| Mar 6, 2026 | Gkoumas | ½–½ | Zhao | PICF 2026 - KAREL JANECEK Open | Ruy Lopez: Closed, Martinez Variation | |
| Mar 5, 2026 | Gkoumas | 1–0 | Hulka | PICF 2026 - KAREL JANECEK Open | Ruy Lopez: Morphy Defense, Classical Defense Deferred | |
| Mar 4, 2026 | Jares | 0–1 | Gkoumas | PICF 2026 - KAREL JANECEK Open | King's Indian Attack, with e6 | |
| Feb 27, 2026 | Gkoumas | ½–½ | Durana | PICF 2026 - KAREL JANECEK Open | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Sep 16, 2025 | Gkoumas | * | Iturrizaga Bonelli | Round 7: Gkoumas, Georgios - Iturrizaga Bonelli, Eduardo | Dutch Defense: Classical Variation | |
| Jul 26, 2025 | Michaelides | 0–1 | Gkoumas | 41 Open Internacional d'Escacs d'Andorra 2025 | English Opening: Symmetrical Variation, Anti-Benoni Variation, Spielmann Defense | |
| Jul 25, 2025 | Gkoumas | ½–½ | Nielsen | 41 Open Internacional d'Escacs d'Andorra 2025 | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Jul 24, 2025 | Fiorito | ½–½ | Gkoumas | 41 Open Internacional d'Escacs d'Andorra 2025 | French Defense: Exchange Variation | |
| Jul 23, 2025 | Gkoumas | ½–½ | Meessen | 41 Open Internacional d'Escacs d'Andorra 2025 | Pirc Defense | |
| Jul 22, 2025 | Ostensen | ½–½ | Gkoumas | 41 Open Internacional d'Escacs d'Andorra 2025 | French Defense: Tarrasch Variation, Open System, Euwe-Keres Line | |
| Jul 21, 2025 | Gkoumas | 1–0 | Midoux | 41 Open Internacional d'Escacs d'Andorra 2025 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 20, 2025 | Skaar | ½–½ | Gkoumas | 41 Open Internacional d'Escacs d'Andorra 2025 | French Defense: Two Knights Variation | |
| Jul 19, 2025 | Gkoumas | 1–0 | Hafstad | 41 Open Internacional d'Escacs d'Andorra 2025 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 4, 2025 | Pavlidis | ½–½ | Gkoumas | Round 7: Pavlidis, Antonios - Gkoumas, Georgios | French Defense: Classical Variation | |
| Jul 3, 2025 | Gkoumas | ½–½ | Papaioannou | Round 6: Gkoumas, Georgios - Papaioannou, Ioannis | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Jul 3, 2025 | Tsaknakis | ½–½ | Gkoumas | Round 3: Tsaknakis, Zisis - Gkoumas, Georgios | Queen's Gambit Declined | |
| Jul 3, 2025 | Gkoumas | 1–0 | Kourousis | Round 2: Gkoumas, Georgios - Kourousis, Epameinondas | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Jul 3, 2025 | Naoum | 1–0 | Gkoumas | Round 1: Naoum, Spyridon - Gkoumas, Georgios | Bird Opening | |
| Jul 3, 2025 | Gkoumas | ½–½ | Kalogridis | Round 5: Gkoumas, Georgios - Kalogridis, Antonios | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 3, 2025 | Theodorou | 1–0 | Gkoumas | Round 4: Theodorou, Nikolas - Gkoumas, Georgios | King's Indian Attack | |
| Mar 7, 2025 | Gkoumas | ½–½ | Rubes | PICF 2025 - KAREL JANEČEK Open | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Mar 6, 2025 | Raja Rithvik R | ½–½ | Gkoumas | PICF 2025 - KAREL JANEČEK Open | French Defense: Exchange Variation | |
| Mar 5, 2025 | Klek | 0–1 | Gkoumas | PICF 2025 - KAREL JANEČEK Open | French Defense: Burn Variation | |
| Jan 3, 2025 | Skawinski | ½–½ | Gkoumas | Round 9: Skawinski, Arkadiusz - Gkoumas, Georgios | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jan 2, 2025 | Gkoumas | 1–0 | Casadio | Round 8: Gkoumas, Georgios - Casadio, Niccolo` | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Jan 1, 2025 | Zoncu | ½–½ | Gkoumas | Round 7: Zoncu, Roberto Alessio - Gkoumas, Georgios | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Oct 25, 2024 | Seitaj | 0–1 | Gkoumas | 39th European Chess Club Cup | Sicilian Defense: Alapin Variation, Smith-Morra Declined | |
| Oct 24, 2024 | Gkoumas | 0–1 | Ten Hertog | 39th European Chess Club Cup | Caro-Kann Defense: Advance Variation, Short Variation | |
| Oct 23, 2024 | Petrusic | 0–1 | Gkoumas | 39th European Chess Club Cup | Queen's Pawn Game: Torre Attack, Gossip Variation | |
| Oct 22, 2024 | Gkoumas | 1–0 | Bazakutsa | 39th European Chess Club Cup | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Oct 21, 2024 | Ortega Ruiz | ½–½ | Gkoumas | 39th European Chess Club Cup | Queen's Pawn Game: Colle System, Traditional Colle | |
| Oct 20, 2024 | Gkoumas | ½–½ | Gorshtein | 39th European Chess Club Cup | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Aug 6, 2024 | Mekhane | ½–½ | Gkoumas | Leca Chess Open 2024 | Queen's Pawn Game: London System | |
| Aug 5, 2024 | Gkoumas | 1–0 | Bouget | Leca Chess Open 2024 | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Aug 4, 2024 | Prie | 1–0 | Gkoumas | Leca Chess Open 2024 | Queen's Pawn Game: London System | |
| Aug 3, 2024 | Gkoumas | 1–0 | Ribeiro | Leca Chess Open 2024 | Ruy Lopez: Morphy Defense | |
| Aug 3, 2024 | Butkiewicz | ½–½ | Gkoumas | Leca Chess Open 2024 | Queen's Gambit Declined | |
| Aug 2, 2024 | Gkoumas | 1–0 | Briem | Leca Chess Open 2024 | Ruy Lopez: Berlin Defense | |
| Aug 1, 2024 | Gkoumas | 1–0 | Le Goff | Leca Chess Open 2024 | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Aug 1, 2024 | Ilinca | 1–0 | Gkoumas | Leca Chess Open 2024 | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Jul 31, 2024 | Pettersson | 0–1 | Gkoumas | Leca Chess Open 2024 | Queen's Gambit Declined: Austrian Defense | |
| Jul 10, 2024 | Alexakis | ½–½ | Gkoumas | Greek League 2024 | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 9, 2024 | Gkoumas | 1–0 | Kourkoulos-Arditis | Greek League 2024 | Sicilian Defense: Najdorf Variation, Traditional Line | |
| Jul 8, 2024 | Mastrovasilis | 1–0 | Gkoumas | Greek League 2024 | Nimzo-Indian Defense: Three Knights Variation | |
| Jul 7, 2024 | Kotrotsos | ½–½ | Gkoumas | Greek League 2024 | Rapport-Jobava System | |
| Jul 5, 2024 | Kalogridakis | ½–½ | Gkoumas | Greek League 2024 | Sicilian Defense: French Variation | |
| Jul 5, 2024 | Gkoumas | 1–0 | Papadopoulos | Greek League 2024 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jul 4, 2024 | Gkoumas | ½–½ | Pavlidis | Greek League 2024 | Ruy Lopez: Morphy Defense, Tarrasch Variation | |
| Mar 31, 2024 | Labiano Hernandez | ½–½ | Gkoumas | Round 7: Labiano Hernandez, Juan - Gkoumas, Georgios | Indian Defense | |
| Mar 29, 2024 | Beydullayeva | 1–0 | Gkoumas | Round 5: Beydullayeva, Govhar - Gkoumas, Georgios | Semi-Slav Defense | |
| Mar 29, 2024 | Gkoumas | ½–½ | Aronsson | Round 4: Gkoumas, Georgios - Aronsson, Marten | Four Knights Game: Spanish Variation | |
| Dec 31, 2024 | Gkoumas | ½–½ | Reza | Round 6: Gkoumas, Georgios - Reza, Wojciech | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Dec 30, 2024 | Adharsh K | ½–½ | Gkoumas | Round 5: Adharsh K - Gkoumas, Georgios | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation | |
| Dec 29, 2024 | Gkoumas | ½–½ | Skrbec | Round 4: Gkoumas, Georgios - Skrbec, Leon | Caro-Kann Defense: Two Knights Attack, Mindeno Variation | |
| Dec 29, 2024 | Sepehrkhoui | ½–½ | Gkoumas | Round 3: Sepehrkhoui, Ardeshir - Gkoumas, Georgios | Queen's Pawn Game: Symmetrical Variation | |
| Dec 28, 2024 | Gkoumas | 1–0 | Candian | Round 2: Gkoumas, Georgios - Candian, Lorenzo | Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred | |
| Aug 18, 2024 | Gkoumas | 0–1 | Sumets | Round 9: Gkoumas, Georgios - Sumets, Andrey | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Aug 17, 2024 | Sasikiran | ½–½ | Gkoumas | Round 8: Sasikiran, Krishnan - Gkoumas, Georgios | Semi-Slav Defense: Stoltz Variation | |
| Aug 16, 2024 | Gkoumas | ½–½ | Svane | Round 7: Gkoumas, Georgios - Svane, Frederik | Ruy Lopez: Open | |
| Aug 15, 2024 | Waldhausen Gordon | 0–1 | Gkoumas | Round 6: Waldhausen Gordon, Frederick - Gkoumas, Georgios | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Aug 14, 2024 | Gkoumas | 1–0 | Froeyman | Round 5: Gkoumas, Georgios - Froeyman, Helmut | Ruy Lopez: Closed, Martinez Variation | |
| Aug 13, 2024 | Knudsen | ½–½ | Gkoumas | Round 4: Knudsen, Simon - Gkoumas, Georgios | Sicilian Defense: Lasker-Pelikan Variation, Sveshnikov Variation | |
| Aug 11, 2024 | Lyutsinger | ½–½ | Gkoumas | Round 2: Lyutsinger, Iren - Gkoumas, Georgios | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Aug 10, 2024 | Gkoumas | 1–0 | Linde | Round 1: Gkoumas, Georgios - Linde, Wolfgang | Ruy Lopez: Closed, Pilnik Variation | |
| Aug 16, 2022 | Tzermiadianos | ½–½ | Gkoumas | National Greek Team Championship | King's Indian Defense: Semi-Classical Variation | |
| Aug 15, 2022 | Gkoumas | ½–½ | Kanakaris | National Greek Team Championship | Sicilian Defense: Najdorf Variation, Opocensky Variation | |
| Aug 14, 2022 | Gkoumas | 1–0 | Alexakis | National Greek Team Championship | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Aug 13, 2022 | Drakoulakos | 1–0 | Gkoumas | National Greek Team Championship | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Aug 12, 2022 | Gkoumas | 1–0 | Kouvidis | National Greek Team Championship | Sicilian Defense: French Variation, Westerinen Attack | |
| Jul 23, 2022 | Gkoumas | * | Vignesh N R | Sevilla Open | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Jul 22, 2022 | Lianes Garcia | * | Gkoumas | Sevilla Open | Sicilian Defense: Najdorf Variation | |
| Jul 21, 2022 | Gkoumas | 1–0 | Fernandez Guillen | Sevilla Open | Sicilian Defense: Najdorf Variation, English Attack | |
| Jul 20, 2022 | Lettieri | * | Gkoumas | Sevilla Open | Sicilian Defense: Najdorf Variation | |
| Jul 19, 2022 | Gkoumas | * | Holm | Sevilla Open | French Defense: Classical Variation, Steinitz Variation | |
| Jul 18, 2022 | Nikolov | ½–½ | Gkoumas | Sevilla Open | Nimzo-Indian Defense: Normal Variation, Schlechter Defense | |
| Jul 17, 2022 | Gkoumas | 1–0 | Fernandez Caballero | Sevilla Open | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jul 17, 2022 | Alba Fernandez | 0–1 | Gkoumas | Sevilla Open | King's Indian Defense: Makogonov Variation | |
| Jul 16, 2022 | Gkoumas | 1–0 | Barrero Ortega | Sevilla Open | Pirc Defense | |
| — | Gkoumas | 1–0 | Hernandez Leon | Ronda 2: Gkoumas, Georgios - Hernandez Leon, Alberto | Sicilian Defense: O'Kelly Variation, Venice System | |
| — | Gkoumas | ½–½ | Mathieu | Ronda 4: Gkoumas, Georgios - Mathieu, Phileas | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| — | Gkoumas | ½–½ | Zhukenov | Ronda 6: Gkoumas, Georgios - Zhukenov, Aituar | Philidor Defense: Lion Variation | |
| — | Gkoumas | 1–0 | Uzcategui Rodriguez | Ronda 8: Gkoumas, Georgios - Uzcategui Rodriguez, Alejandro | French Defense: Advance Variation, Paulsen Attack | |
| — | Gkoumas | ½–½ | Mazur | Ronda 10: Gkoumas, Georgios - Mazur, Stefan | Ruy Lopez: Closed, Martinez Variation | |
| — | Mesa Rodriguez | 0–1 | Gkoumas | Ronda 1: Mesa Rodriguez, Antonio - Gkoumas, Georgios | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| — | Fiskaaen | 0–1 | Gkoumas | Ronda 3: Fiskaaen, Martin Holten - Gkoumas, Georgios | Catalan Opening: Closed | |
| — | Breuil | ½–½ | Gkoumas | Ronda 5: Breuil, Tristan - Gkoumas, Georgios | French Defense: Classical Variation, Shirov-Anand Variation | |
| — | Dalaud | ½–½ | Gkoumas | Ronda 7: Dalaud, Dorian - Gkoumas, Georgios | Scotch Game: Tartakower Variation | |
| — | Movsziszian | ½–½ | Gkoumas | Ronda 9: Movsziszian, Karen - Gkoumas, Georgios | Scotch Game: Mieses Variation | |
