Note: Single-source report; awaiting corroboration.
The women's 4x4 water polo tournament opened with a notable 3-0 win by the United States over Spain. The USA built a 4-0 advantage in the second set and maintained strong defense throughout. Jenna Flynn scored three times, while goalkeeper Lauren Steele made 10 saves. Spain managed three goals, with Carlota Penalver scoring twice. Despite a last-second attempt to equalize by Spanish goalkeeper Mariona Terre, the USA held on.
Russia dominated South Africa with a 3-0 win, scoring 23 goals without conceding. Mariia Makarova and Elvina Sitdikova led the Russian attack with six and five goals, respectively. The Russian defense limited South Africa to 12 attempts, stopping all extra and penalty shots.
Australia secured a 3-1 win over Greece. Australia started strong with a 5-0 lead in the first set, while Greece rallied to take the third set 5-4, helped by a last-moment goal from Eirini Stavridou. Olivia Mitchell scored six goals for Australia, with Saskia Dunn adding three. Greece's goalkeeper Eftychia Konstantopoulou made 12 saves to keep the match competitive.