| Apr 6, 2026 | Bourg | 1–0 | Stefanou | Grenke Chess Festival 2026 Open | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 5, 2026 | Lesny | 1–0 | Stefanou | Grenke Chess Festival 2026 Open | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 4, 2026 | Stefanou | ½–½ | Paragua | Grenke Chess Festival 2026 Open | Hungarian Opening: Indian Defense | |
| Apr 4, 2026 | Fanninger | ½–½ | Stefanou | Grenke Chess Festival 2026 Open | Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line | |
| Apr 3, 2026 | Schulte-Geers | ½–½ | Stefanou | Grenke Chess Festival 2026 Open | Queen's Gambit Declined: Vienna Variation, Quiet Variation | |
| Apr 2, 2026 | Stefanou | 1–0 | Stoyko | Grenke Chess Festival 2026 Open | English Opening: Agincourt Defense | |
| Mar 23, 2026 | Ioannidis | 0–1 | Stefanou | 3rd International Open Chess Tournament of Katerini Group A | English Opening: Four Knights System, Nimzowitsch Variation | |
| Mar 23, 2026 | Stefanou | ½–½ | Koutlas | 3rd International Open Chess Tournament of Katerini Group A | Pirc Defense: Austrian Attack, Dragon Formation | |
| Mar 22, 2026 | Oikonomopoulos | 0–1 | Stefanou | 3rd International Open Chess Tournament of Katerini Group A | Pirc Defense | |
| Mar 22, 2026 | Stefanou | 1–0 | Zygouris | 3rd International Open Chess Tournament of Katerini Group A | Sicilian Defense: French Variation | |
| Mar 21, 2026 | Stefanou | ½–½ | Karakatsanis | 3rd International Open Chess Tournament of Katerini Group A | King's Indian Attack: Symmetrical Defense | |
| Mar 20, 2026 | Markovski | 0–1 | Stefanou | 3rd International Open Chess Tournament of Katerini Group A | Modern Defense: Standard Line | |
| Feb 23, 2026 | Kouskoutis | 0–1 | Stefanou | Round 7: Kouskoutis, Georgios-Alexandros - Stefanou, Dimitrios | Semi-Slav Defense: Chigorin Defense | |
| Feb 22, 2026 | Stefanou | 1–0 | Stoimenidis | Round 6: Stefanou, Dimitrios - Stoimenidis, Dimitrios | Zukertort Opening: Nimzo-Larsen Variation | |
| Feb 22, 2026 | Kollias | 0–1 | Stefanou | Round 5: Kollias, Ioannis K. - Stefanou, Dimitrios | Pirc Defense | |
| Feb 21, 2026 | Merkouropoulos | 0–1 | Stefanou | Round 3: Merkouropoulos, Dionysios - Stefanou, Dimitrios | English Defense | |
| Feb 20, 2026 | Stefanou | 1–0 | Tzortzatos | Round 2: Stefanou, Dimitrios - Tzortzatos, Dimosthenis Panagiot | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Feb 19, 2026 | Tsolov | 0–1 | Stefanou | Round 1: Tsolov, Aleksandar - Stefanou, Dimitrios | Modern Defense: Two Knights Variation | |
| Feb 18, 2026 | Stefanou | 0–1 | Ioannidis | Round 4: Stefanou, Dimitrios - Ioannidis, Evgenios | Semi-Slav Defense | |
| Jan 4, 2026 | Stefanou | 1–0 | Goderdzishvili | Open A | Caro-Kann Defense: Advance Variation, Tal Variation | |
| Jan 3, 2026 | Dziewonski | ½–½ | Stefanou | Open A | Modern Defense: Geller's System | |
| Jan 2, 2026 | Stefanou | 0–1 | Firman | Open A | Réti Opening: Advance Variation, Michel Gambit | |
| Jan 2, 2026 | Stefanou | 1–0 | Giang | Open A | French Defense: Rubinstein Variation, Fort Knox Variation | |
| Dec 31, 2025 | Kucza | 1–0 | Stefanou | Open A | Pirc Defense | |
| Dec 30, 2025 | Stefanou | 1–0 | Divry | Open A | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Dec 29, 2025 | Jendrowiak | ½–½ | Stefanou | Open A | Italian Game: Two Knights Defense, Polerio Defense, Bishop Check Line | |
| Dec 28, 2025 | Stefanou | 1–0 | Sudarshan Bhat | Open A | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Dec 27, 2025 | Patil Priyanshu | 0–1 | Stefanou | Open A | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 25, 2025 | Stefanou | 0–1 | Nihal Sarin | Round 7: Stefanou, Dimitrios - Nihal Sarin | Sicilian Defense: French Variation, Westerinen Attack | |
| Oct 24, 2025 | Domingo Nunez | 0–1 | Stefanou | Round 6: Domingo Nunez, Ruben - Stefanou, Dimitrios | Pirc Defense: Classical Variation, Schlechter Variation | |
| Oct 23, 2025 | Stefanou | 1–0 | Aliferenko | Round 5: Stefanou, Dimitrios - Aliferenko, Aleksei | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Oct 22, 2025 | Dudognon | 1–0 | Stefanou | Round 4: Dudognon, Thibault - Stefanou, Dimitrios | Pirc Defense | |
| Oct 21, 2025 | Stefanou | ½–½ | Postny | Round 3: Stefanou, Dimitrios - Postny, Evgeny | English Opening: Anglo-Indian Defense, Zvjaginsev-Krasenkow Attack | |
| Jul 31, 2025 | Heimann | 0–1 | Stefanou | Round 5: Heimann, Alexander - Stefanou, Dimitrios | Rat Defense: English Rat | |
| Jul 30, 2025 | Stefanou | ½–½ | Zhang | Round 4: Stefanou, Dimitrios - Zhang, Lanlin | King's Indian Attack: Sicilian Variation | |
| Jul 26, 2025 | Stefanou | 1–0 | Baghdasaryan | Round 9: Stefanou, Dimitrios - Baghdasaryan, Vahe | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Jul 25, 2025 | Georgiou | ½–½ | Stefanou | Round 8: Georgiou, Kostantinos - Stefanou, Dimitrios | Dutch Defense: Queen's Knight Variation | |
| Jul 24, 2025 | Stefanou | 0–1 | Pham | Round 7: Stefanou, Dimitrios - Pham, Khoi | Sicilian Defense: Najdorf Variation, English Attack | |
| Jul 23, 2025 | Duson | 0–1 | Stefanou | Round 6: Duson, Robin - Stefanou, Dimitrios | Pirc Defense: 150 Attack | |
| Jul 22, 2025 | Stefanou | 1–0 | Alexieva | Round 5: Stefanou, Dimitrios - Alexieva, Silvia | Philidor Defense: Lion Variation | |
| Jul 21, 2025 | Smith | 0–1 | Stefanou | Round 4: Smith, Matthieu - Stefanou, Dimitrios | Zukertort Opening: St. George Defense | |
| Jul 19, 2025 | Boutikos | 1–0 | Stefanou | Round 1: Boutikos, Eleftherios - Stefanou, Dimitrios | Sicilian Defense: Najdorf Variation, Lipnitsky Attack | |
| Jul 3, 2025 | Stefanou | ½–½ | Halkias | Round 2: Stefanou, Dimitrios - Halkias, Stelios | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Mar 26, 2025 | Girel | 1–0 | Stefanou | Round 11: Girel, Joseph - Stefanou, Dimitrios | Indian Defense: Dzindzi-Indian Defense | |
| Mar 24, 2025 | Sanal | 1–0 | Stefanou | Round 9: Sanal, Vahap - Stefanou, Dimitrios | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Mar 23, 2025 | Stefanou | ½–½ | Heberla | Round 8: Stefanou, Dimitrios - Heberla, Bartlomiej | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Mar 18, 2025 | Stefanou | 0–1 | Velten | Round 4: Stefanou, Dimitrios - Velten, Paul | French Defense: Winawer Variation, Advance Variation | |
| Mar 16, 2025 | Stefanou | 0–1 | Pantsulaia | Round 2: Stefanou, Dimitrios - Pantsulaia, Levan | Queen's Gambit Accepted: Winawer Defense | |
| Oct 25, 2024 | Olsson | 0–1 | Stefanou | 39th European Chess Club Cup | Benoni Defense: Fianchetto Variation | |
| Oct 23, 2024 | Stefanou | 1–0 | Hove | 39th European Chess Club Cup | Slav Defense: Czech Variation, Bled Attack | |
| Oct 21, 2024 | Ivanovic | 0–1 | Stefanou | 39th European Chess Club Cup | Pirc Defense | |
| Oct 20, 2024 | Stefanou | 1–0 | Ho | 39th European Chess Club Cup | French Defense: Rubinstein Variation | |
| Jul 10, 2024 | Stefanou | ½–½ | Kesidis | Greek League 2024 | King's Indian Defense: Semi-Averbakh System | |
| Jul 6, 2024 | Stefanou | ½–½ | Kouvidis | Greek League 2024 | Sicilian Defense: French Variation, Westerinen Attack | |
| Jul 5, 2024 | Rigopoulos-Tsigkos | ½–½ | Stefanou | Greek League 2024 | Philidor Defense: Lion Variation | |
| Jul 4, 2024 | Stefanou | 1–0 | Stoimenidis | Greek League 2024 | Hungarian Opening | |
| Oct 24, 2024 | Stefanou | 0–1 | Balog | Round 5: Stefanou, Dimitrios - Balog, Imre | English Opening: Agincourt Defense | |
| Oct 22, 2024 | Stefanou | ½–½ | Samunenkov | Round 3: Stefanou, Dimitrios - Samunenkov, Ihor | English Opening: Symmetrical Variation | |
| Aug 5, 2024 | Stefanou | 1–0 | Ankit Ray | Round 9: Stefanou, Dimitrios - Ankit Ray | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Aug 4, 2024 | Kilic | 1–0 | Stefanou | Round 8: Kilic, Eray - Stefanou, Dimitrios | English Opening: Anglo-Indian Defense, King's Knight Variation | |
| Aug 3, 2024 | Stefanou | 1–0 | Prraneeth Vuppala | Round 7: Stefanou, Dimitrios - Prraneeth Vuppala | English Opening: King's English Variation | |
| Aug 2, 2024 | Xiao | ½–½ | Stefanou | Round 6: Xiao, Tong(QD) - Stefanou, Dimitrios | Ruy Lopez: Closed, Flohr System | |
| Aug 1, 2024 | Stefanou | ½–½ | Raja Rithvik R | Round 5: Stefanou, Dimitrios - Raja Rithvik R | Semi-Slav Defense: Marshall Gambit, Main Line | |
| Jul 31, 2024 | Livaic | ½–½ | Stefanou | Round 4: Livaic, Leon - Stefanou, Dimitrios | Indian Defense: Dzindzi-Indian Defense | |
| Jul 30, 2024 | Stefanou | 1–0 | Stoinev | Round 2: Stefanou, Dimitrios - Stoinev, Metodi | English Opening: Agincourt Defense | |
| Jul 30, 2024 | Stefanou | ½–½ | Szpar | Round 3: Stefanou, Dimitrios - Szpar, Milosz | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Aug 17, 2022 | Dimanoudis | 0–1 | Stefanou | National Greek Team Championship | Scandinavian Defense: Modern Variation | |
| Aug 16, 2022 | Kotsinis | 0–1 | Stefanou | National Greek Team Championship | Benoni Defense: Fianchetto Variation | |
| Aug 15, 2022 | Stefanou | 0–1 | Papaioannou | National Greek Team Championship | King's Indian Defense: Semi-Averbakh System | |
| Aug 14, 2022 | Makridis | ½–½ | Stefanou | National Greek Team Championship | Scotch Game: Mieses Variation | |
| Aug 13, 2022 | Stefanou | 1–0 | Chasapis | National Greek Team Championship | King's Indian Defense: Semi-Averbakh System | |
| Aug 13, 2022 | Stefanou | ½–½ | Gavriil | National Greek Team Championship | King's Indian Defense: Semi-Averbakh System | |
| Aug 12, 2022 | Stoimenidis | ½–½ | Stefanou | National Greek Team Championship | French Defense: Tarrasch Variation, Open System | |
| Aug 2, 2022 | Koutlas | ½–½ | Stefanou | 31st Internation Chess Tournament | Ruy Lopez: Closed, Breyer Defense, Quiet Variation | |
| Aug 1, 2022 | Charkhalashvili | ½–½ | Stefanou | 31st Internation Chess Tournament | Indian Defense: Anti-Nimzo-Indian | |
| Jul 31, 2022 | Stefanou | 0–1 | Can | 31st Internation Chess Tournament | Slav Defense: Czech Variation, Classical System, Main Line | |
| Jul 30, 2022 | Maltsevskaya | ½–½ | Stefanou | 31st Internation Chess Tournament | French Defense: Winawer Variation | |
| Jul 29, 2022 | Stefanou | 1–0 | Spyratos | 31st Internation Chess Tournament | English Opening: Romanishin Gambit | |
| Jul 26, 2022 | Stefanou | 0–1 | Yilmazyerli | 31st Internation Chess Tournament | English Opening: Symmetrical Variation, Three Knights, Fianchetto Variation | |
| Aug 16, 2021 | Stefanou | 0–1 | Arfan | World Youth Cup 2021 O16-G12 - Open 16 | Queen's Gambit Accepted: Normal Variation | |
| Aug 16, 2021 | Stefanou | 0–1 | Chinguun | World Youth Cup 2021 O16-G12 - Open 16 | King's Indian Defense: Accelerated Averbakh Variation | |
| Aug 16, 2021 | Stefanou | 1–0 | Tan | World Youth Cup 2021 O16-G12 - Open 16 | English Opening: Mikenas-Carls Variation | |
| Aug 16, 2021 | Stefanou | 1–0 | Schlegel | World Youth Cup 2021 O16-G12 - Open 16 | King's Indian Defense: Kramer Variation | |
| Aug 16, 2021 | Sarmiento | 0–1 | Stefanou | World Youth Cup 2021 O16-G12 - Open 16 | Catalan Opening | |
| Aug 16, 2021 | Arcot | 0–1 | Stefanou | World Youth Cup 2021 O16-G12 - Open 16 | Bishop's Opening: Urusov Gambit | |
| Aug 16, 2021 | Tsanatsqenishvili | ½–½ | Stefanou | World Youth Cup 2021 O16-G12 - Open 16 | Ruy Lopez: Closed, Chigorin Defense, Panov System | |
| Aug 16, 2021 | Dey | 0–1 | Stefanou | World Youth Cup 2021 O16-G12 - Open 16 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Aug 16, 2021 | Nguyen | 0–1 | Stefanou | World Youth Cup 2021 O16-G12 - Open 16 | Indian Defense: Anti-Nimzo-Indian | |
| Aug 8, 2021 | Vlachos | 0–1 | Stefanou | 30th OPEN Chess International Tournament | ? | |
| Aug 7, 2021 | Stamatiou | * | Stefanou | 30th OPEN Chess International Tournament | ? | |
| Aug 6, 2021 | Stefanou | ½–½ | Kalogridis | 30th OPEN Chess International Tournament | English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | |
| Aug 5, 2021 | Klimentov | ½–½ | Stefanou | 30th OPEN Chess International Tournament | Ruy Lopez: Closed, Delayed Exchange | |
| Aug 4, 2021 | Stefanou | ½–½ | Avramidou | 30th OPEN Chess International Tournament | Bogo-Indian Defense: Grünfeld Variation | |
| Aug 3, 2021 | Makridis | ½–½ | Stefanou | 30th OPEN Chess International Tournament | Scotch Game: Mieses Variation | |
| Aug 2, 2021 | Stefanou | * | Isaakidis | 30th OPEN Chess International Tournament | ? | |
| Aug 2, 2021 | Sirigos | * | Stefanou | 30th OPEN Chess International Tournament | ? | |
| Aug 1, 2021 | Stefanou | ½–½ | Kanakaris | 30th OPEN Chess International Tournament | Bogo-Indian Defense: Grünfeld Variation | |
| — | Stefanou | ½–½ | Avsar | Round 6: Stefanou, Dimitrios - Avsar, Gediz | Queen's Indian Defense: Fianchetto Variation | |
| — | Stefanou | ½–½ | Chen | Round 8: Stefanou, Dimitrios - Chen, Zhi | Four Knights Game: Scotch Variation Accepted | |
| — | Arnold | ½–½ | Stefanou | Round 7: Arnold, Rhys - Stefanou, Dimitrios | Ruy Lopez: Cozio Defense | |