Note: Single-source report; awaiting corroboration.

The inaugural WP4 World Championships, introducing a faster and more accessible water polo format with fewer players and a smaller playing area, took place in Dubrovnik from August 31 to September 6, 2026. The event featured 84 men's and women's matches, producing over 1,800 goals—an average of more than 21 goals per game. The Old Harbour in Dubrovnik provided a fitting backdrop, combining Croatia's water polo tradition with the new format's identity.

In the women's competition, the United States secured the gold medal by defeating Spain 3-0 in the final. The US won the first set 4-1, countered a Spanish comeback in the second set with two late goals from Jewel Roemer, and sealed victory in the third set. Russia claimed the bronze medal after a 3-0 win against Australia.

Ryann Neushul of the USA was named Women's Most Valuable Player, scoring 36 goals in seven matches. Spain's Mariona Terre received the Best Goalkeeper award for her decisive saves during close games.

In the men's final, Spain overcame Russia in a tightly contested match that went to penalties after four sets. Spain won the shootout 3-1, securing the first men's WP4 world title with a 3-2 victory. Hosts Croatia took bronze by defeating Serbia 3-0 before a home crowd.

Croatia's Roko Peliacaric earned Men's Most Valuable Player honors for his goalscoring and attacking play. Spain's Didac Garcia was named Best Goalkeeper, particularly for his performance in the final.