International
Chess Federation
| Event code | 421999 |
| Tournament Name | I Torneio de Duplas Rio 40o |
| City | Rio de Janeiro RJ |
| Country | BRA |
| Number of players | 200 |
| System | s |
| Hybrid | NO |
| Category | 0 |
| Start Date | 2025-05-10 |
| End Date | 2025-05-10 |
| Date received | 0000-00-00 |
| Date registered | 2025-04-25 |
| Type | |
| Time Control | Rapid: 10 minutes for game with 5 seconds increment from move 1 |
| Zone | |
| Chief Arbiter | Einhorn, Marcelo (BRA) |
| Chief Organizer | Monteiro Rosas, Ednilson (BRA) |
| Organizer | |
More information: The full list of tournaments received from Brazil for June 2025