| Country | Chess tournament name | Start | End |
|---|---|---|---|
 |
Open Liberia | 2020-12-15 | 2020-12-15 |
|
Open Nandayure | 1990-12-16 | 1990-12-16 |
|
Open Pococi | 1990-12-16 | 1990-12-16 |
|
Open Santa Ana | 1990-12-16 | 1990-12-16 |
|
Open San Jose | 1990-12-16 | 1990-12-16 |