The smiley 17-year-old defeats Japan's Joh Azuchi in the Final at Kiama's Bombo Beach in New South Wales, Australia.
O atual campeão sul-americano Mateus Herdy perdeu na segunda-feira de ondas pequenas na Austrália.
More high seeds drop on a short but intense day in Kiama.
O saquaremense João Chianca passou pela repescagem no domingo, mas o peruano Jhonny Guerrero perdeu e ficou em 25.o lugar.
Upsets begin to send shockwaves through Kiama.
The world's best junior surfers are settling some remaining 2017 business on the South Coast of New South Wales, Australia.
Samuel Pupo e Mateus Herdy ganharam as duas primeiras baterias do WSL Jeep World Junior Championship 2017.
Mateus Herdy and Cody Young set the pace on opening day at Bombo Beach.
Brazil's Mateus Herdy earned the highest score of Round One at the Jeep World Junior Championship with his lofty approach.