But the result is far from certain as the US are being strong challenged by Indonesia in the men's team competition and Australia are under big pressure from the Portuguese women.

"As competition resumes tomorrow, five men’s teams and five women’s teams remain in the hunt to secure a single place in Paris 2024 Olympics for their nation," said ISA President Fernando Aguerre.

"Every heat will carry massive weight.

"We will see the individuals who will collect gold, the nations that will top the overall team’s medals as well as the men’s team and the women’s team who will collect the ultimate prize of a position for the Olympics."

Indonesia's Rio Waida and Ketut Agus look the surfers most likely to frustrate the Olympic ambitions of the US as they are the only team with two surfers left in the men's draw.

The single heat of repechage round 11 tomorrow will have massive implications for the pair as they surf against Australia's Jackson Baker and home athlete Kolohe Andino.

Agus, an alternate for Tokyo 2020 who was on the beach in Japan, knows how important his performance tomorrow will be.

"It’s big for us," Agus said.

"I need to compete for the Olympics, to represent Indonesia.

"In Tokyo I didn’t surf, but I felt the energy there.

"Now I need to fight for the Olympics, for Paris."

Meanwhile Portugal's 25-year-old underdog Guilherme Fonseca, who knocked Andino into the repechage, will face Kanoa Igarashi of Japan - an Olympic silver medallist - Lucca Mesinas of Portugal and Nat Young of the US in the single main round seven heat early tomorrow, from which two surfers will progress to the grand final.

The relentless attack of Portugal's Teresa Bonvalot and Yolanda Hopkins continued today with the two Olympians establishing their nation behind leaders Australia in the women's team standings.

American hopes rest with Kirra Pinkerton, a former World Surf League junior champion.