Austinmer will represent the nation in next month's international surf boat series against New Zealand.
Competing in Sunday's selection trial at Port Kembla Beach, Austinmer emerged from a classy field to claim victory.
Guided by experienced sweep Jack Patison, Austi will line up as the Australian open men's crew against the Kiwis at New Zealand's Waihi Beach on February 9.
North Cottesloe will represent the Aussies in the open women's division.
Twenty-three crews contested the open men's selection series on Sunday, while 16 crews competed for the open women's crown.
Racing was scheduled for North Wollongong but rough conditions forced organisers to shift the event to Port Kembla.