International
Chess Federation
| Event code | 430915 |
| Tournament Name | 2025 Winter Tuesday Night Marathon - 1600-1999 Round 4-7 |
| City | San Francisco, CA |
| Country | USA |
| Number of players | 25 |
| System | s |
| Hybrid | NO |
| Category | 0 |
| Start Date | 2025-11-25 |
| End Date | 2025-12-16 |
| Date received | 0000-00-00 |
| Date registered | 2025-07-06 |
| Type | |
| Time Control | Standard: 90 minutes with 30 second increment from move 1 |
| Zone | |
| Chief Arbiter | Sztaray, Judit (USA) (AO) |
| Deputy Chief Arbiter | Mason, Scott (USA) |
| Chief Organizer | Sztaray, Judit (USA) |
| Organizer | |
More information: The full list of tournaments received from United States of America for January 2026