International
Chess Federation
| Event code | 452183 |
| Tournament Name | IV Open de Classicas da Velhinha |
| City | Lisboa |
| Country | POR |
| Number of players | 30 |
| System | s |
| Hybrid | NO |
| Category | 0 |
| Start Date | 2025-12-10 |
| End Date | 2025-12-20 |
| Date received | 2025-12-29 |
| Date registered | 2025-11-16 |
| Type | |
| Time Control | Standard: 90 minutes with 30 second increment from move 1 |
| Zone | |
| Chief Arbiter | Alves, Luis Miguel (POR) |
| Chief Organizer | |
| Organizer | |
| PGN file | |
| Orig.Report | View |
| View Report | Rated for January 2026 as Standard |
More information: The full list of tournaments received from Portugal for January 2026