| Jan 6, 2026 | Bartzos | 1–0 | Melegkos | Round 6: Bartzos, Iasonas - Melegkos, Konstantinos | King's Indian Attack: Wahls Defense | |
| Jan 3, 2026 | Melegkos | 0–1 | Travlos | Round 3: Melegkos, Konstantinos - Travlos, Markos | Italian Game: Classical Variation, Giuoco Pianissimo | |
| Oct 27, 2025 | Melegkos | 0–1 | Jevglevski | Round 2: Melegkos, Konstantinos - Jevglevski, Lev | Petrov's Defense: Nimzowitsch Attack | |
| Jul 12, 2025 | Melegkos | ½–½ | Volanis | Round 9: Melegkos, Konstantinos - Volanis, Vasileios | Sicilian Defense: Modern Variations, Main Line | |
| Jul 11, 2025 | Xynidis | 1–0 | Melegkos | Round 8: Xynidis, Maximos - Melegkos, Konstantinos | King's Indian Defense: Normal Variation, King's Knight Variation | |
| Jul 10, 2025 | Alexandrakis | 0–1 | Melegkos | Round 7: Alexandrakis, Alexios - Melegkos, Konstantinos | Sicilian Defense: Moscow Variation | |
| Jul 9, 2025 | Melegkos | 1–0 | Poursalidis | Round 5: Melegkos, Konstantinos - Poursalidis, Kyriakos | Sicilian Defense: Hyperaccelerated Fianchetto | |
| Jul 8, 2025 | Georgios Almetidis | 0–1 | Melegkos | Round 4: Georgios Almetidis - Melegkos, Konstantinos | Indian Defense: Omega Gambit | |
| Jul 6, 2025 | Melegkos | 0–1 | Drakakis | Round 1: Melegkos, Konstantinos - Drakakis, Georgios Th | Scandinavian Defense: Main Line | |
| Jul 6, 2025 | Melegkos | ½–½ | Borisov | Round 6: Melegkos, Konstantinos - Borisov, Filippos | Italian Game: Paris Defense | |
| Apr 27, 2025 | Melegkos | 0–1 | Borisov | Round 7: Melegkos, Konstantinos - Borisov, Filippos | Italian Game: Hungarian Defense | |
| Apr 26, 2025 | Melegkos | 0–1 | Xynidis | Round 6: Melegkos, Konstantinos - Xynidis, Maximos | French Defense: Advance Variation, Milner-Barry Gambit, Hector Variation | |
| Apr 25, 2025 | Poursalidis | 0–1 | Melegkos | Round 5: Poursalidis, Kyriakos - Melegkos, Konstantinos | Queen's Pawn Game: Zukertort Variation | |
| Apr 24, 2025 | Wolters | ½–½ | Melegkos | Round 4: Wolters, Maximos - Melegkos, Konstantinos | Queen's Gambit Declined: Queen's Knight Variation | |
| Apr 23, 2025 | Melegkos | 1–0 | Koutsioumpos | Round 3: Melegkos, Konstantinos - Koutsioumpos, Grigorios | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Jun 28, 2024 | Xynidis | * | Melegkos | Round 9: Xynidis, Maximos - Melegkos, Konstantinos | ? | |
| Jun 27, 2024 | Melegkos | * | Androulakis | Round 8: Melegkos, Konstantinos - Androulakis, Radamanthys Pavlos | ? | |
| Jun 26, 2024 | Vasileiou | * | Melegkos | Round 7: Vasileiou, Konstantinos D - Melegkos, Konstantinos | ? | |
| Jun 25, 2024 | Travlos | * | Melegkos | Round 6: Travlos, Markos - Melegkos, Konstantinos | ? | |
| Jun 25, 2024 | Melegkos | * | Vallianos | Round 5: Melegkos, Konstantinos - Vallianos, Athanasios | ? | |
| Jun 24, 2024 | Melegkos | * | Poulimenos | Round 4: Melegkos, Konstantinos - Poulimenos, Nikolaos | ? | |
| Jun 23, 2024 | Di Giorgio | * | Melegkos | Round 3: Di Giorgio, Nikolaos - Melegkos, Konstantinos | ? | |
| Jun 23, 2024 | Volanis | * | Melegkos | Round 2: Volanis, Vasileios - Melegkos, Konstantinos | ? | |
| Jun 22, 2024 | Melegkos | 0–1 | Patsiotis | Round 1: Melegkos, Konstantinos - Patsiotis, Konstantinos | Italian Game: Classical Variation, Giuoco Pianissimo, with h6 | |
| Dec 1, 2024 | Melegkos | 0–1 | Raptis | Round 6: Melegkos, Konstantinos - Raptis, Filippos | Pirc Defense | |
| Nov 29, 2024 | Basios | 1–0 | Melegkos | Round 2: Basios, Georgios - Melegkos, Konstantinos | Tarrasch Defense: Symmetrical Variation | |
