The 32-year-old Brazilian makes a triumphant return to a Championship Tour podium for the first time in seven years.
The Californian tops Courtney Conlogue and Pauline Ado in Round Three.
Fitzgibbons moves into Quarterfinals with a win over Nikki Van Dijk and Keely Andrew.
Jordy Smith and John John Florence turned in the top two performances of the day at Lower Trestles Wednesday.
Fun surf led to some serious fireworks at Lower Trestles during Round Three.
As eliminations began at the Swatch Pro, there were a few standouts who electrified the proceedings Tuesday at Trestles.
Tuesday got started with another round of upsets, and the heavy moments kept coming.
The San Clemente transplant surfed Trestles like her life depended on it Tuesday during Round Two at the Swatch Pro.
Tyler Wright earned a 7.43, eliminating wildcard Macy Callaghan in Round Two. But it wasn't a total rout.