| Oct 25, 2025 | Galopoulos | 0–1 | Mamedyarov | Round 7: Galopoulos, Nikolaos - Mamedyarov, Shakhriyar | Dutch Defense: Semi-Leningrad Variation | |
| Oct 24, 2025 | Lopez Martinez | 1–0 | Galopoulos | Round 6: Lopez Martinez, Josep Manuel - Galopoulos, Nikolaos | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Oct 23, 2025 | Galopoulos | ½–½ | Wirig | Round 5: Galopoulos, Nikolaos - Wirig, Anthony | Queen's Gambit Declined: Three Knights Variation | |
| Oct 22, 2025 | Charnushevich | ½–½ | Galopoulos | Round 4: Charnushevich, Aliaksei - Galopoulos, Nikolaos | Rubinstein Opening | |
| Oct 21, 2025 | Galopoulos | ½–½ | Ben Ari | Round 3: Galopoulos, Nikolaos - Ben Ari, Yannay | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Sep 13, 2025 | Veljanoski | 1–0 | Galopoulos | Round 10: Veljanoski, Andrej - Galopoulos, Nikolaos | Sicilian Defense: Najdorf Variation | |
| Sep 13, 2025 | Ladopoulos | 1–0 | Galopoulos | Round 8: Ladopoulos, Dimitrios - Galopoulos, Nikolaos | Queen's Pawn Game: Symmetrical Variation | |
| Sep 13, 2025 | Galopoulos | ½–½ | Gouloutis | Round 7: Galopoulos, Nikolaos - Gouloutis, Nikolaos | Kangaroo Defense | |
| Sep 13, 2025 | Stankovic | ½–½ | Galopoulos | Round 6: Stankovic, Milos - Galopoulos, Nikolaos | Trompowsky Attack: Classical Defense, Big Center Variation | |
| Sep 13, 2025 | Galopoulos | 1–0 | Ioannidis | Round 5: Galopoulos, Nikolaos - Ioannidis, Evgenios | Semi-Slav Defense: Chigorin Defense | |
| Sep 13, 2025 | Mantazis | ½–½ | Galopoulos | Round 4: Mantazis, Georgios Rafail - Galopoulos, Nikolaos | Sicilian Defense: Chekhover Variation | |
| Sep 13, 2025 | Galopoulos | 1–0 | Papadopoulos | Round 3: Galopoulos, Nikolaos - Papadopoulos, Panayotis | Indian Defense: Seirawan Attack | |
| Jul 6, 2025 | Galopoulos | ½–½ | Nikolaidis | Final: Galopoulos, Nikolaos - Nikolaidis, Ioannis | Indian Defense: Seirawan Attack | |
| Jul 5, 2025 | Kalogridakis | 0–1 | Galopoulos | Semi-Finals: Kalogridakis, Theodoros - Galopoulos, Nikolaos | Sicilian Defense: Moscow Variation, Main Line | |
| Jul 4, 2025 | Galopoulos | ½–½ | Christodoulou | Round 7: Galopoulos, Nikolaos - Christodoulou, Panagiotis | Queen's Gambit Declined | |
| Jul 3, 2025 | Stoumbos | 0–1 | Galopoulos | Round 6: Stoumbos, Konstantinos - Galopoulos, Nikolaos | Sicilian Defense: Najdorf Variation, Amsterdam Variation | |
| Jul 3, 2025 | Anagnostopoulos | 1–0 | Galopoulos | Round 4: Anagnostopoulos, Konstantinos - Galopoulos, Nikolaos | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 3, 2025 | Galopoulos | 1–0 | Gouloutis | Round 3: Galopoulos, Nikolaos - Gouloutis, Nikolaos | Bogo-Indian Defense: Grünfeld Variation | |
| Jul 3, 2025 | Vafiadis | ½–½ | Galopoulos | Round 2: Vafiadis, Kleanthis - Galopoulos, Nikolaos | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Jul 3, 2025 | Galopoulos | 1–0 | Finokaliotis | Round 1: Galopoulos, Nikolaos - Finokaliotis, Georgios | English Opening: Neo-Catalan Declined | |
| Jul 3, 2025 | Galopoulos | ½–½ | Kelires | Round 5: Galopoulos, Nikolaos - Kelires, Andreas | Queen's Gambit Declined: Three Knights Variation | |
| Jun 22, 2025 | Galopoulos | 1–0 | Kalogridis | 43rd Hybrid Greek Cup F8 | King's Indian Defense | |
| Jun 8, 2025 | Galopoulos | ½–½ | Stamatiou | 43rd Hybrid Greek Cup 2025 F16 | Queen's Gambit Declined: Three Knights Variation | |
| Oct 25, 2024 | Dragicevic | 0–1 | Galopoulos | 39th European Chess Club Cup | Tarrasch Defense: Symmetrical Variation | |
| Oct 23, 2024 | Sylvan | 0–1 | Galopoulos | 39th European Chess Club Cup | Sicilian Defense: Najdorf Variation | |
| Oct 20, 2024 | Galopoulos | ½–½ | Li | 39th European Chess Club Cup | English Opening: Agincourt Defense | |
| Aug 22, 2024 | Galopoulos | 0–1 | Tarhan | Round 7: Galopoulos, Nikolaos - Tarhan, Adar | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Aug 21, 2024 | Siddharth | 1–0 | Galopoulos | Round 6: Siddharth, Jagadeesh - Galopoulos, Nikolaos | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Aug 20, 2024 | Galopoulos | 1–0 | Chanda | Round 5: Galopoulos, Nikolaos - Chanda, Sandipan | King's Indian Defense: Normal Variation | |
| Aug 19, 2024 | Khamdamova | 0–1 | Galopoulos | Round 4: Khamdamova, Afruza - Galopoulos, Nikolaos | Ruy Lopez: Cozio Defense | |
| Aug 18, 2024 | Galopoulos | ½–½ | Yan | Round 3: Galopoulos, Nikolaos - Yan, Tianqi | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line | |
| Aug 16, 2024 | Srihari L R | 1–0 | Galopoulos | 30th AbuDhabi Masters Chess Tournament | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Jul 10, 2024 | Kouskoutis | 1–0 | Galopoulos | Greek League 2024 | English Opening: Symmetrical Variation, Botvinnik System | |
| Jul 9, 2024 | Spyropoulos | ½–½ | Galopoulos | Greek League 2024 | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 8, 2024 | Galopoulos | 1–0 | Poupalos | Greek League 2024 | Catalan Opening: Open Defense | |
| Jul 7, 2024 | Michelakos | 0–1 | Galopoulos | Greek League 2024 | Queen's Pawn Game: Accelerated London System | |
| Jul 6, 2024 | Galopoulos | 1–0 | Kazakos | Greek League 2024 | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Jul 5, 2024 | Galopoulos | 1–0 | Frendzas | Greek League 2024 | English Opening: Agincourt Defense | |
| Jul 4, 2024 | Stoimenidis | 0–1 | Galopoulos | Greek League 2024 | Sicilian Defense: Sozin Attack, Flank Variation | |
| Oct 24, 2024 | Galopoulos | 1–0 | Nesterov | Round 5: Galopoulos, Nikolaos - Nesterov, Arseniy | Nimzo-Indian Defense: Classical Variation, Noa Variation | |
| Oct 22, 2024 | Galopoulos | ½–½ | Chigaev | Round 3: Galopoulos, Nikolaos - Chigaev, Maksim | Queen's Gambit Declined | |
| Aug 17, 2022 | Galopoulos | ½–½ | Alexiadis | National Greek Team Championship | Ruy Lopez: Closed, Flohr System | |
| Aug 16, 2022 | Kalogeris | 1–0 | Galopoulos | National Greek Team Championship | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Aug 15, 2022 | Galopoulos | 1–0 | Papasimakopoulos | National Greek Team Championship | Pseudo Queen's Indian Defense | |
| Aug 14, 2022 | Roinos | 0–1 | Galopoulos | National Greek Team Championship | Sicilian Defense: Sozin Attack, Flank Variation | |
| Aug 13, 2022 | Galopoulos | ½–½ | Nikolaidis | National Greek Team Championship | Queen's Gambit Declined: Three Knights Variation | |
| Aug 12, 2022 | Kazantzidis | ½–½ | Galopoulos | National Greek Team Championship | Horwitz Defense | |
| — | Galopoulos | 1–0 | Ballas | National Greek Team Championship | Queen's Gambit Declined: Ragozin Defense | |
