Delamere Academy pupils have won a water polo tournament involving pupils from 25 Cheshire West & Chester primary schools.
The tournaments have been taking place since the beginning of the year, with the final taking place on April 8.
Delamere won with 17 points overall with Newton Primary School a close second with 16 points.
The project had the backing from Swim North West, with cash for hats, polo balls and the cost of the pool hire to run the event.
Former Newton Primary School pupil Beth Bolton, who plays water polo for Great Britain, refereed some of the matches with pupils from her old school.
She began playing aged nine and then progressed to the City of Chester Water Polo Club. She went on to join the Liverpool Ladies team and then the junior GB team.