Carissa Moore made her 100th WSL Championship Tour start ©Getty Images

American Carissa Moore eased through her heat at the World Surf League (WSL) Championship Tour in Rottnest Island, but Tatiana Weston-Webb was forced into the elimination round.

Moore and Weston-Webb were the top two surfers in the women’s WSL Championship Tour standings heading into the last Australian event of the season.

Scores of 6.67 and 9.50 saw Moore negotiate her seeding round heat on her 100th start in the Championship Tour.

Her total of 16.17 was enough to advance to the round of 16, alongside compatriot Malia Manuel, who was second on 14.50.

Weston-Webb, the winner of the previous stop at Margaret River, was unable to secure a top two finish in her seeding round heat.

The Brazilian surfer scored 6.17 to finish third, with Japan’s Amuro Tsuzuki an Australia’s Keely Andrew advancing with scores of 7.80 and 6.83, respectively.

Several surfers struggled to adapt to the conditions at Strickland Bay, which led to several low scoring heats.

Defending men’s world champion Italo Ferreira advanced to the round of 32 with a score of just 5.83.

The Brazilian finished behind his compatriot Adriano de Souza, who scored 6.50 on a single wave.

Australia’s Taj Burrow was forced into the elimination round after scoring just 0.7 in the heat.

Men’s ranking leader Gabriel Medina had no trouble in scoring points during his heat.

Efforts of 7.67 and 9.33 saw the Brazilian cruise into the next round with an overall total of 17.00.

Kael Walsh finished as runner-up to Medina in the heat on 9.00, with his compatriot Jack Freestone dropping into the elimination round with a score of 5.96.

Competition is set to take place from until May 26 at the Australian venue.

Three events have already been held in Australia to date this season, with the Newcastle Cup, Narrabeen Classic and Margaret River Pro competitions completed in April and May.

The Rottnest Search event rounds off Australia’s hosting this season.

Events will follow in the United States, Mexico, Brazil and Tahiti, before California stages the finals in September.