# Ronaldo Junior

> Black Belt | Brazil

## Overview

**Name:** Ronaldo Junior

**Belt Rank:** Black Belt

**Nationality:** Brazil

**Gender:** Male

**Date of Birth:** August 28, 1996 (age 30)


## Bio

Brazilian black belt from Teresópolis, promoted by André Galvão in 2019, who competes for Atos out of San Diego. 2023 IBJJF No-Gi World champion. Won the inaugural UFC BJJ middleweight title by unanimous decision over William Tackett at UFC BJJ 4.
## Gym Affiliations

- **Atos Jiu Jitsu HQ** (San Diego, United States) — Student
## Links

- Instagram: https://www.instagram.com/ronaldojuniorbjj/

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**Last Updated:** October 01, 2026

**Data Source:** bjj.space (https://bjj.space/people/ronaldo-junior)