International
Chess Federation
| Event code | 429016 |
| Tournament Name | 2025 CalChess State Open & Class FIDE Championship - AB |
| City | Cupertino, CA |
| Country | USA |
| Number of players | 50 |
| System | s |
| Hybrid | NO |
| Category | 0 |
| Start Date | 2025-08-29 |
| End Date | 2025-09-01 |
| Date received | 0000-00-00 |
| Date registered | 2025-06-22 |
| Type | |
| Time Control | Standard: 90 minutes with 30 second increment from move 1 |
| Zone | |
| Reported mult. round days | 3 |
| Chief Arbiter | Langland, Jordan (USA) |
| Deputy Chief Arbiter | Langland, Thomas (USA) |
| Chief Organizer | Azhar, Salman (USA) |
| Organizer | |
More information: The full list of tournaments received from United States of America for October 2025