | King's Indian Attack | |
| Jul 5, 2024 | Merkos | 1–0 | Sioutis | Greek League 2024 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Sep 8, 2021 | Michos | 0–1 | Merkos | Greek Team Championship | Sicilian Defense: Closed | |