Note: Single-source report; awaiting corroboration.
World Aquatics has announced the inaugural Water Polo 4x4 Open Championships, scheduled for 31 August to 6 September 2026. This event marks the first global competition for the Water Polo 4x4 format.
Fans can watch matches live and access results and schedules on the official World Aquatics website and social media channels, including YouTube and Instagram. The championship aims to showcase this new format to a global audience.