| Apr 20, 2026 | Gkadakis | 1–0 | Chompas | Round 9: Gkadakis, Nikolaos - Chompas, Vasileios | King's Gambit Accepted: Bonsch-Osmolovsky Variation | |
| Apr 19, 2026 | Mentzos | ½–½ | Gkadakis | Round 8: Mentzos, Apostolos - Gkadakis, Nikolaos | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Apr 18, 2026 | Gkadakis | 0–1 | Oikonomopoulos | Round 6: Gkadakis, Nikolaos - Oikonomopoulos, Filippos | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 18, 2026 | Gkadakis | ½–½ | Nikolopoulos | Round 7: Gkadakis, Nikolaos - Nikolopoulos, Nikolaos S | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 17, 2026 | Kountrias | 0–1 | Gkadakis | Round 5: Kountrias, Kosmas Ioannis - Gkadakis, Nikolaos | Caro-Kann Defense: Breyer Variation | |
| Apr 17, 2026 | Gkadakis | ½–½ | Anagnostopoulos | Round 4: Gkadakis, Nikolaos - Anagnostopoulos, Panagiotis | King's Indian Defense: Kramer Variation | |
| Apr 16, 2026 | Seretis | ½–½ | Gkadakis | Round 3: Seretis, Anastasios - Gkadakis, Nikolaos | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Apr 15, 2026 | Gkadakis | 1–0 | Ioannidis | Round 2: Gkadakis, Nikolaos - Ioannidis, Konstantinos I | Sicilian Defense: Moscow Variation | |
| Mar 15, 2026 | Gkadakis | 0–1 | Ioannidis | Round 7: Gkadakis, Nikolaos - Ioannidis, Konstantinos I | Caro-Kann Defense: Classical Variation | |
| Mar 15, 2026 | Gkadakis | ½–½ | Gkadakis | Round 3: Gkadakis, Nikolaos - Gkadakis, Athanasios | Caro-Kann Defense: Tartakower Variation | |
| Mar 15, 2026 | Paschalidou | 0–1 | Gkadakis | Round 2: Paschalidou, Eleni - Gkadakis, Nikolaos | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Mar 15, 2026 | Gkadakis | 1–0 | Anastasiadis | Round 1: Gkadakis, Nikolaos - Anastasiadis, Konstantinos G | Sicilian Defense: Dragon Variation, Classical Variation | |
| Jan 10, 2026 | Gkadakis | ½–½ | Akopashvili | Round 9: Gkadakis, Nikolaos - Akopashvili, Alexandre | Sicilian Defense: Richter-Rauzer Variation | |
| Jan 8, 2026 | Gkadakis | ½–½ | Zouroufidis | Round 7: Gkadakis, Nikolaos - Zouroufidis, Konstantinos | Ruy Lopez: Schliemann Defense, Schönemann Attack | |
| Jan 5, 2026 | Bokias | 1–0 | Gkadakis | Round 4: Bokias, Petros - Gkadakis, Nikolaos | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jan 4, 2026 | Gkadakis | ½–½ | Iliopoulos | Round 3: Gkadakis, Nikolaos - Iliopoulos, Panagiotis | French Defense: Rubinstein Variation, Kasparov Attack | |
| Nov 30, 2025 | Gkadakis | 0–1 | Kostoglou | Round 6: Gkadakis, Nikolaos - Kostoglou, Apostolos | King's Indian Defense: Kramer Variation | |
| Nov 29, 2025 | Stergatos | 0–1 | Gkadakis | Round 5: Stergatos, Dimitrios - Gkadakis, Nikolaos | Catalan Opening: Closed | |
| Nov 29, 2025 | Gkadakis | 1–0 | Alexandrakis | Round 4: Gkadakis, Nikolaos - Alexandrakis, Venizelos | Nimzo-Indian Defense: Sämisch Variation | |
| Nov 28, 2025 | Kazakis | 1–0 | Gkadakis | Round 3: Kazakis, Mattheos Konstantinos - Gkadakis, Nikolaos | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Nov 28, 2025 | Gkadakis | 1–0 | Angelakis | Round 2: Gkadakis, Nikolaos - Angelakis, Emmanouil | Nimzo-Larsen Attack: Modern Variation | |
| Nov 27, 2025 | Koloutsos | 0–1 | Gkadakis | Round 1: Koloutsos, Spyridon - Gkadakis, Nikolaos | Four Knights Game: Spanish Variation | |
| Jul 12, 2025 | Gkadakis | 0–1 | Lampos | Round 9: Gkadakis, Nikolaos - Lampos, Charalampos | English Opening: Agincourt Defense, Catalan Defense | |
| Jul 11, 2025 | Gkadakis | 1–0 | Megagiannis | Round 8: Gkadakis, Nikolaos - Megagiannis, Maximos | Nimzo-Indian Defense: Sämisch Variation | |
| Jul 10, 2025 | Zacharakis | ½–½ | Gkadakis | Round 6: Zacharakis, Ilias - Gkadakis, Nikolaos | Sicilian Defense: Accelerated Dragon | |
| Jul 9, 2025 | Gkadakis | ½–½ | Kazakis | Round 5: Gkadakis, Nikolaos - Kazakis, Mattheos Konstantinos | Sicilian Defense: Closed | |
| Jul 8, 2025 | Arampatzis | ½–½ | Gkadakis | Round 4: Arampatzis, Christos - Gkadakis, Nikolaos | Scotch Game: Potter Variation | |
| Jul 8, 2025 | Gkadakis | 1–0 | Nteneketzis | Round 3: Gkadakis, Nikolaos - Nteneketzis, Paraskevas | Nimzo-Larsen Attack: Classical 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 6, 2025 | Ioannidis | ½–½ | Gkadakis | Round 7: Ioannidis, Konstantinos I - Gkadakis, Nikolaos | Scotch Game: Classical Variation | |
| Jul 4, 2025 | Nteneketzis | 0–1 | Gkadakis | Round 7: Nteneketzis, Paraskevas - Gkadakis, Nikolaos | Ruy Lopez: Closed, Bogoljubow Variation | |
| Jul 3, 2025 | Gkadakis | 0–1 | Volani | Round 6: Gkadakis, Nikolaos - Volani, Olga | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jul 3, 2025 | Danezis | ½–½ | Gkadakis | Round 4: Danezis, Prodromos - Gkadakis, Nikolaos | Queen's Pawn Game: Barry Attack | |
| Jul 3, 2025 | Gkadakis | 1–0 | Kazakis | Round 3: Gkadakis, Nikolaos - Kazakis, Mattheos Konstantinos | Sicilian Defense: Najdorf Variation | |
| Jul 3, 2025 | Alexandrakis | ½–½ | Gkadakis | Round 2: Alexandrakis, Venizelos - Gkadakis, Nikolaos | Italian Game: Scotch Gambit, Anderssen Attack | |
| Jul 3, 2025 | Gkadakis | 1–0 | Arampatzis | Round 1: Gkadakis, Nikolaos - Arampatzis, Christos | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 3, 2025 | Gkadakis | ½–½ | Rakitzis | Round 5: Gkadakis, Nikolaos - Rakitzis, Alexanter Emmanouel | Sicilian Defense: Taimanov Variation, Normal Variation | |
| Mar 23, 2025 | Gkadakis | 0–1 | Apostolos Kwstoglou | Round 5: Gkadakis, Nikolaos - Apostolos Kwstoglou | French Defense: King's Indian Attack | |
| Jul 10, 2024 | Papadopoulos | 0–1 | Gkadakis | Greek League 2024 | Indian Defense | |
| Jul 9, 2024 | Gkadakis | * | Vergis | Greek League 2024 | Ruy Lopez: Berlin Defense | |
| Jul 5, 2024 | Gkadakis | ½–½ | Misios | Greek League 2024 | Sicilian Defense: Taimanov Variation, Szén Variation | |
| Nov 30, 2024 | Ioannidis | 1–0 | Gkadakis | Round 4: Ioannidis, Konstantinos I - Gkadakis, Nikolaos | Zukertort Opening: Nimzo-Larsen Variation | |
| Nov 28, 2024 | Gkadakis | 1–0 | Kalonomos | Round 1: Gkadakis, Nikolaos - Kalonomos, Ioannis | Ruy Lopez: Berlin Defense | |