| Apr 16, 2026 | Gialelis | 0–1 | Stergatos | Round 3: Gialelis, Konstantinos - Stergatos, Dimitrios | Sicilian Defense: Hyperaccelerated Dragon | |
| Apr 15, 2026 | Gialelis | 0–1 | Kiryttopoulos | Round 1: Gialelis, Konstantinos - Kiryttopoulos, Ioannis | Sicilian Defense: Four Knights Variation | |
| Jan 3, 2026 | Antoniadis | 1–0 | Gialelis | Round 2: Antoniadis, Artiom - Gialelis, Konstantinos | Rapport-Jobava System | |
| Nov 30, 2025 | Paterakis | 0–1 | Gialelis | Round 6: Paterakis, Panagiotis Emm - Gialelis, Konstantinos | Nimzo-Indian Defense: Classical Variation | |
| Nov 29, 2025 | Asvestopoulos | ½–½ | Gialelis | Round 4: Asvestopoulos, Sergios - Gialelis, Konstantinos | Ruy Lopez: Cozio Defense | |
| Nov 28, 2025 | Gialelis | 1–0 | Gallos | Round 2: Gialelis, Konstantinos - Gallos, Vasileios | Ruy Lopez: Morphy Defense, Modern Steinitz Defense | |
| Nov 27, 2025 | Xouplidis | 0–1 | Gialelis | Round 1: Xouplidis, Filippos - Gialelis, Konstantinos | Zukertort Opening | |
| Jun 28, 2024 | Gialelis | ½–½ | Skarlas | Round 9: Gialelis, Konstantinos - Skarlas, Vasileios | Sicilian Defense: Najdorf Variation, English Attack | |
| Jun 27, 2024 | Ioannidis | 1–0 | Gialelis | Round 8: Ioannidis, Konstantinos I - Gialelis, Konstantinos | Nimzo-Larsen Attack: Classical Variation | |
| Jun 26, 2024 | Gialelis | 1–0 | Valsamidis | Round 7: Gialelis, Konstantinos - Valsamidis, Efstathios | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jun 25, 2024 | Papakyriakou | 1–0 | Gialelis | Round 6: Papakyriakou, Petros - Gialelis, Konstantinos | English Opening: Symmetrical Variation | |
| Jun 25, 2024 | Gialelis | 1–0 | Fraidakis | Round 5: Gialelis, Konstantinos - Fraidakis, Matthaios Ioannis | Sicilian Defense: Accelerated Dragon, Maróczy Bind | |
| Jun 24, 2024 | Paterakis | 0–1 | Gialelis | Round 4: Paterakis, Panagiotis Emm - Gialelis, Konstantinos | Indian Defense | |
| Jun 23, 2024 | Nikakis | ½–½ | Gialelis | Round 3: Nikakis, Filippos - Gialelis, Konstantinos | English Opening: King's English Variation | |
| Jun 23, 2024 | Gialelis | 0–1 | Kiryttopoulos | Round 2: Gialelis, Konstantinos - Kiryttopoulos, Ioannis | Sicilian Defense: Lasker-Pelikan Variation | |
| Jun 22, 2024 | Gialelis | 1–0 | Ouzounstefanis | Round 1: Gialelis, Konstantinos - Ouzounstefanis, Ioannis | Sicilian Defense: Dragon Variation, Yugoslav Attack | |
