International
Chess Federation
| Event code | 421542 |
| Tournament Name | 2025 Washington Open - Premier (U1800) |
| City | Redmond, WA |
| Country | USA |
| Number of players | 50 |
| System | s |
| Hybrid | NO |
| Category | 0 |
| Start Date | 2025-05-24 |
| End Date | 2025-05-25 |
| Date received | 0000-00-00 |
| Date registered | 2025-04-22 |
| Type | |
| Time Control | Standard: 30 Moves in 90 Min. Incr. 30 Sec. / / 30 Min. Incr. 30 Sec. |
| Zone | |
| Reported mult. round days | 3 |
| Chief Arbiter | Atikankhotchasee, Manunthon (THA) (FI) |
| Deputy Chief Arbiter | Mayer, Jacob (USA) |
| Chief Organizer | Sinanan, Joshua (USA) |
| Organizer | |
More information: The full list of tournaments received from United States of America for June 2025