| Jun 14, 2026 | Gkrekidis | 0–1 | Skodras | Round 5: Gkrekidis, Konstantinos - Skodras, Dionysios Eleftherios | French Defense: Exchange Variation | |
| Jun 14, 2026 | Tsonoulis | 1–0 | Gkrekidis | Round 4: Tsonoulis, Athanasios 41520 - Gkrekidis, Konstantinos | Italian Game: Giuoco Pianissimo | |
| Jun 14, 2026 | Gkrekidis | 0–1 | Christou | Round 2: Gkrekidis, Konstantinos - Christou, Lambros | Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation | |
| Mar 14, 2026 | Gkrekidis | 0–1 | Argyropoulos | Round 7: Gkrekidis, Konstantinos - Argyropoulos, Alexandros | Italian Game: Giuoco Pianissimo | |
| Mar 14, 2026 | Gkrekidis | 1–0 | Sioumis | Round 5: Gkrekidis, Konstantinos - Sioumis, Athanasios | Italian Game: Giuoco Pianissimo, Normal | |
| Jun 28, 2024 | Katsoulis | 1–0 | Gkrekidis | Round 9: Katsoulis, Nikolaos - Gkrekidis, Konstantinos | Italian Game: Two Knights Defense, Max Lange Attack | |
| Jun 27, 2024 | Gkrekidis | 0–1 | Patsiotis | Round 8: Gkrekidis, Konstantinos - Patsiotis, Konstantinos | Italian Game: Giuoco Piano | |
| Jun 26, 2024 | Borisov | 0–1 | Gkrekidis | Round 7: Borisov, Filippos - Gkrekidis, Konstantinos | Italian Game: Giuoco Pianissimo | |
| Jun 25, 2024 | Gkrekidis | * | Fragkakis | Round 6: Gkrekidis, Konstantinos - Fragkakis, Georgios | ? | |
| Jun 24, 2024 | Rompanos | 0–1 | Gkrekidis | Round 4: Rompanos, Alexandros - Gkrekidis, Konstantinos | Ruy Lopez: Morphy Defense, Neo-Arkhangelsk Variation | |
| Jun 23, 2024 | Gkrekidis | ½–½ | Poursalidis | Round 3: Gkrekidis, Konstantinos - Poursalidis, Kyriakos | Italian Game: Giuoco Pianissimo, Canal Variation | |
| Jun 23, 2024 | Kasmeridis | * | Gkrekidis | Round 2: Kasmeridis, Orfeas - Gkrekidis, Konstantinos | ? | |
| Jun 21, 2024 | Gkrekidis | 0–1 | Bartzos | Round 5: Gkrekidis, Konstantinos - Bartzos, Iasonas | Sicilian Defense: Dragon Variation, Yugoslav Attack, Czerniak Variation | |
