Delays due to poor conditions are completely normal in surfing competitions, with organisers having a 10-day window to run four days of heats - though picking those days is not always easy.
The swell is set to drop during Thursday and into Friday before a small bump up on Saturday, making it the likely day to find the medallists.
Tahiti's Teahupo'o delivered some of the best conditions ever seen for a competition for the men's round three on Monday, before strong winds ripped through the lineup and continued into Tuesday and Wednesday.
First up at 19:00 CET is Australian world champion Tyler Wright against Israel's Anat Lelior before local favourite Vahine Fierro takes on countrywoman Johanne Defay in heat two.
Friendly fire is a theme for the men's quarter-finals too. France's Kauli Vaast and Joan Duru will meet in their quarter-final before Brazil's Joao Chianca and Gabriel Medina come up against each. Ethan Ewing and Jack Robinson of Australia will also be fighting for a semi-final berth.
