| Apr 19, 2026 | Chompas | 0–1 | Oikonomopoulos | Round 8: Chompas, Vasileios - Oikonomopoulos, Filippos | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Apr 18, 2026 | Gkadakis | 0–1 | Oikonomopoulos | Round 6: Gkadakis, Nikolaos - Oikonomopoulos, Filippos | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 17, 2026 | Oikonomopoulos | ½–½ | Seretis | Round 5: Oikonomopoulos, Filippos - Seretis, Anastasios | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Apr 17, 2026 | Kiryttopoulos | ½–½ | Oikonomopoulos | Round 4: Kiryttopoulos, Ioannis - Oikonomopoulos, Filippos | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 16, 2026 | Oikonomopoulos | 1–0 | Skarlas | Round 3: Oikonomopoulos, Filippos - Skarlas, Vasileios | Scotch Game: Schmidt Variation | |
| Apr 15, 2026 | Oikonomopoulos | 1–0 | Siozos | Round 1: Oikonomopoulos, Filippos - Siozos, Filippos | Scotch Game: Schmidt Variation | |
| Apr 9, 2026 | Oikonomopoulos | 1–0 | Diamantidis | Round 9: Oikonomopoulos, Filippos - Diamantidis, Sotirios | King's Indian Attack, with e6 | |
| Apr 9, 2026 | Oikonomopoulos | ½–½ | Anagnostopoulos | Round 7: Oikonomopoulos, Filippos - Anagnostopoulos, Panagiotis | French Defense: Advance Variation, Euwe Variation | |
| Apr 9, 2026 | Stergatos | 0–1 | Oikonomopoulos | Round 2: Stergatos, Dimitrios - Oikonomopoulos, Filippos | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Mar 23, 2026 | Oikonomopoulos | 0–1 | Stefanou | 3rd International Open Chess Tournament of Katerini Group A | Sicilian Defense: Closed, Traditional | |
| Mar 22, 2026 | Oikonomopoulos | 0–1 | Stefanou | 3rd International Open Chess Tournament of Katerini Group A | Pirc Defense | |
| Mar 22, 2026 | Oikonomopoulos | 1–0 | Naoum | 3rd International Open Chess Tournament of Katerini Group A | French Defense: Advance Variation, Euwe Variation | |
| Mar 21, 2026 | Krallis | ½–½ | Oikonomopoulos | 3rd International Open Chess Tournament of Katerini Group A | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Feb 23, 2026 | Oikonomopoulos | 0–1 | Kalogridis | Round 7: Oikonomopoulos, Filippos - Kalogridis, Antonios | Sicilian Defense: Closed, Traditional | |
| Feb 22, 2026 | Skaperdas | 0–1 | Oikonomopoulos | Round 6: Skaperdas, Kostantinos - Oikonomopoulos, Filippos | Sicilian Defense: Taimanov Variation, Modern Line | |
| Feb 22, 2026 | Oikonomopoulos | 0–1 | Patrelakis | Round 5: Oikonomopoulos, Filippos - Patrelakis, Evaggelos | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Feb 21, 2026 | Routsi | 0–1 | Oikonomopoulos | Round 4: Routsi, Efthimios-Alexandros - Oikonomopoulos, Filippos | King's Indian Defense: Fianchetto Variation, Classical Variation | |
| Feb 21, 2026 | Oikonomopoulos | ½–½ | Skomial | Round 3: Oikonomopoulos, Filippos - Skomial, Mateusz | Petrov's Defense: Modern Attack, Center Variation | |
| Feb 20, 2026 | Velikov | 0–1 | Oikonomopoulos | Round 2: Velikov, Nikola - Oikonomopoulos, Filippos | King's Indian Defense: Normal Variation, Rare Defenses | |
| Nov 30, 2025 | Oikonomopoulos | 1–0 | Valsamidis | Round 6: Oikonomopoulos, Filippos - Valsamidis, Efstathios | Sicilian Defense: Richter-Rauzer Variation, Modern Variation | |
| Nov 29, 2025 | Tselepis | ½–½ | Oikonomopoulos | Round 5: Tselepis, Ioannis - Oikonomopoulos, Filippos | Sicilian Defense: Kalashnikov Variation | |
| Nov 28, 2025 | Kartsakis | ½–½ | Oikonomopoulos | Round 3: Kartsakis, Ioannis - Oikonomopoulos, Filippos | Torre Attack: Fianchetto Defense | |
| Nov 28, 2025 | Oikonomopoulos | 1–0 | Lampousakis | Round 2: Oikonomopoulos, Filippos - Lampousakis, Michail | Sicilian Defense: Dragon Variation, Yugoslav Attack, Modern Line | |
| Nov 27, 2025 | Koutroupas | 0–1 | Oikonomopoulos | Round 1: Koutroupas, Emmanouil - Oikonomopoulos, Filippos | Sicilian Defense: Delayed Alapin Variation, with d6 | |
| Sep 9, 2025 | Kazantzoglou | ½–½ | Oikonomopoulos | Round 9: Kazantzoglou, Stefanos - Oikonomopoulos, Filippos | King's Indian Defense: Smyslov Variation | |
| Sep 8, 2025 | Oikonomopoulos | 1–0 | Antoniadis | Round 8: Oikonomopoulos, Filippos - Antoniadis, Anastasios | Sicilian Defense: Najdorf Variation | |
| Sep 7, 2025 | Oikonomopoulos | ½–½ | Anagnostopoulos | Round 7: Oikonomopoulos, Filippos - Anagnostopoulos, Panagiotis | Sicilian Defense | |
| Sep 3, 2025 | Tzortzatos | 0–1 | Oikonomopoulos | Round 3: Tzortzatos, Dimosthenis Panagiot - Oikonomopoulos, Filippos | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Sep 2, 2025 | Oikonomopoulos | 1–0 | Archontakis | Round 2: Oikonomopoulos, Filippos - Archontakis, Christos | Scotch Game: Potter Variation | |
| Sep 1, 2025 | Pournaras | 0–1 | Oikonomopoulos | Round 1: Pournaras, Panagiotis - Oikonomopoulos, Filippos | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Aug 28, 2025 | Papadopoulos | 1–0 | Oikonomopoulos | Round 6: Papadopoulos, Georgios - Oikonomopoulos, Filippos | Sicilian Defense: Kalashnikov Variation | |
| Aug 28, 2025 | Oikonomopoulos | ½–½ | Kapnisis | Round 4: Oikonomopoulos, Filippos - Kapnisis, Spyridon | Sicilian Defense: Kalashnikov Variation | |
| Jul 28, 2025 | Durak | 1–0 | Oikonomopoulos | Round 1: Durak, Can - Oikonomopoulos, Filippos | King's Indian Defense: Makogonov Variation | |
| Jul 12, 2025 | Skarlas | 0–1 | Oikonomopoulos | Round 9: Skarlas, Vasileios - Oikonomopoulos, Filippos | Sicilian Defense | |
| Jul 11, 2025 | Oikonomopoulos | ½–½ | Misthos | Round 8: Oikonomopoulos, Filippos - Misthos, Alexandros | Caro-Kann Defense: Classical Variation | |
| Jul 10, 2025 | Bougas | ½–½ | Oikonomopoulos | Round 7: Bougas, Georgios - Oikonomopoulos, Filippos | Sicilian Defense: Taimanov Variation | |
| Jul 9, 2025 | Oikonomopoulos | 1–0 | Marinidis | Round 5: Oikonomopoulos, Filippos - Marinidis, Stavros | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 8, 2025 | Misios | 0–1 | Oikonomopoulos | Round 4: Misios, Konstantinos - Oikonomopoulos, Filippos | Sicilian Defense: Kalashnikov Variation | |
| Jul 6, 2025 | Oikonomopoulos | ½–½ | Tselepis | Round 6: Oikonomopoulos, Filippos - Tselepis, Ioannis | Sicilian Defense: Najdorf Variation, Opocensky Variation, Modern Line | |
| Jul 6, 2025 | Oikonomopoulos | ½–½ | Kalogridakis | Final: Oikonomopoulos, Filippos - Kalogridakis, Georgios | Sicilian Defense: Moscow Variation | |
| Jul 5, 2025 | Poupalos | 1–0 | Oikonomopoulos | Semi-Finals: Poupalos, Nikolaos - Oikonomopoulos, Filippos | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 22, 2025 | Kolytas | ½–½ | Oikonomopoulos | 43rd Hybrid Greek Cup F8 | King's Indian Defense: Smyslov Variation | |
| Jun 21, 2025 | Oikonomopoulos | 1–0 | Megagiannis | Round 8: Oikonomopoulos, Filippos - Megagiannis, Maximos | Sicilian Defense: Taimanov Variation | |
| Jun 20, 2025 | Zavrakidis | ½–½ | Oikonomopoulos | Round 7: Zavrakidis, Nikolaos - Oikonomopoulos, Filippos | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 19, 2025 | Oikonomopoulos | 1–0 | Mavrogeorgos | Round 6: Oikonomopoulos, Filippos - Mavrogeorgos, Ilias | Sicilian Defense: Four Knights Variation | |
| Jun 18, 2025 | Pitsakis | 1–0 | Oikonomopoulos | Round 5: Pitsakis, Ilias - Oikonomopoulos, Filippos | King's Indian Defense: Fianchetto Variation, Larsen Defense | |
| Jun 16, 2025 | Kazantzoglou | 0–1 | Oikonomopoulos | Round 3: Kazantzoglou, Stefanos - Oikonomopoulos, Filippos | Sicilian Defense: French Variation, Westerinen Attack | |
| Jun 15, 2025 | Oikonomopoulos | 1–0 | Poullas | Round 2: Oikonomopoulos, Filippos - Poullas, Antonis | Sicilian Defense: Najdorf Variation | |
| Jun 14, 2025 | Athanasopoulos | 0–1 | Oikonomopoulos | Round 1: Athanasopoulos, Georgios 45299 - Oikonomopoulos, Filippos | King's Indian Defense: Orthodox Variation | |
| Jun 14, 2025 | Oikonomopoulos | 0–1 | Alexiadis | Round 4: Oikonomopoulos, Filippos - Alexiadis, Hristos | Sicilian Defense: Scheveningen Variation, English Attack, with f3 | |
| Jun 1, 2025 | Poupalos | ½–½ | Oikonomopoulos | Round 6: Poupalos, Nikolaos - Oikonomopoulos, Filippos | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| May 31, 2025 | Deligiannis | ½–½ | Oikonomopoulos | Round 5: Deligiannis, Christos Nikolaos - Oikonomopoulos, Filippos | King's Indian Defense: Normal Variation, Standard Development | |
| Apr 13, 2025 | Oikonomopoulos | 0–1 | Alexakis | 13th Open Grand Prix, by SOXalandriou (Rapid) | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Apr 13, 2025 | Alexakis | 1–0 | Oikonomopoulos | 13th Open Grand Prix, by SOXalandriou (Blitz) | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 13, 2025 | Vassis | 0–1 | Oikonomopoulos | 13th Open Grand Prix, by SOXalandriou (Blitz) | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Aug 31, 2024 | Oikonomopoulos | 1–0 | Papai | EYCC 2024 - O12 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Aug 30, 2024 | Peglau | 0–1 | Oikonomopoulos | EYCC 2024 - O12 | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Aug 28, 2024 | Kiryttopoulos | 1–0 | Oikonomopoulos | EYCC 2024 - O12 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Aug 23, 2024 | Oikonomopoulos | 0–1 | Garakhanov | EYCC 2024 - O12 | Sicilian Defense: Najdorf Variation | |
| Aug 22, 2024 | Chompas | 0–1 | Oikonomopoulos | EYCC 2024 - O12 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 10, 2024 | Danezis | 0–1 | Oikonomopoulos | Greek League 2024 | East Indian Defense | |
| Jul 9, 2024 | Oikonomopoulos | 1–0 | Gkougkoustamos Sotirios | Greek League 2024 | Scotch Game: Potter Variation | |
| Jul 8, 2024 | Kiryttopoulos | 1–0 | Oikonomopoulos | Greek League 2024 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jul 7, 2024 | Oikonomopoulos | 1–0 | Kazakis | Greek League 2024 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Jul 6, 2024 | Misios | 1–0 | Oikonomopoulos | Greek League 2024 | Sicilian Defense: Kramnik Variation | |
| Jul 5, 2024 | Oikonomopoulos | 1–0 | Manolopoulos | Greek League 2024 | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jul 4, 2024 | Volani | 0–1 | Oikonomopoulos | Greek League 2024 | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 26, 2024 | Christodoulakis | 0–1 | Oikonomopoulos | Round 7: Christodoulakis, Michail Em - Oikonomopoulos, Filippos | London System | |
| Jun 25, 2024 | Oikonomopoulos | 1–0 | Tzimas | Round 6: Oikonomopoulos, Filippos - Tzimas, Konstantinos | Sicilian Defense: Najdorf Variation | |
| Jun 25, 2024 | Kountrias | ½–½ | Oikonomopoulos | Round 5: Kountrias, Kosmas Ioannis - Oikonomopoulos, Filippos | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Jun 24, 2024 | Oikonomopoulos | 1–0 | Kiryttopoulos | Round 4: Oikonomopoulos, Filippos - Kiryttopoulos, Ioannis | Sicilian Defense: Lasker-Pelikan Variation | |
| Jun 21, 2024 | Anagnostopoulos | 0–1 | Oikonomopoulos | Round 9: Anagnostopoulos, Panagiotis - Oikonomopoulos, Filippos | Sicilian Defense: Taimanov Variation | |
| Jun 21, 2024 | Oikonomopoulos | 1–0 | Chompas | Round 8: Oikonomopoulos, Filippos - Chompas, Vasileios | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jun 21, 2024 | Kazakis | ½–½ | Oikonomopoulos | Round 3: Kazakis, Mattheos Konstantinos - Oikonomopoulos, Filippos | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jun 21, 2024 | Oikonomopoulos | 1–0 | Skarlas | Round 2: Oikonomopoulos, Filippos - Skarlas, Vasileios | Scotch Game: Schmidt Variation | |
| Jun 21, 2024 | Andreou | 0–1 | Oikonomopoulos | Round 1: Andreou, Jonas - Oikonomopoulos, Filippos | Sicilian Defense: Closed, Traditional | |
| Jun 21, 2023 | Ana Tadic | * | Oikonomopoulos | Silver Lake Open | ? | |
| Jun 20, 2023 | Oikonomopoulos | * | Furman | Silver Lake Open | ? | |
| Jun 20, 2023 | Oikonomopoulos | * | Yilmaz | Silver Lake Open | ? | |
| Jun 20, 2023 | Ethan Guo | * | Oikonomopoulos | Silver Lake Open | ? | |
| Jun 19, 2023 | Oikonomopoulos | * | Yilmaz | Silver Lake Open | ? | |
| Aug 17, 2022 | Oikonomopoulos | 1–0 | Skodras | National Greek Team Championship | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Aug 16, 2022 | Gkavardinas | 0–1 | Oikonomopoulos | National Greek Team Championship | Sicilian Defense: Prins Variation | |
| Aug 15, 2022 | Oikonomopoulos | ½–½ | Merkouropoulos | National Greek Team Championship | Nimzo-Indian Defense: Normal Variation, Gligoric System | |
| Aug 14, 2022 | Oikonomopoulos | 1–0 | Pitsakis | National Greek Team Championship | King's Indian Attack | |
| Aug 13, 2022 | Oikonomopoulos | 1–0 | Ntounias | National Greek Team Championship | Nimzo-Indian Defense: St. Petersburg Variation | |
| Aug 13, 2022 | Katsanis | 1–0 | Oikonomopoulos | National Greek Team Championship | Nimzo-Indian Defense | |
| Aug 12, 2022 | Kartsakis | 0–1 | Oikonomopoulos | National Greek Team Championship | Sicilian Defense: Taimanov Variation, Bastrikov Variation | |
| Jul 24, 2022 | Wolf | 0–1 | Oikonomopoulos | 15th Paleochora Open | ? | |
| Jul 23, 2022 | Oikonomopoulos | * | Iasman | 15th Paleochora Open | ? | |
| Jul 22, 2022 | Sideris | * | Oikonomopoulos | 15th Paleochora Open | ? | |
| Jul 20, 2022 | Tzagarakis | * | Oikonomopoulos | 15th Paleochora Open | ? | |
| Jul 18, 2022 | Vojtek | 1–0 | Oikonomopoulos | 15th Paleochora Open | ? | |
| Jul 17, 2022 | Oikonomopoulos | ½–½ | Ayza Leon | 15th Paleochora Open | ? | |
| Sep 8, 2021 | Oikonomopoulos | 1–0 | Deliezos | Greek Team Championship | Queen's Pawn Game: Accelerated London System | |
| Sep 8, 2021 | Soukarie | 0–1 | Oikonomopoulos | Greek Team Championship | Sicilian Defense: Alapin Variation | |
| Jul 29, 2021 | Oikonomopoulos | * | Verbin | 14th Paleochora International Tournament | ? | |
| Jul 27, 2021 | Oikonomopoulos | * | Eid | 13th International Tournament of Paleochora | ? | |
| Jul 26, 2021 | Hristodoulaki | * | Oikonomopoulos | 14th Paleochora International Tournament | ? | |
| Jul 26, 2021 | Hristodoulaki | * | Oikonomopoulos | 13th International Tournament of Paleochora | ? | |