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Old Line Open
| Full information | website |
| When | March 20-21, 2026 |
| City | Rockville |
| State | Maryland |
| Prize fund | $8,000 |
| Rating system | USCF, FIDE |
| Advanced entries | advanced |
| Registration | register |
| FIDE titles norms possibility | No |
| Organizer | Maryland Chess Association |
| Results | results |
