| Apr 19, 2026 | Koutsioumpos | 0–1 | Nikitakis | Round 8: Koutsioumpos, Ioannis - Nikitakis, Michail | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Apr 17, 2026 | Bimpikas | 0–1 | Nikitakis | Round 6: Bimpikas, Ioannis - Nikitakis, Michail | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 17, 2026 | Megagiannis | ½–½ | Nikitakis | Round 4: Megagiannis, Maximos - Nikitakis, Michail | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Apr 17, 2026 | Nikitakis | 1–0 | Skoulas | Round 5: Nikitakis, Michail - Skoulas, Stavros | French Defense: Tarrasch Variation, Eliskases Variation | |
| Apr 15, 2026 | Nikitakis | ½–½ | Koutsionas | Round 3: Nikitakis, Michail - Koutsionas, Athanasios | Pirc Defense | |
| Apr 15, 2026 | Kalligeris | 0–1 | Nikitakis | Round 2: Kalligeris, Ioannis - Nikitakis, Michail | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Apr 14, 2026 | Nikitakis | 1–0 | Dimou | Round 1: Nikitakis, Michail - Dimou, Konstantinos | Sicilian Defense: Dragon Variation, Yugoslav Attack, Early Deviations | |
| Apr 9, 2026 | Nikitakis | ½–½ | Kalonomos | Round 9: Nikitakis, Michail - Kalonomos, Ioannis | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Apr 9, 2026 | Nikitakis | 1–0 | Alexandrakis | Round 7: Nikitakis, Michail - Alexandrakis, Vasileios Sp | Sicilian Defense: Closed | |
| Nov 30, 2025 | Kazakis | 1–0 | Nikitakis | Round 6: Kazakis, Mattheos Konstantinos - Nikitakis, Michail | Scotch Game: Scotch Gambit, Advance Variation | |
| Nov 29, 2025 | Nikitakis | ½–½ | Arampatzis | Round 5: Nikitakis, Michail - Arampatzis, Christos | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Nov 29, 2025 | Zacharakis | 0–1 | Nikitakis | Round 4: Zacharakis, Ilias - Nikitakis, Michail | Scotch Game: Scotch Gambit, Advance Variation | |
| Nov 28, 2025 | Nikitakis | 0–1 | Tamiolakis | Round 3: Nikitakis, Michail - Tamiolakis, Grigorios | French Defense: Tarrasch Variation, Eliskases Variation | |
| Nov 28, 2025 | Volani | 0–1 | Nikitakis | Round 2: Volani, Olga - Nikitakis, Michail | Elephant Gambit: Paulsen Countergambit | |
| Nov 27, 2025 | Nikitakis | 1–0 | Koutsionas | Round 1: Nikitakis, Michail - Koutsionas, Athanasios | Sicilian Defense: Scheveningen Variation | |
| Oct 31, 2025 | Barcelo Melnyk | 1–0 | Nikitakis | Round 3: Barcelo Melnyk, Marc - Nikitakis, Michail | Ruy Lopez: Closed, Flohr System | |
| Sep 9, 2025 | Nikitakis | 0–1 | Armaos | Round 9: Nikitakis, Michail - Armaos, Michail | Caro-Kann Defense: Tartakower Variation | |
| Sep 8, 2025 | Nemtsas | ½–½ | Nikitakis | Round 8: Nemtsas, Hristoforos - Nikitakis, Michail | Nimzo-Indian Defense: Reshevsky Variation | |
| Jun 14, 2025 | Nikitakis | 0–1 | Ergazakis | Round 1: Nikitakis, Michail - Ergazakis, Ioannis | Sicilian Defense: Scheveningen Variation, English Attack, with f3 | |
| Apr 27, 2025 | Nikitakis | 1–0 | Ioannidis | Round 7: Nikitakis, Michail - Ioannidis, Agis | Petrov's Defense: Modern Attack | |
| Apr 26, 2025 | Michailidis | 0–1 | Nikitakis | Round 6: Michailidis, Georgios Savvas - Nikitakis, Michail | Four Knights Game: Spanish Variation, Rubinstein Variation | |
| Apr 25, 2025 | Nikitakis | 1–0 | Kalogeropoulos | Round 5: Nikitakis, Michail - Kalogeropoulos, Konstantinos | Ruy Lopez: Open, Bernstein Variation | |
| Apr 24, 2025 | Rompanos | 0–1 | Nikitakis | Round 4: Rompanos, Alexandros - Nikitakis, Michail | Ruy Lopez: Closed, Flohr System | |
| Apr 23, 2025 | Nikitakis | * | Patsiotis | Round 3: Nikitakis, Michail - Patsiotis, Konstantinos | Ruy Lopez: Berlin Defense | |
| Apr 23, 2025 | Vallianos | 0–1 | Nikitakis | Round 2: Vallianos, Athanasios - Nikitakis, Michail | Ruy Lopez: Exchange Variation | |
| Aug 28, 2024 | Nikitakis | 0–1 | Dayal | EYCC 2024 - O10 | Sicilian Defense: Dragon Variation | |
| Aug 26, 2024 | Dermenjyan | ½–½ | Nikitakis | EYCC 2024 - O10 | Nimzo-Indian Defense: Leningrad Variation | |
| Aug 25, 2024 | Nikitakis | 0–1 | Llari | EYCC 2024 - O10 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Aug 24, 2024 | Aghoyan | 0–1 | Nikitakis | EYCC 2024 - O10 | Four Knights Game: Scotch Variation Accepted | |
| Jul 8, 2024 | Nikitakis | 1–0 | Gkougkoustamos Sotirios | Greek League 2024 | Ruy Lopez: Berlin Defense | |
| Jul 7, 2024 | Rakitzis | 0–1 | Nikitakis | Greek League 2024 | Four Knights Game: Scotch Variation Accepted | |
| Jun 27, 2024 | Nikitakis | 1–0 | Toumpakaris | Round 8: Nikitakis, Michail - Toumpakaris, Grigorios Emmanouil | Ruy Lopez: Bird Variation | |
| Jun 26, 2024 | Kalonomos | 0–1 | Nikitakis | Round 7: Kalonomos, Ioannis - Nikitakis, Michail | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jun 25, 2024 | Nikitakis | ½–½ | Koutsioumpos | Round 6: Nikitakis, Michail - Koutsioumpos, Ioannis | Sicilian Defense: O'Kelly Variation, Normal System | |
| Jun 25, 2024 | Kalligeris | 0–1 | Nikitakis | Round 5: Kalligeris, Ioannis - Nikitakis, Michail | Ruy Lopez: Morphy Defense, Duras Variation | |
| Jun 24, 2024 | Nikitakis | 1–0 | Papadopoulos | Round 4: Nikitakis, Michail - Papadopoulos, Konstantinos P | Ruy Lopez: Open | |
| Jun 21, 2024 | Kotovos | 0–1 | Nikitakis | Round 9: Kotovos, Konstantinos - Nikitakis, Michail | Nimzo-Indian Defense: Normal Variation, Botvinnik System | |
| Jun 21, 2024 | Megagiannis | 1–0 | Nikitakis | Round 3: Megagiannis, Maximos - Nikitakis, Michail | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jun 21, 2024 | Nikitakis | 1–0 | Papaspyropoulos | Round 2: Nikitakis, Michail - Papaspyropoulos, Georgios | Scandinavian Defense: Gubinsky-Melts Defense | |
| Jun 21, 2024 | Kouvaros | 0–1 | Nikitakis | Round 1: Kouvaros, Vasileios Zeiron - Nikitakis, Michail | Italian Game: Two Knights Defense, Polerio Defense | |
| Nov 26, 2024 | Vardanyan | ½–½ | Nikitakis | Round 11: Vardanyan, Armen Art. - Nikitakis, Michail | Nimzo-Indian Defense: Classical Variation, Berlin Variation | |
| Nov 25, 2024 | Nikitakis | 1–0 | Nguyen Minh | Round 10: Nikitakis, Michail - Nguyen Minh | Sicilian Defense: Nimzowitsch Variation, Advance Variation | |
| Nov 24, 2024 | Makhsatuly | 0–1 | Nikitakis | Round 9: Makhsatuly, Rakhim - Nikitakis, Michail | Sicilian Defense: Taimanov Variation | |
| Nov 23, 2024 | Nikitakis | 0–1 | Tugsbilguun | Round 8: Nikitakis, Michail - Tugsbilguun, Davganamdag | Sicilian Defense: Najdorf Variation | |
| Nov 22, 2024 | Kazimzade | ½–½ | Nikitakis | Round 7: Kazimzade, Mahammad - Nikitakis, Michail | English Opening: King's English Variation, Two Knights Variation | |
| Nov 20, 2024 | Nikitakis | 0–1 | Fuentes de Nova | Round 6: Nikitakis, Michail - Fuentes de Nova, Sebastian | Ruy Lopez: Open, Bernstein Variation | |
| Nov 19, 2024 | Kostyukovich | 0–1 | Nikitakis | Round 5: Kostyukovich, Ivan - Nikitakis, Michail | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Nov 18, 2024 | Nikitakis | 1–0 | Della Penna | Round 4: Nikitakis, Michail - Della Penna, Leonardo | Sicilian Defense: Najdorf Variation | |
| Nov 17, 2024 | Thorulsley | 0–1 | Nikitakis | Round 3: Thorulsley, Kairaav - Nikitakis, Michail | Rapport-Jobava System | |
| Nov 16, 2024 | Nikitakis | ½–½ | Czech | Round 2: Nikitakis, Michail - Czech, Emil | Sicilian Defense: Four Knights Variation | |
| Nov 15, 2024 | Aitmukhanov | 1–0 | Nikitakis | Round 1: Aitmukhanov, Arsen - Nikitakis, Michail | Italian Game: Classical Variation, Giuoco Pianissimo, Albin Variation | |
| — | Nikitakis | 0–1 | Andre | Round 2: Nikitakis, Michail - Andre, Tomas | Sicilian Defense: Lasker-Pelikan Variation, Bird Variation | |
| — | Nikitakis | ½–½ | Kucher | Round 6: Nikitakis, Michail - Kucher, Artem | Sicilian Defense: Godiva Variation | |
| — | Nikitakis | 1–0 | Puzas | Round 6: Nikitakis, Michail - Puzas, Kasparas | French Defense: Tarrasch Variation, Open System, Main Line | |
| — | Nikitakis | ½–½ | Andre | Round 7: Nikitakis, Michail - Andre, Tomas | Sicilian Defense: Lasker-Pelikan Variation, Bird Variation | |
| — | Nikitakis | ½–½ | Petrenko | Round 16: Nikitakis, Michail - Petrenko, Tymofii | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| — | Nikitakis | 0–1 | Savchuk | Round 17: Nikitakis, Michail - Savchuk, Oleksandr | Sicilian Defense: Najdorf Variation | |
| — | Verbic | 0–1 | Nikitakis | Round 5: Verbic, Jan - Nikitakis, Michail | Elephant Gambit: Paulsen Countergambit | |
| — | Mueller | 1–0 | Nikitakis | Round 7: Mueller, Konstantin - Nikitakis, Michail | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| — | Vardanyan | ½–½ | Nikitakis | Round 9: Vardanyan, Armen Art. - Nikitakis, Michail | King's Indian Attack: Yugoslav Variation | |
| — | Puzas | 1–0 | Nikitakis | Round 5: Puzas, Kasparas - Nikitakis, Michail | Four Knights Game: Scotch Variation Accepted | |
| — | Andre | 1–0 | Nikitakis | Round 8: Andre, Tomas - Nikitakis, Michail | Scotch Game: Potter Variation | |
| — | Petrenko | ½–½ | Nikitakis | Round 15: Petrenko, Tymofii - Nikitakis, Michail | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| — | Savchuk | 1–0 | Nikitakis | Round 18: Savchuk, Oleksandr - Nikitakis, Michail | Elephant Gambit: Paulsen Countergambit | |