picture of Ronaldo Junior

Ronaldo Souza Junior is a jiu-jitsu black belt representing Atos. He is a gi and no-gi IBJJF Pan champion. Nicknamed "The Human Highlight Reel," Ronaldo is known for his explosive and fan-friendly jiu-jitsu characterized by dynamic guard passing. 

Atos Cleans Up At No-Gi Pans

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Atos Cleans Up At No-Gi Pans With Five Black Belt Champs

Nov 25, 2020

Atos took secured its position as the top team at the IBJJF 2020 No-Gi Pan Championships with FIVE black belt champs:

  • Kaynan Duarte (super-heavyweight champion, close out absolute with Hulk)
  • Lucas 'Hulk' Barbosa (heavyweight champion)
  • Lucas Pinheiro (light-featherweight champion)
  • Rafaela Guedes (female absolute champion)
  • Ronaldo Junior (close out middleweight with Jonnatas Gracie)