| Apr 19, 2026 | Can | 0–1 | Kalogeris | EICC 2026 | French Defense: Winawer Variation, Advance Variation | |
| Apr 18, 2026 | Kalogeris | 0–1 | Malek | EICC 2026 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Apr 16, 2026 | Kadric | ½–½ | Kalogeris | EICC 2026 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Apr 15, 2026 | Kalogeris | 1–0 | Piorun | EICC 2026 | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Apr 14, 2026 | Kovalenko | 1–0 | Kalogeris | EICC 2026 | Slav Defense: Chebanenko Variation | |
| Apr 13, 2026 | Kalogeris | ½–½ | Seemann | EICC 2026 | English Opening: Agincourt Defense | |
| Apr 12, 2026 | Laurent-Paoli | 0–1 | Kalogeris | EICC 2026 | Catalan Opening: Closed | |
| Apr 10, 2026 | Kalogeris | 1–0 | Kochavi | EICC 2026 | Nimzo-Indian Defense: Romanishin Variation | |
| Apr 9, 2026 | Tymrakiewicz | 0–1 | Kalogeris | EICC 2026 | Yusupov-Rubinstein System | |
| Apr 8, 2026 | Kalogeris | 0–1 | Gurel | EICC 2026 | English Opening: King's English Variation, Two Knights Variation, Smyslov System | |
| Apr 7, 2026 | Sprzeczka | 0–1 | Kalogeris | EIIC 2026 | Nimzo-Indian Defense: Sämisch Variation | |
| Nov 24, 2025 | Kalogeris | 1–0 | Drakaki | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense | |
| Nov 24, 2025 | Kalogeris | 1–0 | Iliadis | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | English Opening: Four Knights System, Nimzowitsch Variation | |
| Nov 24, 2025 | Kalogeris | 1–0 | Arzoumanidis | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | French Defense: Classical Variation | |
| Nov 24, 2025 | Stoimenidis | 1–0 | Kalogeris | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | Indian Defense | |
| Nov 24, 2025 | Kalogeris | 0–1 | Kourkoulos-Arditis | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | Queen's Gambit Declined: Janowski Variation | |
| Nov 24, 2025 | Papadimitriou | 0–1 | Kalogeris | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | Nimzo-Indian Defense: Normal Variation | |
| Nov 24, 2025 | Kalogridis | 1–0 | Kalogeris | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | Nimzo-Indian Defense: Normal Variation | |
| Nov 22, 2025 | Kalogeris | 1–0 | Papageorgiou | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | English Opening: Four Knights System, Nimzowitsch Variation | |
| Nov 22, 2025 | Margaritis | 0–1 | Kalogeris | 2nd Gavriil Mastrovasilis Memorial Rapid 2025 | Catalan Opening | |
| Jul 27, 2025 | Can | 0–1 | Kalogeris | Round 9: Can, Melih Kaan - Kalogeris, Ioannis | Slav Defense: Exchange Variation, Symmetrical Line | |
| Jul 26, 2025 | Kalogeris | 1–0 | Bayramov | Round 8: Kalogeris, Ioannis - Bayramov, Zaur | Pirc Defense: Austrian Attack, Unzicker Attack | |
| Jul 25, 2025 | Kalogeris | 1–0 | Erturan | Round 7: Kalogeris, Ioannis - Erturan, Yakup | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Jul 24, 2025 | Maruflu | ½–½ | Kalogeris | Round 5: Maruflu, Enes Yusuf - Kalogeris, Ioannis | Caro-Kann Defense: Forgacs Variation | |
| Jul 23, 2025 | Kalogeris | ½–½ | Spyropoulos | Round 4: Kalogeris, Ioannis - Spyropoulos, Nikolaos | Bogo-Indian Defense: Grünfeld Variation | |
| Jul 23, 2025 | Kuzubov | ½–½ | Kalogeris | Round 3: Kuzubov, Yuriy - Kalogeris, Ioannis | King's Indian Attack | |
| Jul 22, 2025 | Kalogeris | 0–1 | Toufighi | Round 2: Kalogeris, Ioannis - Toufighi, Homayoon | French Defense: Tarrasch Variation, Morozevich Variation | |
| Jul 21, 2025 | Sanz Wawer | ½–½ | Kalogeris | Round 1: Sanz Wawer, Daniel - Kalogeris, Ioannis | French Defense: Tarrasch Variation, Open System, Main Line | |
| Jul 19, 2025 | Atabayev | 0–1 | Kalogeris | Round 6: Atabayev, Yusup - Kalogeris, Ioannis | Ruy Lopez: Morphy Defense, Arkhangelsk Variation | |
| Jul 6, 2025 | Kalogeris | 1–0 | Deligiannis | Final: Kalogeris, Ioannis - Deligiannis, Christos Nikolaos | Sicilian Defense: Moscow Variation | |
| Jul 5, 2025 | Nikolaidis | ½–½ | Kalogeris | Semi-Finals: Nikolaidis, Ioannis - Kalogeris, Ioannis | Bogo-Indian Defense: Monticelli Trap | |
| Jun 8, 2025 | Kalogeris | 1–0 | Koutoukidis | 43rd Hybrid Greek Cup F8 | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Jun 1, 2025 | Kalogeris | 1–0 | Tzortzatos | Round 6: Kalogeris, Ioannis - Tzortzatos, Dimosthenis Panagiot | Indian Defense: Anti-Nimzo-Indian | |
| May 31, 2025 | Kalogeris | 0–1 | Kalogridakis | Round 5: Kalogeris, Ioannis - Kalogridakis, Georgios | Sicilian Defense: Najdorf Variation, Adams Attack | |
| Mar 26, 2025 | Kistrup | ½–½ | Kalogeris | Round 11: Kistrup, Nicolai - Kalogeris, Ioannis | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Mar 25, 2025 | Kalogeris | 0–1 | Iturrizaga Bonelli | Round 10: Kalogeris, Ioannis - Iturrizaga Bonelli, Eduardo | Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line | |
| Mar 24, 2025 | Engel | ½–½ | Kalogeris | Round 9: Engel, Luis - Kalogeris, Ioannis | Caro-Kann Defense: Tartakower Variation | |
| Mar 23, 2025 | Kalogeris | 1–0 | Oliinyk | Round 8: Kalogeris, Ioannis - Oliinyk, Serafym | Ruy Lopez: Berlin Defense | |
| Mar 22, 2025 | Aslanov | ½–½ | Kalogeris | Round 7: Aslanov, Umid - Kalogeris, Ioannis | Ruy Lopez: Morphy Defense, Steinitz Deferred | |
| Mar 20, 2025 | Kalogeris | ½–½ | Yeritsyan | Round 6: Kalogeris, Ioannis - Yeritsyan, Hayk | Sicilian Defense: Hyperaccelerated Dragon | |
| Mar 19, 2025 | Sarana | ½–½ | Kalogeris | Round 5: Sarana, Alexey - Kalogeris, Ioannis | Slav Defense: Czech Variation, Krause Attack | |
| Mar 18, 2025 | Kalogeris | ½–½ | Filip | Round 4: Kalogeris, Ioannis - Filip, Lucian-Ioan | Sicilian Defense: Kan Variation, Modern Variation | |
| Mar 17, 2025 | Uritsky | 0–1 | Kalogeris | Round 3: Uritsky, Yonathan - Kalogeris, Ioannis | Ruy Lopez: Morphy Defense | |
| Apr 6, 2024 | Sanal | * | Kalogeris | Menorca Open 2024 | ? | |
| Apr 6, 2024 | Kalogeris | ½–½ | Adhiban | Menorca Open 2024 | ? | |
| Apr 4, 2024 | Kalogeris | ½–½ | Stremavicius | Menorca Open 2024 | Sicilian Defense: Old Sicilian | |
| Apr 3, 2024 | Aryan Chopra | 1–0 | Kalogeris | Menorca Open 2024 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Mar 5, 2024 | Bharath Subramaniyam H | 1–0 | Kalogeris | Round 7: Bharath Subramaniyam H - Kalogeris, Ioannis | Four Knights Game: Scotch Variation Accepted | |
| Mar 4, 2024 | Bernadskiy | 0–1 | Kalogeris | Round 6: Bernadskiy, Vitaliy - Kalogeris, Ioannis | Ruy Lopez: Morphy Defense | |
| Mar 2, 2024 | Stoyanov | 1–0 | Kalogeris | Round 4: Stoyanov, Tsvetan - Kalogeris, Ioannis | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Nov 19, 2024 | Kalogeris | ½–½ | Petrov | Round 11: Kalogeris, Ioannis - Petrov, Nikita | Ruy Lopez: Closed, Delayed Exchange | |
| Nov 18, 2024 | Tomczak | 0–1 | Kalogeris | Round 10: Tomczak, Jacek - Kalogeris, Ioannis | Ruy Lopez: Morphy Defense | |
| Nov 17, 2024 | Kalogeris | 1–0 | Paichadze | Round 9: Kalogeris, Ioannis - Paichadze, Luka | Caro-Kann Defense: Advance Variation | |
| Nov 16, 2024 | Fressinet | ½–½ | Kalogeris | Round 8: Fressinet, Laurent - Kalogeris, Ioannis | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 15, 2024 | Kalogeris | 1–0 | Hamidov | Round 7: Kalogeris, Ioannis - Hamidov, Allahverdi | French Defense: Winawer Variation, Advance Variation | |
| Nov 13, 2024 | Suleymanli | 1–0 | Kalogeris | Round 6: Suleymanli, Aydin - Kalogeris, Ioannis | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack | |
| Nov 12, 2024 | Kalogeris | 1–0 | Rychagov | Round 5: Kalogeris, Ioannis - Rychagov, Nikita | Petrov's Defense: Classical Attack, Marshall Variation | |
| Nov 11, 2024 | Laurent-Paoli | 1–0 | Kalogeris | Round 4: Laurent-Paoli, Pierre - Kalogeris, Ioannis | Ruy Lopez: Morphy Defense | |
| Nov 10, 2024 | Kalogeris | 0–1 | Erdogmus | Round 3: Kalogeris, Ioannis - Erdogmus, Yagiz Kaan | Ruy Lopez: Morphy Defense, Cozio Defense | |
| Nov 9, 2024 | Kalogeris | 1–0 | Jobava | Round 2: Kalogeris, Ioannis - Jobava, Baadur | Petrov's Defense: Classical Attack | |
| Mar 12, 2023 | Kalogeris | 0–1 | Bosiocic | European Championship | Pirc Defense: Austrian Attack | |
| Mar 11, 2023 | Nesterov | ½–½ | Kalogeris | European Individual Chess Championship 2023 | Queen's Gambit Declined: Exchange Variation, Positional Variation | |
| Mar 10, 2023 | Kalogeris | ½–½ | Mastrovasilis | European Individual Chess Championship 2023 | Ruy Lopez: Berlin Defense, Rio Gambit Accepted | |
| Mar 9, 2023 | Yilmazyerli | 1–0 | Kalogeris | European Individual Chess Championship 2023 | Bishop's Opening: Vienna Hybrid | |
| Mar 8, 2023 | Kalogeris | 1–0 | Muradli | European Individual Chess Championship 2023 | Sicilian Defense: Najdorf Variation, English Attack | |
| Mar 6, 2023 | Kalogeris | 0–1 | Petrosyan | European Individual Chess Championship 2023 | Ruy Lopez: Closed, Delayed Exchange | |
| Mar 5, 2023 | Lupulescu | ½–½ | Kalogeris | European Individual Chess Championship 2023 | Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line | |
| Mar 4, 2023 | Kalogeris | ½–½ | Laurusas | European Championship | Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation | |
| Aug 19, 2022 | Rigopoulos-Tsigkos | 0–1 | Kalogeris | Greek Team Cup Final 8 | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Aug 18, 2022 | Kalogeris | 0–1 | Sandalakis | Greek Team Cup Final 8 | Sicilian Defense: Accelerated Dragon, Modern Bc4 Variation | |
| Aug 18, 2022 | Koronas | 0–1 | Kalogeris | Greek Team Cup Final 8 | King's Indian Attack | |
| Aug 17, 2022 | Halkias | ½–½ | Kalogeris | National Greek Team Championship | Slav Defense: Geller Gambit | |
| Aug 16, 2022 | Kalogeris | 1–0 | Galopoulos | National Greek Team Championship | Queen's Gambit Declined: Ragozin Defense, Alekhine Variation | |
| Aug 15, 2022 | Tzoumbas | 0–1 | Kalogeris | National Greek Team Championship | Nimzo-Larsen Attack: Indian Variation | |
| Aug 14, 2022 | Kalogeris | 1–0 | Schuetze | National Greek Team Championship | Ruy Lopez: Morphy Defense, Modern Steinitz Defense, Siesta Variation | |
| Aug 13, 2022 | Kalogeris | 0–1 | Papaioannou | National Greek Team Championship | Sicilian Defense: Najdorf Variation, Freak Attack | |
| Aug 13, 2022 | Tsakiris | 0–1 | Kalogeris | National Greek Team Championship | Nimzo-Indian Defense: Three Knights Variation | |
| Jul 24, 2022 | Kalogeris | 1–0 | Baillon | 15th Paleochora Open | Sicilian Defense: Moscow Variation, Main Line | |
| Jul 23, 2022 | Banikas | 1–0 | Kalogeris | 15th Paleochora Open | Slav Defense: Modern Line | |
| Jul 22, 2022 | Kalogeris | 1–0 | Tsarsitalidis | 15th Paleochora Open | Queen's Gambit Declined: Queen's Knight Variation | |
| Jul 21, 2022 | Milonakis | ½–½ | Kalogeris | 15th Paleochora Open | Réti Opening: Advance Variation | |
| Jul 20, 2022 | Kalogeris | * | Aubry | 15th Paleochora Open | ? | |
| Jul 19, 2022 | Yilmaz | 1–0 | Kalogeris | 15th Paleochora Open | Slav Defense: Czech Variation, Krause Attack | |
| Jul 18, 2022 | Biro | ½–½ | Kalogeris | 15th Paleochora Open | ? | |
| Jul 17, 2022 | Kalogeris | 1–0 | Papadimitriou | 15th Paleochora Open | ? | |
| Apr 6, 2022 | Demuth | ½–½ | Kalogeris | EICC 22 | King's Indian Attack | |
| Apr 5, 2022 | Kalogeris | 1–0 | David | European Championship | Mexican Defense | |
| Apr 4, 2022 | Kalogeris | 1–0 | Ciolek | European Individual Chess Championship | Sicilian Defense: Najdorf Variation, Opocensky Variation, Traditional Line | |
| Apr 3, 2022 | Ioannidis | 1–0 | Kalogeris | EICC 22 | Queen's Gambit Declined: Semi-Tarrasch Defense, Main Line | |
| Apr 2, 2022 | Meshkovs | 1–0 | Kalogeris | EICC 22 | King's Indian Attack | |
| Mar 30, 2022 | Asadli | 1–0 | Kalogeris | EICC 22 | Queen's Pawn Game: Symmetrical Variation | |
| Mar 29, 2022 | Kalogeris | ½–½ | Hovhannisyan | EICC 22 | Slav Defense: Exchange Variation | |
| Mar 28, 2022 | Fridman | ½–½ | Kalogeris | EICC 22 | Semi-Slav Defense | |
| Mar 27, 2022 | Kalogeris | ½–½ | Petrosyan | European Individual Chess Championship 2022 | Ruy Lopez: Closed, Delayed Exchange | |
| Dec 19, 2021 | Kalogeris | 0–1 | Tazbir | ERCC | Sicilian Defense: Dragon Variation, Modern Bc4 Variation | |
| Dec 19, 2021 | Kalogeris | 1–0 | Jedrusik | ERCC | Caro-Kann Defense: Classical Variation | |
| Dec 19, 2021 | Lewtak | 0–1 | Kalogeris | ME rapid 2021 | Queen's Pawn Game: London System | |
| Dec 19, 2021 | Dzierzak | 0–1 | Kalogeris | ME rapid 2021 | Italian Game: Giuoco Piano | |
| Dec 19, 2021 | Kovalenko | 1–0 | Kalogeris | ERCC | Slav Defense: Exchange Variation | |
| Dec 18, 2021 | Kalogeris | 1–0 | Panek | ME rapid 2021 | Caro-Kann Defense: Classical Variation | |