United Cup Sydney 2025 Dates. When is the united cup 2025? All countries participating in the 2025 united cup have been placed into their groups and assigned to host cities in perth and sydney.
Eighteen countries will take part in the 2025 event, with sydney and perth set to host nine teams each. The third edition of the united cup, the atp and wta tours’ joint venture, begins on friday with prize money and ranking points at stake.