In clean two-to-four foot waves at Huntington Beach, the Brazilian put in another solid display in his round of 16 heat to set up a last-eight clash with compatriot Gabriel Medina.
“It will be nice, I haven’t had a heat against Gabriel (Medina) before and I’m looking forward to it,” de Souza said.
"Gabriel is such a good surfer in all conditions, he got second in Fiji and he’s obviously good out here. He’s a top five talent and it looks like the waves will increase tomorrow. We’ll see what the conditions are like tomorrow and we’ll see what happens.”
Dane Reynolds set up a quarter-final with 11-times world champion Kelly Slater with a come-from-behind win over former US Open champion Nathaniel Curran.
“I just surf a lot and try it over and over again,” Reynolds said. “When it’s a bad wave you feel less pressure because it’s up to you and you want to push it as hard as you can.
"I hate when I’m on a good wave and I feel like I need to surf it at 70 per cent. I’d almost rather get a bad wave and try and surf it 150 per cent. I’m really excited for the next round. I’ve never beat Kelly and it’ll be a fun challenge."
John John Florence will face Australian Julian Wilson after victory over Keanu Asing. Wilson meanwhile beat Brett Simpson.
Men's round of 16 results:
Heat 1: Filipe Toledo (BRA) 15.90 def. Tim Reyes (USA) 8.66
Heat 2: Miguel Pupo (BRA) 13.07 def. Kai Otton (AUS) 8.70
Heat 3: Kelly Slater (USA) 12.50 def. Jesse Mendes (BRA) 11.37
Heat 4: Dane Reynolds (USA) 16.90 def. Nathaniel Curran (USA) 16.70
Heat 5: Gabriel Medina (BRA) 15.90 def. Granger Larsen (HAW) 9.93
Heat 6: Adriano de Souza (BRA) 15.74 def. Nat Young (USA) 11.40
Heat 7: John John Florence (HAW) 16.70 def. Keanu Asing (HAW) 14.10
Heat 8: Julian Wilson (USA) 14.93 def. Brett Simpson (USA) 14.00