| Ioannidis, Ev2469 | 1-0 | Mantazis, Georgios Rafail2109 | 9th Vardaris Open 2026 | 2026 |
| Kolytas, Spiridon2072 | 1-0 | Mantazis, Georgios Rafail2077 | 46th White Tower Open A | 2026 |
| Mantazis, Georgios Rafail2077 | ½-½ | Tsarsitalidis, Konstantinos2236 | 46th White Tower Open A | 2026 |
| Tsaknakis, Zisis2321 | 1-0 | Mantazis, Georgios Rafail2077 | 46th White Tower Open A | 2026 |
| Mantazis, Georgios Rafail2077 | 1-0 | Kollias, Ioannis K.2061 | 46th White Tower Open A | 2026 |
| Daskalov, D2306 | 1-0 | Mantazis, Georgios Rafail2077 | 46th White Tower Open A | 2026 |
| Mantazis, Georgios Rafail2077 | 0-1 | Krallis, Christos2419 | 46th White Tower Open A | 2026 |
| Kalogridis, Antonios2403 | 0-1 | Mantazis, Georgios Rafail2077 | 46th White Tower Open A | 2026 |
| Mantazis, Georgios Rafail2077 | 1-0 | Misios, Konstantinos1900 | 46th White Tower Open A | 2026 |
| Mantazis, Georgios Rafail2077 | ½-½ | Ljepic, Andrej2435 | 33rd EY Open U16 2025 | 2025 |
| Mantazis, Georgios Rafail2107 | ½-½ | Dotzer, Lukas2463 | World Youth Open U16 2025 | 2025 |
| Kalomiris, Athanasios1963 | 0-1 | Mantazis, Georgios Rafail2053 | 7th SKG Open 2025 | 2025 |
| Mantazis, Georgios Rafail2053 | 1-0 | Papageorgiou, I21904 | 7th SKG Open 2025 | 2025 |
| Ouzounis, Konstantinos Kyr1928 | 1-0 | Mantazis, Georgios Rafail2053 | 7th SKG Open 2025 | 2025 |
| Tsinaris, F1904 | ½-½ | Mantazis, Georgios Rafail2053 | 7th SKG Open 2025 | 2025 |