| Jun 22, 2026 | Vassis | 1–0 | Chompas | Round 9: Vassis, Michail - Chompas, Vasileios | English Opening: Agincourt Defense | |
| Jun 21, 2026 | Kofidis | 0–1 | Vassis | Round 8: Kofidis, Andreas - Vassis, Michail | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Jun 20, 2026 | Vassis | 1–0 | Tsamtsouris | Round 7: Vassis, Michail - Tsamtsouris, Efthymios | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jun 19, 2026 | Vassis | 1–0 | Nikolopoulos | Round 6: Vassis, Michail - Nikolopoulos, Nikolaos S | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Jun 17, 2026 | Vassis | ½–½ | Georgiadis | Round 4: Vassis, Michail - Georgiadis, Anastasios | Ruy Lopez: Exchange Variation, Alapin Gambit | |
| Jun 16, 2026 | Nikolaidis | 0–1 | Vassis | Round 3: Nikolaidis, Konstantinos - Vassis, Michail | King's Indian Defense: Averbakh Variation, Main Line | |
| Jun 15, 2026 | Vassis | 1–0 | Armaos | Round 2: Vassis, Michail - Armaos, Michail | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jun 14, 2026 | Mastrovasilis | 1–0 | Vassis | Round 5: Mastrovasilis, Athanasios - Vassis, Michail | Grünfeld Defense: Three Knights Variation, Petrosian System | |
| Jun 14, 2026 | Ampeliotis | 0–1 | Vassis | Round 1: Ampeliotis, Georgios - Vassis, Michail | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| May 17, 2026 | Vassis | 0–1 | Krallis | Round 4: Vassis, Michail - Krallis, Christos | English Opening: Symmetrical Variation, Botvinnik System Reversed, with Nf3 | |
| 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 | Kouskoutis | ½–½ | Vassis | 3rd International Open Chess Tournament of Katerini Group A | Indian Defense: Accelerated London System | |
| Mar 22, 2026 | Vassis | 1–0 | Stratigos | 3rd International Open Chess Tournament of Katerini Group A | English Opening: Anglo-Indian Defense, Queen's Knight Variation | |
| Mar 21, 2026 | Tzortzatos | 0–1 | Vassis | 3rd International Open Chess Tournament of Katerini Group A | French Defense: Tarrasch Variation, Guimard Defense | |
| Mar 21, 2026 | Vassis | 1–0 | Oner | 3rd International Open Chess Tournament of Katerini Group A | Catalan Opening: Open Defense, Classical Line | |
| Mar 20, 2026 | Alexandri | 0–1 | Vassis | 3rd International Open Chess Tournament of Katerini Group A | King's Indian Defense: Semi-Averbakh System | |
| Mar 17, 2026 | Vassis | 0–1 | Patrelakis | 3rd International Open Chess Tournament of Katerini Group A | French Defense: Exchange Variation | |
| Jan 6, 2026 | Vassis | 1–0 | Asvestas | Round 6: Vassis, Michail - Asvestas, Emmanouil | English Opening: Agincourt Defense, Neo-Catalan Declined | |
| Jan 2, 2026 | Antoniadis | 0–1 | Vassis | Round 7: Antoniadis, Artiom - Vassis, Michail | Rapport-Jobava System | |
| Jan 2, 2026 | Panopoulos | 0–1 | Vassis | Round 5: Panopoulos, Ioannis - Vassis, Michail | Bogo-Indian Defense: Grünfeld Variation | |
| Jan 2, 2026 | Vassis | 1–0 | Nemtsas | Round 4: Vassis, Michail - Nemtsas, Hristoforos | Modern Defense: Pseudo-Austrian Attack | |
| Jan 2, 2026 | Paouris | 0–1 | Vassis | Round 3: Paouris, Nikolaos - Vassis, Michail | Rapport-Jobava System | |
| Jan 2, 2026 | Vassis | 1–0 | Ampeliotis | Round 2: Vassis, Michail - Ampeliotis, Georgios | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Jan 2, 2026 | Vasilopoulos | 0–1 | Vassis | Round 1: Vasilopoulos, Georgios Th - Vassis, Michail | King's Indian Defense: Kazakh Variation | |
| Dec 26, 2025 | Vassis | 1–0 | Kassios | Round 5: Vassis, Michail - Kassios, Dimitrios | Nimzo-Larsen Attack: Symmetrical Variation | |
| Dec 5, 2025 | Vassis | 0–1 | Rahmanidis | Round 3: Vassis, Michail - Rahmanidis, Petros | Nimzo-Larsen Attack: Classical Variation | |
| Dec 5, 2025 | Ergazakis | 0–1 | Vassis | Round 6: Ergazakis, Ioannis - Vassis, Michail | French Defense: Advance Variation, Euwe Variation | |
| Dec 5, 2025 | Papadopoulos | 0–1 | Vassis | Round 4: Papadopoulos, Petros - Vassis, Michail | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Nov 5, 2025 | Sowinski | 1–0 | Vassis | Round 7: Sowinski, Pawel - Vassis, Michail | Grünfeld Defense: Exchange Variation | |
| Oct 27, 2025 | Balint | 1–0 | Vassis | Round 3: Balint, Peter - Vassis, Michail | Ruy Lopez: Open | |
| Sep 9, 2025 | Vassis | 1–0 | Anagnostopoulos | Round 9: Vassis, Michail - Anagnostopoulos, Panagiotis | King's Indian Defense: Makogonov Variation | |
| Sep 8, 2025 | Ergazakis | 1–0 | Vassis | Round 7: Ergazakis, Ioannis - Vassis, Michail | French Defense: King's Indian Attack | |
| Sep 8, 2025 | Merkos | ½–½ | Vassis | Round 8: Merkos, Thomas - Vassis, Michail | French Defense: Exchange Variation | |
| Sep 6, 2025 | Stratigos | 0–1 | Vassis | Round 6: Stratigos, Spiros - Vassis, Michail | French Defense: King's Indian Attack | |
| Sep 5, 2025 | Vassis | 1–0 | Armaos | Round 5: Vassis, Michail - Armaos, Michail | Queen's Pawn Game | |
| Sep 4, 2025 | Sideris | 0–1 | Vassis | Round 4: Sideris, Theodoros - Vassis, Michail | French Defense: Advance Variation, Euwe Variation | |
| Sep 2, 2025 | Goutoufas | 1–0 | Vassis | Round 2: Goutoufas, Christos - Vassis, Michail | Ruy Lopez: Closed, Chigorin Defense | |
| Sep 1, 2025 | Vassis | 1–0 | Tsitimakis | Round 1: Vassis, Michail - Tsitimakis, Periklis | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Aug 28, 2025 | Vassis | 0–1 | Krallis | Round 7: Vassis, Michail - Krallis, Christos | Bogo-Indian Defense: Retreat Variation | |
| Jul 26, 2025 | Barak | 0–1 | Vassis | Round 9: Barak, Gil - Vassis, Michail | French Defense: St. George Defense | |
| Jul 25, 2025 | Vassis | 0–1 | Karamichos | Round 8: Vassis, Michail - Karamichos, Michail | Zukertort Opening: Nimzo-Larsen Variation | |
| Jul 24, 2025 | Pulkkinen | 0–1 | Vassis | Round 7: Pulkkinen, Kari - Vassis, Michail | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jul 23, 2025 | Vassis | ½–½ | Tzagarakis | Round 6: Vassis, Michail - Tzagarakis, Panagiotis | Bogo-Indian Defense: Wade-Smyslov Variation | |
| Jul 22, 2025 | Cao | 1–0 | Vassis | Round 5: Cao, Qingfeng - Vassis, Michail | King's Indian Defense: Semi-Averbakh System | |
| Jul 21, 2025 | Vassis | ½–½ | Skytte | Round 4: Vassis, Michail - Skytte, Rasmus | King's Indian Attack: Symmetrical Defense | |
| Jul 19, 2025 | Kvaloy | 0–1 | Vassis | Round 3: Kvaloy, Aksel Bu - Vassis, Michail | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jul 10, 2025 | Mylonakis | 0–1 | Vassis | Round 6: Mylonakis, Ioannis - Vassis, Michail | King's Indian Defense: Makogonov Variation | |
| Jul 9, 2025 | Vassis | 1–0 | Giannopoulos | Round 5: Vassis, Michail - Giannopoulos, Vasileios | English Opening: King's English Variation, Reversed Closed Sicilian | |
| Jul 7, 2025 | Benakis | 0–1 | Vassis | Round 2: Benakis, Ioannis - Vassis, Michail | Indian Defense: King's Indian Variation, Fianchetto Variation | |
| Jul 6, 2025 | Balafoutas | 0–1 | Vassis | Round 9: Balafoutas, Alexandros - Vassis, Michail | Rapport-Jobava System | |
| Jul 6, 2025 | Vassis | 1–0 | Mantazis | Round 8: Vassis, Michail - Mantazis, Georgios Rafail | Nimzo-Larsen Attack: Classical Variation | |
| Jul 6, 2025 | Mavridis | 0–1 | Vassis | Round 7: Mavridis, Emmanouil - Vassis, Michail | Dutch Defense: Queen's Knight Variation | |
| Jul 6, 2025 | Karakasidis | 1–0 | Vassis | Round 4: Karakasidis, Michail - Vassis, Michail | Ruy Lopez: Open, Classical Defense | |
| Jul 6, 2025 | Vassis | 1–0 | Seretis | Round 3: Vassis, Michail - Seretis, Nikolaos G | Queen's Pawn Game: Symmetrical Variation | |
| Jul 6, 2025 | Vassis | 1–0 | Spiliotopoulos | Round 1: Vassis, Michail - Spiliotopoulos, Spyridon | English Opening: Mikenas-Carls Variation | |
| Jun 22, 2025 | Vassis | 1–0 | Mylonakis | Round 9: Vassis, Michail - Mylonakis, Ioannis | Queen's Indian Defense: Petrosian Variation | |
| Jun 21, 2025 | Demestichas | 0–1 | Vassis | Round 8: Demestichas, Petros - Vassis, Michail | French Defense: Exchange Variation | |
| Jun 20, 2025 | Vassis | 0–1 | Alexiadis | Round 7: Vassis, Michail - Alexiadis, Hristos | English Opening: Anglo-Indian Defense | |
| Jun 19, 2025 | Ergazakis | ½–½ | Vassis | Round 6: Ergazakis, Ioannis - Vassis, Michail | Ruy Lopez: Morphy Defense, Anderssen Variation | |
| Jun 18, 2025 | Vassis | ½–½ | Mitsis | Round 5: Vassis, Michail - Mitsis, Georgios | Torre Attack: Classical Defense | |
| Jun 17, 2025 | Vassis | 1–0 | Kassios | Round 4: Vassis, Michail - Kassios, Dimitrios | Queen's Pawn Game: Symmetrical Variation | |
| Jun 15, 2025 | Vassis | 1–0 | Mytilinis | Round 2: Vassis, Michail - Mytilinis, Sokratis | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jun 14, 2025 | Chompas | 0–1 | Vassis | Round 1: Chompas, Vasileios - Vassis, Michail | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Jun 14, 2025 | Kapnisis | ½–½ | Vassis | Round 3: Kapnisis, Spyridon - Vassis, Michail | Queen's Gambit Declined: Three Knights Variation | |
| Apr 28, 2025 | Vassis | ½–½ | Skodras | Round 9: Vassis, Michail - Skodras, Marios Konstantinos | Torre Attack: Classical Defense | |
| Apr 27, 2025 | Margaritis | 0–1 | Vassis | Round 8: Margaritis, Ioannis M - Vassis, Michail | Dutch Defense: Raphael Variation | |
| Apr 26, 2025 | Vassis | 1–0 | Vassis | Round 7: Vassis, Michail - Vassis, Anastasios | Indian Defense: Przepiorka Variation | |
| Apr 25, 2025 | Vassis | 1–0 | Tzortzatos | Round 6: Vassis, Michail - Tzortzatos, Dimosthenis Panagiot | Nimzo-Larsen Attack: Modern Variation | |
| Apr 25, 2025 | Lafkidis | 0–1 | Vassis | Round 5: Lafkidis, Apostolos - Vassis, Michail | Scotch Game: Classical Variation | |
| Apr 24, 2025 | Vassis | 1–0 | Mavridis | Round 4: Vassis, Michail - Mavridis, Emmanouil | Catalan Opening: Closed, Main Line | |
| Apr 23, 2025 | Tegos | 0–1 | Vassis | Round 2: Tegos, Lampros - Vassis, Michail | French Defense: Advance Variation, Milner-Barry Gambit, Main Line | |
| Apr 23, 2025 | Armaos | 0–1 | Vassis | Round 3: Armaos, Michail - Vassis, Michail | King's Indian Defense: Smyslov Variation | |
| Apr 22, 2025 | Vassis | * | Soukarie | Round 1: Vassis, Michail - Soukarie, Zorz | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Apr 13, 2025 | Vassis | 1–0 | Alexakis | 13th Open Grand Prix, by SOXalandriou (Blitz) | English Opening: Symmetrical Variation | |
| Apr 13, 2025 | Vassis | 0–1 | Oikonomopoulos | 13th Open Grand Prix, by SOXalandriou (Blitz) | English Opening: Anglo-Indian Defense, King's Indian Formation | |
| Apr 13, 2025 | Kazantzoglou | 0–1 | Vassis | 13th Open Grand Prix, by SOXalandriou (Blitz) | French Defense: Exchange Variation | |
| Jan 6, 2025 | Genovezos | 0–1 | Vassis | Round 7: Genovezos, Rafail - Vassis, Michail | French Defense: Exchange Variation | |
| Jan 5, 2025 | Vassis | ½–½ | Mastrovasilis | Round 6: Vassis, Michail - Mastrovasilis, Athanasios | Torre Attack: Classical Defense | |
| Jan 4, 2025 | Vassis | 1–0 | Mavrogeorgos | Round 5: Vassis, Michail - Mavrogeorgos, Ilias | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Jan 3, 2025 | Zavrakidis | 0–1 | Vassis | Round 4: Zavrakidis, Nikolaos - Vassis, Michail | Alekhine Defense: Exchange Variation, Voronezh Variation | |
| Dec 15, 2024 | Vassis | 0–1 | Patrelakis | 10th Open Rapid Tournament, by SOXalandriou | French Defense: Classical Variation, Steinitz Variation | |
| Nov 17, 2024 | Vassis | 1–0 | Tzortzatos | 10th Open Grand Prix, by SOXalandriou (Blitz) | English Opening: Mikenas-Carls Variation | |
| Nov 17, 2024 | Vassis | 1–0 | Stratigos | 10th Open Grand Prix, by SOXalandriou (Blitz) | Torre Attack: Fianchetto Defense | |
| Nov 17, 2024 | Papadimitriou | ½–½ | Vassis | 10th Open Grand Prix, by SOXalandriou (Blitz) | Dutch Defense: Rubinstein Variation | |
| Aug 30, 2024 | Malinowsky | 1–0 | Vassis | EYCC 2024 - O14 | Zukertort Opening: Quiet System | |
| Aug 29, 2024 | Vassis | 1–0 | Makrylakis | EYCC 2024 - O14 | English Opening: Carls-Bremen System | |
| Aug 28, 2024 | Mahmudzade | 1–0 | Vassis | EYCC 2024 - O14 | King's Indian Defense: Smyslov Variation | |
| Aug 26, 2024 | Vassis | ½–½ | Kurt | EYCC 2024 - O14 | Torre Attack: Fianchetto Defense | |
| Aug 24, 2024 | Vassis | ½–½ | Krivka | EYCC 2024 - O14 | Nimzo-Larsen Attack: Classical Variation | |
| Aug 23, 2024 | Gorkov | 1–0 | Vassis | EYCC 2024 - O14 | Rapport-Jobava System | |
| Aug 22, 2024 | Vassis | 1–0 | Pilchuk | EYCC 2024 - O14 | Indian Defense: Przepiorka Variation | |
| Jun 25, 2024 | Ntounias | 0–1 | Vassis | Round 5: Ntounias, Ioannis - Vassis, Michail | Caro-Kann Defense: Main Line | |
| Jun 21, 2024 | Pitsakis | 0–1 | Vassis | Round 9: Pitsakis, Ilias - Vassis, Michail | Dutch Defense: Rubinstein Variation | |
| Jun 21, 2024 | Vassis | 1–0 | Merkouropoulos | Round 8: Vassis, Michail - Merkouropoulos, Dionysios | English Opening: Agincourt Defense | |
| Jun 21, 2024 | Makrylakis | 0–1 | Vassis | Round 7: Makrylakis, Iason - Vassis, Michail | French Defense: Tarrasch Variation, Guimard Defense, Main Line | |
| Jun 21, 2024 | Vassis | 1–0 | Papakyriakou | Round 6: Vassis, Michail - Papakyriakou, Charalampos | Indian Defense: Knights Variation | |
| Jun 21, 2024 | Vassis | ½–½ | Mantazis | Round 4: Vassis, Michail - Mantazis, Georgios Rafail | Queen's Pawn Game | |
| Jun 21, 2024 | Zavrakidis | 0–1 | Vassis | Round 3: Zavrakidis, Nikolaos - Vassis, Michail | French Defense: Exchange Variation | |
| Jun 21, 2024 | Vassis | 1–0 | Lampropoulos | Round 2: Vassis, Michail - Lampropoulos, Pavlos | English Opening: Anglo-Indian Defense, Hedgehog System | |
| Jun 21, 2024 | Linaras | 0–1 | Vassis | Round 1: Linaras, Dimitrios - Vassis, Michail | Grünfeld Defense: Three Knights Variation, Burille Variation, Reversed Tarrasch | |