International
Chess Federation
| Event code | 443850 |
| Tournament Name | ACC Sirius Open Oct 2025 |
| City | Athens |
| Country | GRE |
| Number of players | 15 |
| System | s |
| Hybrid | NO |
| Category | 0 |
| Start Date | 2025-10-13 |
| End Date | 2025-11-09 |
| Date received | 2025-11-25 |
| Date registered | 2025-09-26 |
| Type | |
| Time Control | Standard: 60 minutes with 30 seconds increment from move 1 |
| Zone | |
| Chief Arbiter | Kalesis, Nikolaos (GRE) |
| Chief Organizer | |
| Organizer | |
| PGN file | |
| Orig.Report | View |
| View Report | Rated for December 2025 as Standard |
More information: The full list of tournaments received from Greece for December 2025