| Country | Chess tournament name | Start | End |
|---|---|---|---|
 |
May Day Chess Championship 2025 - Open Event | 2025-05-01 | 2025-05-01 |
|
May Day Chess Championship 2025 - Under 11 (Girls) | 2025-05-01 | 2025-05-01 |
|
May Day Chess Championship 2025 - Under 11 (Open) | 2025-05-01 | 2025-05-01 |
|
May Day Chess Championship 2025 - Under 09 (Girls) | 2025-05-01 | 2025-05-01 |
|
May Day Chess Championship 2025 - Under 09 (Open) | 2025-05-01 | 2025-05-01 |