| Dec 30, 2025 | Bai | 1–0 | Halkias | World Blitz 2025 Open | Trompowsky Attack | |
| Dec 30, 2025 | Halkias | 1–0 | Altini | World Blitz 2025 Open | Queen's Pawn Game: Symmetrical Variation | |
| Dec 30, 2025 | Donchenko | 1–0 | Halkias | World Blitz 2025 Open | Sicilian Defense: Moscow Variation | |
| Dec 30, 2025 | Halkias | 1–0 | Davtyan | World Blitz 2025 Open | Catalan Opening: Open Defense, Classical Line | |
| Dec 30, 2025 | Kevlishvili | 1–0 | Halkias | World Blitz 2025 Open | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Dec 30, 2025 | Halkias | 1–0 | Musovic | World Blitz 2025 Open | English Opening: King's English Variation, Four Knights Variation, Quiet Line | |
| Dec 29, 2025 | Bilguun | 1–0 | Halkias | World Blitz 2025 Open | Sicilian Defense: Closed, Traditional | |
| Dec 29, 2025 | Halkias | 1–0 | Al Hosani | World Blitz 2025 Open | Old Indian Defense: Normal Variation | |
| Dec 29, 2025 | Rami | 0–1 | Halkias | World Blitz 2025 Open | Indian Defense: Knights Variation | |
| Dec 29, 2025 | Halkias | 0–1 | Warmerdam | World Blitz 2025 Open | Bogo-Indian Defense: Retreat Variation | |
| Dec 29, 2025 | Halkias | 1–0 | Berend | World Blitz 2025 Open | Catalan Opening: Open Defense | |
| Dec 29, 2025 | Wojtaszek | 1–0 | Halkias | World Blitz 2025 Open | Queen's Pawn Game: Symmetrical Variation, Pseudo-Catalan | |
| Dec 29, 2025 | Amin | 1–0 | Halkias | World Blitz 2025 Open | King's Indian Attack | |
| Dec 29, 2025 | Halkias | 0–1 | Dardha | World Blitz 2025 Open | Zukertort Opening: Queenside Fianchetto Variation | |
| Dec 29, 2025 | Hakobyan | ½–½ | Halkias | World Blitz 2025 Open | Italian Game: Giuoco Pianissimo, Normal | |
| Dec 29, 2025 | Halkias | 1–0 | Suleymenov | World Blitz 2025 Open | Queen's Pawn Game: Zukertort Variation | |
| Dec 29, 2025 | Amar | 1–0 | Halkias | World Blitz 2025 Open | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Dec 29, 2025 | Halkias | 1–0 | Al Mashikhi | World Blitz 2025 Open | English Opening: Symmetrical Variation, Four Knights Variation | |
| Dec 28, 2025 | Praggnanandhaa R | 1–0 | Halkias | World Blitz 2025 Open | Sicilian Defense: Najdorf Variation | |
| Dec 28, 2025 | Rakotomaharo | 0–1 | Halkias | WRBC 2025 Rapid Open | Sicilian Defense: Lasker-Pelikan Variation | |
| Dec 28, 2025 | Halkias | ½–½ | Harikrishnan.A.Ra | WRBC 2025 Rapid Open | Slav Defense: Czech Variation, Carlsbad Variation | |
| Dec 28, 2025 | Al Hosani | 0–1 | Halkias | WRBC 2025 Rapid Open | Sicilian Defense: Najdorf Variation | |
| Dec 28, 2025 | Halkias | 0–1 | Ansat | WRBC 2025 Rapid Open | English Opening: Agincourt Defense, Bogoljubow Defense | |
| Dec 27, 2025 | Cunha | 0–1 | Halkias | WRBC 2025 Rapid Open | Sicilian Defense: Old Sicilian | |
| Dec 27, 2025 | Halkias | 0–1 | Sankalp Gupta | WRBC 2025 Rapid Open | Catalan Opening: Closed | |
| Dec 27, 2025 | Musovic | 0–1 | Halkias | WRBC 2025 Rapid Open | Anderssen's Opening | |
| Dec 27, 2025 | Halkias | ½–½ | Harshavardhan G B | WRBC 2025 Rapid Open | English Opening: Romanishin Gambit | |
| Dec 26, 2025 | Al-Janahi | 0–1 | Halkias | WRBC 2025 Rapid Open | Nimzo-Indian Defense: Normal Variation, Classical Defense | |
| Dec 26, 2025 | Suleimen | 1–0 | Halkias | WRBC 2025 Rapid Open | Sicilian Defense: Kalashnikov Variation | |
| Dec 26, 2025 | Halkias | 0–1 | Sharan | WRBC 2025 Rapid Open | Catalan Opening: Closed | |
| Dec 26, 2025 | Firouzja | 1–0 | Halkias | WRBC 2025 Rapid Open | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Dec 26, 2025 | Halkias | ½–½ | Abdusattorov | WRBC 2025 Rapid Open | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Nov 23, 2025 | Halkias | ½–½ | Brankov | Asenovgrad 2025 | Queen's Gambit Accepted: Classical Defense, Main Line | |
| Nov 23, 2025 | Ivanov | ½–½ | Halkias | Asenovgrad 2025 | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Nov 23, 2025 | Halkias | ½–½ | Nikolov | Asenovgrad 2025 | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Nov 21, 2025 | Angelov | 0–1 | Halkias | Asenovgrad 2025 | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Nov 21, 2025 | Halkias | 1–0 | Hristov | Asenovgrad 2025 | English Opening: Symmetrical Variation | |
| Nov 21, 2025 | Georgiev | 1–0 | Halkias | Asenovgrad 2025 | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Nov 21, 2025 | Halkias | 1–0 | Stoyanov | Asenovgrad 2025 | King's Indian Defense: Orthodox Variation, Positional Defense | |
| Nov 21, 2025 | Dhulipalla Bala Chandra Prasad | 0–1 | Halkias | Asenovgrad 2025 | Sicilian Defense: Moscow Variation | |
| Nov 21, 2025 | Halkias | 1–0 | Tilicheev | Asenovgrad 2025 | Catalan Opening: Closed | |
| Nov 21, 2025 | Esmer | 0–1 | Halkias | Asenovgrad 2025 | Sicilian Defense: Kalashnikov Variation | |
| Nov 21, 2025 | Esmer | * | Halkias | Asenovgrad Rapid 2025 | ? | |
| Nov 21, 2025 | Halkias | 1–0 | Krastev | Asenovgrad 2025 | Queen's Pawn Game: Chigorin Variation | |
| Jul 4, 2025 | Alexakis | ½–½ | Halkias | Round 7: Alexakis, Dimitris - Halkias, Stelios | Ruy Lopez: Closed, Flohr System | |
| Jul 3, 2025 | Kotrotsos | ½–½ | Halkias | Round 6: Kotrotsos, Vasilios - Halkias, Stelios | Queen's Gambit Declined: Modern Variation | |
| Jul 3, 2025 | Tsaknakis | ½–½ | Halkias | Round 4: Tsaknakis, Zisis - Halkias, Stelios | Ruy Lopez: Closed, Breyer Defense, Zaitsev Hybrid | |
| Jul 3, 2025 | Stefanou | ½–½ | Halkias | Round 2: Stefanou, Dimitrios - Halkias, Stelios | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jul 3, 2025 | Halkias | 1–0 | Kaforos | Round 1: Halkias, Stelios - Kaforos, Dimitrios-Alkis | Semi-Slav Defense | |
| Jul 3, 2025 | Halkias | ½–½ | Naoum | Round 5: Halkias, Stelios - Naoum, Spyridon | Slav Defense: Exchange Variation | |
| Jul 3, 2025 | Halkias | ½–½ | Theodorou | Round 3: Halkias, Stelios - Theodorou, Nikolas | English Opening: Anglo-Indian Defense, King's Indian Formation, Double Fianchetto | |
| Jun 8, 2025 | Halkias | 1–0 | Nikolaidis | 43rd Hybrid Greek Cup 2025 F16 | Queen's Pawn Game: Symmetrical Variation | |
| Mar 16, 2025 | Halkias | 1–0 | Proutsalis | Round 1: Halkias, Stelios - Proutsalis, Marios Alexandros | Queen's Pawn Game: Symmetrical Variation | |
| Mar 16, 2025 | Halkias | 1–0 | Fragkos | 12th Open Grand Prix, by SOXalandriou (Rapid) | Catalan Opening: Closed, Botvinnik Variation | |
| Mar 16, 2025 | Halkias | ½–½ | Papadopoulos | 12th Open Grand Prix, by SOXalandriou (Rapid) | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Mar 16, 2025 | Halkias | 1–0 | Papadimitriou | 12th Open Grand Prix, by SOXalandriou (Blitz) | Semi-Slav Defense | |
| Mar 16, 2025 | Halkias | 1–0 | Kassios | 12th Open Grand Prix, by SOXalandriou (Blitz) | Catalan Opening: Open Defense | |
| Mar 16, 2025 | Halkias | 1–0 | Papadopoulos | 12th Open Grand Prix, by SOXalandriou (Blitz) | King's Indian Defense: Orthodox Variation | |
| Mar 16, 2025 | Papadimitriou | 0–1 | Halkias | 12th Open Grand Prix, by SOXalandriou (Rapid) | Rubinstein Opening: Bogoljubow Defense | |
| Mar 16, 2025 | Ergazakis | ½–½ | Halkias | 12th Open Grand Prix, by SOXalandriou (Rapid) | King's Indian Attack: Symmetrical Defense | |
| Mar 16, 2025 | Stavropoulos | 0–1 | Halkias | 12th Open Grand Prix, by SOXalandriou (Blitz) | Rubinstein Opening | |
| Mar 16, 2025 | Georgiadis | 0–1 | Halkias | 12th Open Grand Prix, by SOXalandriou (Blitz) | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Mar 16, 2025 | Ergazakis | 0–1 | Halkias | 12th Open Grand Prix, by SOXalandriou (Blitz) | King's Indian Attack | |
| Mar 12, 2023 | Halkias | 0–1 | Yuffa | European Championship | Slav Defense: Czech Variation, Krause Attack | |
| Mar 11, 2023 | Safarli | ½–½ | Halkias | European Individual Chess Championship 2023 | Sicilian Defense: Old Sicilian | |
| Mar 10, 2023 | Halkias | 1–0 | Ahmad | European Individual Chess Championship 2023 | Catalan Opening: Open Defense, Classical Line | |
| Mar 9, 2023 | Stremavicius | ½–½ | Halkias | European Individual Chess Championship 2023 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 8, 2023 | Halkias | ½–½ | Martirosyan | European Individual Chess Championship 2023 | Semi-Slav Defense | |
| Mar 7, 2023 | Indjic | ½–½ | Halkias | European Individual Chess Championship 2023 | English Opening: Agincourt Defense | |
| Mar 6, 2023 | Halkias | 1–0 | Arsovic | European Individual Chess Championship 2023 | Benoni Defense | |
| Mar 5, 2023 | Arsovic | ½–½ | Halkias | European Individual Chess Championship 2023 | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Mar 4, 2023 | Halkias | * | Glienke | European Championship | ? | |
| Nov 13, 2022 | Safarli | ½–½ | Halkias | 25th Open Bavarian Championship | Sicilian Defense: Modern Variations, Main Line | |
| Nov 12, 2022 | Halkias | 1–0 | Miller | 25th Open Bavarian Championship | King's Indian Defense: Orthodox Variation, Gligoric-Taimanov System | |
| Nov 11, 2022 | Halkias | ½–½ | Langheinrich | 25th Open Bavarian Championship | Indian Defense: Przepiorka Variation | |
| Nov 10, 2022 | Korobov | ½–½ | Halkias | 25th Open Bavarian Championship | Nimzo-Indian Defense: Normal Variation, Gligoric System, Bronstein Variation | |
| Nov 9, 2022 | Goldbeck | 0–1 | Halkias | 25th Open Bavarian Championship | Nimzo-Indian Defense: Normal Variation | |
| Nov 8, 2022 | Halkias | ½–½ | Sanal | 25th Open Bavarian Championship | Catalan Opening: Closed | |
| Nov 7, 2022 | Halkias | 1–0 | Rakhmangulova | 25th Open Bavarian Championship | King's Indian Defense: Orthodox Variation, Positional Defense | |
| Nov 6, 2022 | Ehrke | 0–1 | Halkias | 25th Open Bavarian Championship | Indian Defense | |
| Nov 5, 2022 | Halkias | 1–0 | Johansson | 25th Open Bavarian Championship | Catalan Opening: Closed | |
| Aug 17, 2022 | Halkias | ½–½ | Kalogeris | National Greek Team Championship | Slav Defense: Geller Gambit | |
| Aug 16, 2022 | Papaioannou | ½–½ | Halkias | National Greek Team Championship | Ruy Lopez: Closed, Flohr System | |
| Aug 15, 2022 | Halkias | ½–½ | Pavlidis | National Greek Team Championship | Four Knights Game: Scotch Variation Accepted | |
| Aug 14, 2022 | Halkias | 0–1 | Nikolaidis | National Greek Team Championship | Queen's Gambit Declined: Semi-Tarrasch Defense | |
| Aug 13, 2022 | Halkias | ½–½ | Lubbe | National Greek Team Championship | Catalan Opening: Closed | |
| Aug 13, 2022 | Tzoumbas | 0–1 | Halkias | National Greek Team Championship | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Aug 12, 2022 | Vlahos | 0–1 | Halkias | National Greek Team Championship | English Opening: Great Snake Variation | |
| Aug 2, 2022 | Schroeder | 1–0 | Halkias | 31st Internation Chess Tournament | Sicilian Defense: Najdorf Variation, Zagreb Variation | |
| Aug 1, 2022 | Halkias | 1–0 | Tarhan | 31st Internation Chess Tournament | Catalan Opening: Open Defense, Classical Line | |
| Jul 31, 2022 | Halkias | ½–½ | Trimitzios | 31st Internation Chess Tournament | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Jul 30, 2022 | Bharath | 1–0 | Halkias | 31st Internation Chess Tournament | Caro-Kann Defense: Exchange Variation | |
| Jul 29, 2022 | Halkias | ½–½ | Kilic | 31st Internation Chess Tournament | Catalan Opening: Closed | |
| Jul 28, 2022 | Kourkoulos-Arditis | ½–½ | Halkias | 31st Internation Chess Tournament | Queen's Gambit Declined: Ragozin Defense | |
| Jul 27, 2022 | Halkias | 1–0 | Ladopoulos | 31st Internation Chess Tournament | English Opening: Anglo-Indian Defense, Queen's Indian Formation | |
| Jul 27, 2022 | Charkhalashvili | 0–1 | Halkias | 31st Internation Chess Tournament | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Jul 26, 2022 | Halkias | 1–0 | Sirigos | 31st Internation Chess Tournament | Indian Defense: Przepiorka Variation | |
| Apr 5, 2022 | Krastev | ½–½ | Halkias | European Championship | Vienna Game: Vienna Gambit, Paulsen Attack | |
| Apr 3, 2022 | Golubka | 0–1 | Halkias | EICC 22 | Sicilian Defense: Najdorf Variation | |
| Apr 2, 2022 | Halkias | 1–0 | Giannoulakis | EICC 22 | King's Indian Defense: Fianchetto Variation, Classical Variation | |