Note: Single-source report; awaiting corroboration.
Croatia, Georgia, Serbia, Spain, and Montenegro each secured maximum points in their matches at the 4x4 World Aquatics competition, while Malta, Russia, and Hong Kong China I advanced via penalty shootouts. The competition featured unique conditions, with only one referee, three-shot shootouts, and five-minute periods, played against scenic backdrops such as the Old Harbour and a pool with a wall on one side. The matches were marked by fast-paced play and high scoring.
In the opening match, Russia defeated the United States in a penalty shootout, becoming the first team to win in 4x4 Worlds history. The match ended 2-2 in regular time, and Russia prevailed 3-2 on penalties, despite penalty struggles. Key players included Roman Usov, who scored six goals, and goalkeeper Petr Fedatov with 11 saves for Russia. USA's captain Stefan Vavic scored four goals, while goalkeeper Christopher Whitelegge blocked 10 shots.
The contest between Club Japan and Hong Kong China I also went to penalties after a 2-2 regular time draw. Hong Kong won 2-0 in the shootout, with captain Hei Man Cheng scoring four goals. Club Japan's Shotara Yamada and captain Atsushi Arai also each scored four goals.
Georgia achieved a 3-0 victory over Hong Kong China II, showing strong offense, especially in the first set with three goals in under a minute. Georgia's ability to capitalize on counterattacks and extra shots stood out in the match.