May the 29th, 2026 – Croatia and water polo are words that naturally blend together, so it makes perfect sense that the country will be the one to host the world’s first 4×4 water polo championship.
The tournament, which introduces a faster and more compact version of the traditional sport, is attracting growing international attention as organisers attempt to modernise water polo and make it more accessible, dynamic and television-friendly. Fittingly, one of water polo’s most passionate nations will be the first to stage the format on the global stage.
Traditional water polo is typically played with seven players per side in large pools over multiple periods. The new 4×4 format significantly reduces the number of players and playing area, creating a faster-paced and more intense version of the game. The concept has been compared to the relationship between traditional basketball and 3×3 basketball — a shorter, more explosive variation designed to increase speed, transitions and spectator appeal.
croatia’s water polo traditions run deep

Croatia has long been one of the world’s strongest water polo nations. The country regularly competes at the highest international level and has produced some of the sport’s most respected clubs and players. Cities along the Adriatic coast maintain especially strong water polo traditions, where the sport forms part of local sporting identity alongside football and basketball. Because of that legacy, Croatia was seen as an ideal location to launch the new format internationally.
One of the main goals behind 4×4 water polo is to make the sport more accessible for audiences and organisers. Traditional water polo can be physically demanding to stage due to large pool requirements and complex team structures. The smaller format reduces logistical demands while increasing the pace of play. Supporters argue this could help water polo expand into new markets and attract younger audiences through shorter, faster matches better suited to modern broadcasting and social media formats.
The reduced number of players creates significantly more open space in the pool. This leads to faster counterattacks, more one-on-one situations and increased scoring opportunities compared to traditional matches. Organisers hope the format will feel more visually dynamic for spectators unfamiliar with standard water polo rules.
The emergence of 4×4 water polo reflects a broader international trend toward shorter and more commercially adaptable sports formats. Over the past decade, many sports have introduced condensed versions designed for younger audiences, digital platforms and event-based competitions. Examples include 3×3 basketball, T10 cricket and shorter forms of rugby and volleyball. Water polo is now attempting a similar evolution.
croatia – the country of incredible sporting talent

Hosting the first championship also reinforces Croatia’s growing international sporting profile. Despite its relatively small population, the country consistently performs strongly across multiple sports and increasingly positions itself as a host for international competitions and sporting innovation. Water polo remains one of Croatia’s most internationally respected team sports, giving the tournament additional symbolic importance.
The choice of Croatia also highlights the continued connection between the Adriatic region and water polo culture. Coastal cities across Dalmatia maintain strong traditions of summer water sports, local clubs and outdoor aquatic competition. In many Adriatic communities, water polo is viewed not only as a professional sport, but as part of coastal identity itself.
Ultimately, the championship may serve as a broader experiment for the sport’s future direction. If the format proves successful with audiences, organisers and broadcasters, 4×4 water polo could eventually become a recurring international competition or even expand into multi-sport events. For now, however, Croatia will become the testing ground for whether a modernised version of one of the world’s oldest aquatic team sports can capture global attention in a new way
head down to dubrovnik for a world’s first!
The world’s first official 4×4 Water Polo Championship will take place in Dubrovnik from the 31st of August to the 6th of September, 2026.
The event is officially called the World Aquatics Water Polo 4×4 Open Championships, and it will serve as the global debut of the new WP4 format.
One of the biggest details is that the main arena will reportedly be staged in Dubrovnik’s historic Old Town harbour (“Porat”), directly connecting the tournament with the city’s famous water polo tradition and the legendary local “Divlja liga” summer competition.
The tournament will include an Elite National Team division and a Masters division for club and veteran teams.










