| Jun 26, 2026 | Gkavardinas | 1–0 | Vesa | Round 11: Gkavardinas, Antonios - Vesa, Mikke | Italian Game: Giuoco Pianissimo, Italian Four Knights Variation | |
| Jun 25, 2026 | Kodiri | 1–0 | Gkavardinas | Round 10: Kodiri, Pairavi - Gkavardinas, Antonios | Bogo-Indian Defense: Retreat Variation | |
| Jun 24, 2026 | Gkavardinas | 1–0 | Zizic | Round 9: Gkavardinas, Antonios - Zizic, Djordje | Sicilian Defense: Prins Variation | |
| Jun 23, 2026 | Zhu | 0–1 | Gkavardinas | U16 Open | Nimzo-Indian Defense: Normal Variation | |
| Jun 22, 2026 | Gkavardinas | ½–½ | Simonsen | Round 7: Gkavardinas, Antonios - Simonsen, David Mindestrommen | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Jun 20, 2026 | Soghomonyan | 1–0 | Gkavardinas | Round 6: Soghomonyan, Tigran - Gkavardinas, Antonios | Sicilian Defense: Moscow Variation | |
| Jun 19, 2026 | Gkavardinas | ½–½ | Skembris | Round 5: Gkavardinas, Antonios - Skembris, Simon Max | Petrov's Defense: Nimzowitsch Attack | |
| Jun 18, 2026 | Dijokas | 0–1 | Gkavardinas | Round 4: Dijokas, Jokubas - Gkavardinas, Antonios | Sicilian Defense: Moscow Variation | |
| Jun 17, 2026 | Gkavardinas | 0–1 | Danila | Round 3: Gkavardinas, Antonios - Danila, Tudor-Gabriel | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 16, 2026 | Curcio | ½–½ | Gkavardinas | Round 2: Curcio, Luciano Joel - Gkavardinas, Antonios | King's Indian Attack: Keres Variation | |
| Jun 15, 2026 | Gkavardinas | 1–0 | Chiari | Round 1: Gkavardinas, Antonios - Chiari, Cosimo | Sicilian Defense: Najdorf Variation, English Attack | |
| Apr 19, 2026 | Gkavardinas | 1–0 | O`cuilleanain | Round 9: Gkavardinas, Antonios - O`cuilleanain, Oisin | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Apr 18, 2026 | Manucharyan | 0–1 | Gkavardinas | Round 8: Manucharyan, Andriy - Gkavardinas, Antonios | Queen's Indian Defense: Petrosian Variation, Farago Defense | |
| Apr 17, 2026 | Gkavardinas | ½–½ | Sofronie | Round 7: Gkavardinas, Antonios - Sofronie, Vladimir | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Apr 16, 2026 | Michaelides | ½–½ | Gkavardinas | Round 6: Michaelides, Konstantinos - Gkavardinas, Antonios | Queen's Pawn Game: London System | |
| Apr 16, 2026 | Gkavardinas | ½–½ | Isaakidis | Round 5: Gkavardinas, Antonios - Isaakidis, Alexandros | Caro-Kann Defense: Classical Variation, Lobron System | |
| Apr 14, 2026 | Gkavardinas | 0–1 | Harikrishnan.A.Ra | Round 3: Gkavardinas, Antonios - Harikrishnan.A.Ra | French Defense: Advance Variation | |
| Apr 13, 2026 | Gkavardinas | * | Constantinou | Round 1: Gkavardinas, Antonios - Constantinou, Samuel Johannes | ? | |
| Mar 23, 2026 | Gkavardinas | ½–½ | Vassis | 3rd International Open Chess Tournament of Katerini Group A | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 23, 2026 | Ntounias | 0–1 | Gkavardinas | 3rd International Open Chess Tournament of Katerini Group A | Caro-Kann Defense: Endgame Offer | |
| Mar 22, 2026 | Ioannidis | 1–0 | Gkavardinas | 3rd International Open Chess Tournament of Katerini Group A | Nimzo-Indian Defense: Classical Variation, Keres Defense | |
| Mar 22, 2026 | Gkavardinas | 1–0 | Kalogridis | 3rd International Open Chess Tournament of Katerini Group A | Sicilian Defense: Prins Variation | |
| Mar 21, 2026 | Gkavardinas | ½–½ | Alexakis | 3rd International Open Chess Tournament of Katerini Group A | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Feb 23, 2026 | Asici | 0–1 | Gkavardinas | Round 7: Asici, Poyraz Efe - Gkavardinas, Antonios | Queen's Indian Defense: Fianchetto Variation, Check Variation, Intermezzo Line | |
| Feb 22, 2026 | Tzortzatos | 1–0 | Gkavardinas | Round 5: Tzortzatos, Dimosthenis Panagiot - Gkavardinas, Antonios | Sicilian Defense: Najdorf Variation, Main Line | |
| Feb 21, 2026 | Gkavardinas | ½–½ | Stoimenidis | Round 4: Gkavardinas, Antonios - Stoimenidis, Dimitrios | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Feb 21, 2026 | Palao | 0–1 | Gkavardinas | Round 3: Palao, Adriana - Gkavardinas, Antonios | Sicilian Defense: Moscow Variation | |
| Feb 19, 2026 | Samakas | ½–½ | Gkavardinas | Round 1: Samakas, Anastasios - Gkavardinas, Antonios | Sicilian Defense: Najdorf Variation, Main Line | |
| Nov 1, 2025 | Nainys | 1–0 | Gkavardinas | Round 4: Nainys, Zanas - Gkavardinas, Antonios | Queen's Gambit Declined: Three Knights Variation | |
| Oct 31, 2025 | Gkavardinas | ½–½ | Agasarov | Round 3: Gkavardinas, Antonios - Agasarov, Benik | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Oct 12, 2025 | Dotzer | 1–0 | Gkavardinas | Round 8: Dotzer, Lukas - Gkavardinas, Antonios | Queen's Gambit Declined: Charousek Variation | |
| Jul 30, 2025 | Plat | 1–0 | Gkavardinas | Round 4: Plat, Vojtech - Gkavardinas, Antonios | English Opening: Agincourt Defense | |
| Jul 21, 2025 | Gkavardinas | 0–1 | Itgelt | Round 7: Gkavardinas, Antonios - Itgelt, Khuyagtsogt | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 20, 2025 | Milanovic | ½–½ | Gkavardinas | Round 6: Milanovic, Danilo - Gkavardinas, Antonios | King's Indian Attack: Keres Variation | |
| Jul 18, 2025 | Gkavardinas | ½–½ | Vagman | Round 5: Gkavardinas, Antonios - Vagman, Roy | Sicilian Defense: Najdorf Variation, English Attack | |
| Jul 16, 2025 | Gkavardinas | 0–1 | Damjanovic | Round 3: Gkavardinas, Antonios - Damjanovic, Vuk | Italian Game: Paris Defense | |
| Jul 4, 2025 | Gkavardinas | 1–0 | Tzortzatos | Round 7: Gkavardinas, Antonios - Tzortzatos, Dimosthenis Panagiot | Sicilian Defense: Prins Variation | |
| Jul 3, 2025 | Gkavardinas | 1–0 | Kazantzoglou | Round 6: Gkavardinas, Antonios - Kazantzoglou, Stefanos | Italian Game: Two Knights Defense, Modern Bishop's Opening | |
| Jul 3, 2025 | Petridis | 0–1 | Gkavardinas | Round 4: Petridis, Dimitrios Panagiotis - Gkavardinas, Antonios | Sicilian Defense: Moscow Variation | |
| Jul 3, 2025 | Gkavardinas | 0–1 | Georgiadis | Round 3: Gkavardinas, Antonios - Georgiadis, Anastasios | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 3, 2025 | Gkavardinas | 1–0 | Tsakiris | Round 2: Gkavardinas, Antonios - Tsakiris, Haralambos | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 3, 2025 | Gkavardinas | 1–0 | Stavropoulos | Round 1: Gkavardinas, Antonios - Stavropoulos, Sotirios | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 3, 2025 | Gkavardinas | 1–0 | Diakoloukas | Round 5: Gkavardinas, Antonios - Diakoloukas, Theodosios | Philidor Defense: Lion Variation | |
| Jun 8, 2025 | Alexakis | 1–0 | Gkavardinas | 43rd Hybrid Greek Cup 2025 F16 | Sicilian Defense: Modern Variations, Main Line | |
| May 29, 2025 | Gkavardinas | ½–½ | Javadov | sofia25 | French Defense: Advance Variation, Euwe Variation | |
| May 28, 2025 | Elgersma | 1–0 | Gkavardinas | sofia25 | Sicilian Defense: Moscow Variation | |
| May 27, 2025 | Gkavardinas | ½–½ | Avsar | sofia25 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| May 26, 2025 | Chkhaidze | 0–1 | Gkavardinas | sofia25 | King's Indian Attack | |
| May 26, 2025 | Gkavardinas | 0–1 | Tilicheev | sofia25 | Sicilian Defense: Pin Variation, Koch Variation | |
| May 25, 2025 | Aynaoglu | 0–1 | Gkavardinas | sofia25 | Bogo-Indian Defense: Retreat Variation | |
| May 24, 2025 | Gkavardinas | 1–0 | Ersoz | sofia25 | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Gurgenidze Variation | |
| May 23, 2025 | Doychev | 1–0 | Gkavardinas | sofia25 | Sicilian Defense: Najdorf Variation, Main Line | |
| May 23, 2025 | Gkavardinas | 1–0 | Marzakov | sofia25 | Sicilian Defense: Dragon Variation, Fianchetto Variation | |
| Apr 21, 2025 | Gkavardinas | ½–½ | De Boer | Round 8: Gkavardinas, Antonios - De Boer, Eelke | Sicilian Defense: Four Knights Variation, Exchange Variation | |
| Apr 21, 2025 | Kolb | ½–½ | Gkavardinas | Grenke Chess Open A | Queen's Gambit Declined: Charousek Variation | |
| Apr 19, 2025 | Gkavardinas | 0–1 | Maksimovic | Round 4: Gkavardinas, Antonios - Maksimovic, Bojan | Sicilian Defense: Taimanov Variation | |
| Aug 31, 2024 | Gkavardinas | ½–½ | Cieslak | EYCC 2024 - O14 | Sicilian Defense: Najdorf Variation, English Attack | |
| Aug 30, 2024 | Gubin | 0–1 | Gkavardinas | EYCC 2024 - O14 | English Opening: Agincourt Defense | |
| Aug 29, 2024 | Gkavardinas | 1–0 | Ghazaryan | EYCC 2024 - O14 | Sicilian Defense: Najdorf Variation, English Attack | |
| Aug 28, 2024 | Balint | 1–0 | Gkavardinas | EYCC 2024 - O14 | Sicilian Defense: Chekhover Variation | |
| Aug 26, 2024 | Gkavardinas | 1–0 | Alizada | EYCC 2024 - O14 | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Aug 25, 2024 | Ilinca | 1–0 | Gkavardinas | EYCC 2024 - O14 | Sicilian Defense: Alapin Variation | |
| Aug 24, 2024 | Gkavardinas | 1–0 | Stickler | EYCC 2024 - O14 | Italian Game: Giuoco Pianissimo, Normal | |
| Aug 23, 2024 | Malinowsky | 0–1 | Gkavardinas | EYCC 2024 - O14 | Sicilian Defense: Najdorf Variation, Main Line | |
| Aug 22, 2024 | Gkavardinas | 1–0 | Roubal | EYCC 2024 - O14 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Jul 28, 2024 | Gkavardinas | 0–1 | Livaic | Round 1: Gkavardinas, Antonios - Livaic, Leon | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Jul 10, 2024 | Gkavardinas | ½–½ | Sioutis | Greek League 2024 | Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack | |
| Jul 9, 2024 | Gkavardinas | ½–½ | Poupalos | Greek League 2024 | Sicilian Defense: Najdorf Variation, English Attack | |
| Jul 8, 2024 | Papaioannou | 0–1 | Gkavardinas | Greek League 2024 | English Opening: Agincourt Defense | |
| Jul 7, 2024 | Gkavardinas | ½–½ | Raptis | Greek League 2024 | Modern Defense: Standard Line | |
| Jul 7, 2024 | Gkavardinas | 1–0 | Lampropoulos | Greek League 2024 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 6, 2024 | Gkavardinas | 1–0 | Kazantzoglou | Greek League 2024 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jul 5, 2024 | Magkalakis | ½–½ | Gkavardinas | Greek League 2024 | Caro-Kann Defense: Exchange Variation | |
| Jul 5, 2024 | Gkavardinas | 1–0 | Karakasidis | Greek League 2024 | French Defense: Tarrasch Variation, Eliskases Variation | |
| Mar 28, 2024 | Gkavardinas | 1–0 | Fernandez Guillen | Round 2: Gkavardinas, Antonios - Fernandez Guillen, Ernesto J. | Italian Game: Classical Variation, Giuoco Pianissimo, with d6 | |
| Jan 4, 2024 | Gkavardinas | 1–0 | Meurs | Cracovia 2023 Open A | Italian Game: Giuoco Pianissimo, Normal | |
| Jan 3, 2024 | Loftgaard | ½–½ | Gkavardinas | Cracovia 2023 Open A | Caro-Kann Defense: Advance Variation | |
| Jan 2, 2024 | Gkavardinas | ½–½ | Baum | Cracovia 2023 Open A | Italian Game: Giuoco Pianissimo, Normal | |
| Jan 2, 2024 | Kyc | 0–1 | Gkavardinas | Cracovia 2023 Open A | Caro-Kann Defense: Panov Attack, Modern Defense | |
| Dec 31, 2023 | Sofronie | 1–0 | Gkavardinas | Cracovia 2023 Open A | Queen's Pawn Game: Accelerated London System | |
| Dec 30, 2023 | Gkavardinas | 1–0 | Leskiewicz | Cracovia 2023 Open A | Caro-Kann Defense | |
| Dec 29, 2023 | Keinanen | 1–0 | Gkavardinas | Cracovia 2023 Open A | Caro-Kann Defense: Classical Variation, Lobron System | |
| Dec 28, 2023 | Gkavardinas | 0–1 | Kucza | Cracovia 2023 Open A | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Dec 27, 2023 | Skytte | ½–½ | Gkavardinas | Cracowia 2023 Open A | Caro-Kann Defense: Accelerated Panov Attack, Modern Variation | |
| Nov 24, 2023 | Gkavardinas | 0–1 | Coicev | WYCC_2023_Open_U14 | Sicilian Defense: Scheveningen Variation, English Attack, with f3 | |
| Nov 23, 2023 | Panda | 0–1 | Gkavardinas | WYCC_2023_Open_U14 | Queen's Gambit Declined: Harrwitz Attack, Two Knights Defense, Blockade Line | |
| Nov 22, 2023 | Fan | ½–½ | Gkavardinas | WYCC_2023_Open_U14 | Queen's Pawn Game: London System | |
| Nov 21, 2023 | Gkavardinas | 0–1 | Arca | WYCC_2023_Open_U14 | Caro-Kann Defense: Classical Variation, Lobron System | |
| Nov 20, 2023 | Gkavardinas | 1–0 | Lin | WYCC_2023_Open_U14 | Sicilian Defense: Richter-Rauzer Variation, Neo-Modern Variation | |
| Nov 18, 2023 | Poljan | 0–1 | Gkavardinas | WYCC_2023_Open_U14 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Nov 17, 2023 | Gkavardinas | 0–1 | Yun | WYCC_2023_Open_U14 | Sicilian Defense: Scheveningen Variation, English Attack, with f3 | |
| Nov 16, 2023 | Ral Lustig | 0–1 | Gkavardinas | u14 | Queen's Gambit Declined: Charousek Variation | |
| Nov 14, 2023 | Escudero Ribo | 1–0 | Gkavardinas | u14 | Queen's Gambit Declined: Charousek Variation | |
| Nov 13, 2023 | Gkavardinas | 1–0 | Mazzi | u14 | Sicilian Defense: Najdorf Variation, English Attack | |
| Jan 13, 2023 | Gkavardinas | 1–0 | Kuznecova | Prague Open | Czech Tour | ? | |
| Jan 12, 2023 | Gkavardinas | * | Mgeladze | Prague Open | Czech Tour | ? | |
| Jan 11, 2023 | Toncheva | 1–0 | Gkavardinas | Prague Open | Czech Tour | Queen's Gambit Declined: Charousek Variation | |
| Jan 10, 2023 | Gkavardinas | * | Rousek | Prague Open | Czech Tour | ? | |
| Jan 9, 2023 | Ochedzan | 1–0 | Gkavardinas | Prague Open | Czech Tour | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Jan 7, 2023 | Gkavardinas | 0–1 | Neuman | Prague Open | Czech Tour | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |