| Apr 19, 2026 | Koutsioumpos | 0–1 | Nikitakis | Round 8: Koutsioumpos, Ioannis - Nikitakis, Michail | English Opening: King's English Variation, Four Knights Variation, Fianchetto Line, with Nb6 | |
| Apr 17, 2026 | Koutsioumpos | ½–½ | Skordilis | Round 6: Koutsioumpos, Ioannis - Skordilis, Stefanos | Slav Defense | |
| Apr 17, 2026 | Koutsioumpos | 0–1 | Kotovos | Round 4: Koutsioumpos, Ioannis - Kotovos, Konstantinos | English Opening: Symmetrical Variation, Ultra-Symmetrical Variation | |
| Jan 7, 2026 | Koutsioumpos | 1–0 | Ioannidis | Round 7: Koutsioumpos, Ioannis - Ioannidis, Agis | English Opening: King's English Variation | |
| Jan 6, 2026 | Kalogeropoulos | ½–½ | Koutsioumpos | Round 6: Kalogeropoulos, Konstantinos - Koutsioumpos, Ioannis | Scandinavian Defense: Valencian Variation | |
| Jan 5, 2026 | Koutsioumpos | 0–1 | Gkountis | Round 5: Koutsioumpos, Ioannis - Gkountis, Paraschos | English Opening: King's English Variation | |
| Jan 4, 2026 | Koutsioumpos | 1–0 | Mastichiadis | Round 4: Koutsioumpos, Ioannis - Mastichiadis, Markos | English Opening: King's English Variation | |
| Jan 3, 2026 | Michailidis | ½–½ | Koutsioumpos | Round 3: Michailidis, Georgios Savvas - Koutsioumpos, Ioannis | Scandinavian Defense: Valencian Variation | |
| Jan 3, 2026 | Koutsioumpos | * | Sideropoulos | Round 2: Koutsioumpos, Ioannis - Sideropoulos, Georgios N | Sicilian Defense: Modern Variations, Main Line | |
| Apr 27, 2025 | Koutsioumpos | 1–0 | Chatzimichail | Round 7: Koutsioumpos, Ioannis - Chatzimichail, Georgios | English Opening: Anglo-Indian Defense | |
| Apr 26, 2025 | Ioannidis | 1–0 | Koutsioumpos | Round 6: Ioannidis, Agis - Koutsioumpos, Ioannis | Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation | |
| Apr 25, 2025 | Koutsioumpos | 1–0 | Nikomanis | Round 5: Koutsioumpos, Ioannis - Nikomanis, Vasileios | Ponziani Opening | |
| Apr 24, 2025 | Koutsioumpos | 1–0 | Gomatos | Round 4: Koutsioumpos, Ioannis - Gomatos, Myron Ilias | Italian Game: Hungarian Defense | |
| Apr 23, 2025 | Koutsioumpos | 0–1 | Kalogeropoulos | Round 2: Koutsioumpos, Ioannis - Kalogeropoulos, Konstantinos | Italian Game: Two Knights Defense | |
| Jun 28, 2024 | Koutsioumpos | ½–½ | Bimpikas | Round 9: Koutsioumpos, Ioannis - Bimpikas, Ioannis | Ponziani Opening: Jaenisch Counterattack | |
| Jun 27, 2024 | Doukas | 1–0 | Koutsioumpos | Round 8: Doukas, Nikolaos - Koutsioumpos, Ioannis | Sicilian Defense: Accelerated Dragon, Maróczy Bind, Breyer Variation | |
| Jun 25, 2024 | Nikitakis | ½–½ | Koutsioumpos | Round 6: Nikitakis, Michail - Koutsioumpos, Ioannis | Sicilian Defense: O'Kelly Variation, Normal System | |
| Jun 25, 2024 | Koutsioumpos | 1–0 | Stefanis | Round 5: Koutsioumpos, Ioannis - Stefanis, Stefanos G | Ponziani Opening: Jaenisch Counterattack | |
| Jun 24, 2024 | Koutsioumpos | 1–0 | Zachos | Round 4: Koutsioumpos, Ioannis - Zachos, Konstantinos | Sicilian Defense: Dragon Variation, Classical Variation | |
| Jun 23, 2024 | Toumpakaris | 1–0 | Koutsioumpos | Round 3: Toumpakaris, Grigorios Emmanouil - Koutsioumpos, Ioannis | London System: Poisoned Pawn Variation | |
| Jun 23, 2024 | Koutsioumpos | 1–0 | Kalogeropoulos | Round 2: Koutsioumpos, Ioannis - Kalogeropoulos, Konstantinos | Italian Game: Giuoco Piano | |
| Jun 21, 2024 | Koutsioumpos | ½–½ | Megagiannis | Round 7: Koutsioumpos, Ioannis - Megagiannis, Maximos | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| May 12, 2024 | Kouvaros | 0–1 | Koutsioumpos | Round 7: Kouvaros, Vasileios Zeiron - Koutsioumpos, Ioannis | Sicilian Defense: Old Sicilian | |
| May 8, 2024 | Toumpakaris | 1–0 | Koutsioumpos | Round 3: Toumpakaris, Grigorios Emmanouil - Koutsioumpos, Ioannis | Queen's Pawn Game: London System | |
