Gill Potaka-Osborne, Alan Caird, Mita Davis, Ralph Visser, Harrison Plumridge, and Airiini Power were in the waka.
"A couple of these members are just new to the sport they were expecting to be behind the junior [waka] team but beat them by approximately one and a half minutes," said Rush.
Second place with 87.32 per cent prognostic went to the Wellington College team of Jack Perkins, Robert Cookson, Marcus Gamboni, Campbell Caird, and cox Harry Russon in the Boys Under 18 Lightweight Coxed Quad class.
AWRC's Hugh Pawson (86.07 per cent) was third as a Boys Under 17 Single competitor.
Racing next month will be held on September 8, with AWRC as the host club.