My name is Professor Leandro Massaro. I am a fitness coach and Brazilian Jiu-Jitsu black belt under the legendary Wellington “Megaton” Dias. I hold a third-degree black belt certified by the International Brazilian Jiu-Jitsu Federation (IBJJF) and have dedicated my life to the study, practice, and competition of Brazilian Jiu-Jitsu since 2000.
Throughout my 26 years in the art, I have competed in some of the sport’s most prestigious tournaments, earning medals and gaining valuable experience on the international stage. My competitive journey has taken me to events such as the World Championship, American Nationals, Pan-American Championship, European Championship, Arizona State Championship, and Asian Championship.
Brazilian Jiu-Jitsu has always been much more than a martial art to me. It has played a fundamental role in shaping the person I am today, pushing me beyond my comfort zone and helping me become healthier, happier, and more confident.
Through years of training, teaching, and competing, I have learned that success is built on hard work, dedication, honesty, and integrity. These are the same values I strive to bring to every class, helping students develop not only their technical abilities but also the confidence, discipline, and resilience they can carry into their everyday lives.
Over the years, I have built friendships that will last a lifetime and had the privilege of training, working, and competing alongside some of the most talented practitioners in Brazilian Jiu-Jitsu. Today, I am passionate about sharing the knowledge and experience I have gained throughout my journey and helping others discover the many benefits of this incredible martial art.
My dedication to Brazilian Jiu-Jitsu has led to several notable accomplishments throughout my competitive career, including:
Whether you are a complete beginner, an experienced practitioner, or someone looking to improve your fitness, build confidence, and learn practical self-defense, Brazilian Jiu-Jitsu offers something valuable for everyone.
My goal is to provide an environment where students can learn, challenge themselves, and grow both on and off the mats. I believe that the lessons learned through Jiu-Jitsu extend far beyond training, creating opportunities for personal growth, lasting friendships, and a healthier lifestyle.
If you are looking for Gracie Jiu-Jitsu in St. Petersburg, Florida, I invite you to join my Brazilian Jiu-Jitsu classes and experience firsthand the transformative power of this martial art.
Your journey starts on the mats.

Helio Gracie => Royler Gracie => Wellington “Megaton” Dias => Professor Leandro Massaro
We are proud members of the Gracie Humaita Competition Team and the Megaton Jiu Jitsu Competition Team, offering top-notch Brazilian Jiu-Jitsu classes right here in Gracie Jiu-Jitsu St Petersburg, FL.
Helio Gracie, a 9th degree red belt, is undeniably one of the most significant figures in the history of Brazilian Jiu-Jitsu. As one of the pioneering representatives of Gracie Jiu-Jitsu in the 1930s and 1940s, he also served as the father and mentor to many fighters who brought his family's martial arts legacy into the mainstream, especially in the early 1990s. Renowned competitors like Royler, Rickson, and Royce Gracie emerged from his lineage, which is among the strongest in Jiu-Jitsu history. Helio Gracie is celebrated as one of the founders of the Brazilian grappling art.

Royler Gracie, the son of Gracie Jiu-Jitsu Grandmaster Helio Gracie, is a living legend in Brazilian Jiu-Jitsu and submission wrestling. He made history as the first 'King of BJJ’s Featherweight Division,' setting a remarkable record of world championships during his career. In addition to his notable achievements in Brazilian Jiu-Jitsu, Royler also competed in mixed martial arts (MMA) before concluding his fighting career in 2006. As a coach, he has significantly impacted the sport, leading the Gracie Humaita Academy in Rio de Janeiro where he developed prominent fighters such as 'Megaton' Dias, Alexandre Ribeiro, Omar Salum, and Renato Barreto. In 2010, Royler relocated to San Diego, California (USA) and established his own academy to teach Brazilian Jiu-Jitsu classes. This move coincided with his continued dedication to the art, now available through Gracie Jiu-Jitsu in St Petersburg, under esteemed instructors like Professor Leandro Massaro.
Lineage: Mitsuyo Maeda > Carlos Gracie > Helio Gracie > Royler Gracie
Main Achievements:
World Champion (1996, 1997, 1998, 1999)
Pan American Champion (1997, 1999)
ADCC Champion (1999, 2000, 2001)

Professor Megaton, known formally as Wellington Dias, boasts over 30 years of experience in Brazilian Jiu-Jitsu, making him one of the most renowned and respected BJJ instructors globally. His exceptional skills have made him a sought-after figure in Brazilian Jiu-Jitsu classes, particularly at Gracie Jiu-Jitsu St Petersburg, where he shares his extensive knowledge.
As a Judo and BJJ black belt, Professor Megaton has maintained a competitive drive that has kept him at the top of his game for two decades. A representative of the Gracie Humaita team, he is notable for being the only Jiu-Jitsu fighter to have competed in all first 16 editions of the World BJJ Championships as a black belt, from 1996 to 2018, achieving podium finishes on four occasions. Additionally, he is the proud father of Brazilian Jiu-Jitsu star Mackenzie Dern.


Get direct guidance and coaching from Professor Leandro Massaro, a certified Brazilian Jiu-Jitsu black belt. Learn from this dedicated and skilled instructor who has over 25 years of experience in teaching and competing in Brazilian Jiu-Jitsu classes, helping students achieve their goals. We will work closely with you to keep you motivate
Get direct guidance and coaching from Professor Leandro Massaro, a certified Brazilian Jiu-Jitsu black belt. Learn from this dedicated and skilled instructor who has over 25 years of experience in teaching and competing in Brazilian Jiu-Jitsu classes, helping students achieve their goals. We will work closely with you to keep you motivated and on track to succeed. Join the #1 Gracie Jiu-Jitsu academy in St. Petersburg today!
Gracie Humaita is one of the most traditional Brazilian Jiu-Jitsu academies, deeply connected to the founders of the art, and a powerhouse in the competitive BJJ scene. To truly understand the origins of Gracie Humaita, we must go back to 1925. Today, it continues to offer outstanding Brazilian Jiu-Jitsu classes in St. Petersburg, led by the esteemed Professor Leandro Massaro.
We understand that adapting to new habits can be challenging and often leads to setbacks. Our goal is to help you see Martial Arts in a new light, with Brazilian Jiu-Jitsu classes that become an integral part of your identity and lifestyle. Under the guidance of Professor Leandro Massaro, we firmly believe that by practicing healthy habit
We understand that adapting to new habits can be challenging and often leads to setbacks. Our goal is to help you see Martial Arts in a new light, with Brazilian Jiu-Jitsu classes that become an integral part of your identity and lifestyle. Under the guidance of Professor Leandro Massaro, we firmly believe that by practicing healthy habits through Gracie Jiu-Jitsu in St. Petersburg, you can achieve a truly healthy lifestyle.
Practice Gracie Jiu-Jitsu in St. Petersburg, one of the most effective forms of self-defense in the world! Join a fantastic team and program that offers comprehensive Brazilian Jiu-Jitsu classes. Experience the camaraderie of dedicated students and learn directly from Professor Leandro Massaro. Meet new friends in St. Petersburg and have a great time!
Brazilian Jiu-Jitsu classes deliver a full-body cardiovascular workout unlike anything else you've tried. With Gracie Jiu-Jitsu St Petersburg, you can lose weight and increase your overall fitness levels while gaining confidence and self-discipline under the guidance of Professor Leandro Massaro.
Gracie Jiu-Jitsu St Petersburg - FL
6798 Crosswinds Drive North, Suite E-104, St. Petersburg, Florida 33710, United States
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