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Looking for a safe, fun, and rewarding Brazilian jiu jitsu experience for both you and your family? Come train with Amaury Bitetti in Allen, TX, a world-renowned champion and true legend of the sport. Although he’s coached many top MMA fighters in the UFC, Amaury welcomes students of all ages and skill levels—from complete beginners to passionate hobbyists.
Our classes provide a supportive environment where kids can develop confidence, discipline, and respect, all while staying active and making new friends. Adults, too, will find an inclusive community focused on fitness, self-defense, and personal growth. With a history of multiple world championship titles and decades of teaching expertise, Amaury’s approach is as approachable and family-friendly as it is effective.
Amaury Bitetti is a Brazilian Jiu Jitsu black belt and a legendary figure in the sport. He also holds black belts in Judo and Muay Thai. Considered one of the greatest athletes of the 1990s by Gracie Magazine, Amaury was a dominant force in competition, becoming a two-time IBJJF World Champion and a six-time Brazilian Jiu Jitsu Champion.
In addition to his success in Jiu Jitsu, Amaury competed in Vale Tudo and MMA, facing top-level opponents in events such as the UFC and Abu Dhabi Submission Wrestling. He has also trained and coached some of the biggest names in combat sports, including Rodrigo “Minotauro” Nogueira, Anderson Silva, and Vitor Belfort.
As a promoter, Amaury founded Bitetti Combat, one of Brazil’s premier MMA events, which has featured world-class fighters and helped shape the sport’s growth.
Amaury Bitetti is a Brazilian former mixed martial arts fighter and promoter holding the rank of 7th degree black and red coral belt in Brazilian jiu jitsu. Considered by many as one of the best BJJ competitors of all time, Bitetti is a two-time world jiu jitsu champion in open weight, the first-ever to win the category, and a two-time Brazilian national champion. After competing in Vale Tudo / MMA Bitetti founded the MMA fight organization Bitetti Combate.
Fun fact: Amaury loves traveling and sharing his knowledge through seminars worldwide, teaching students across the Americas, Europe, Japan and right here in Allen TX, Plano TX, and McKinney, TX.
7th Degree Red and Black Belt
Certified IBJJF
Judo Black Belt
Gilson Nunes is a 3rd-degree Brazilian Jiu-Jitsu black belt with over 20 years of experience in competition and teaching. Born and raised in Fortaleza, Ceará, Brazil, Gilson began his Jiu-Jitsu journey at the age of 12 under the guidance of Paulo ‘Maninho’ Ivano. Even as a young trainee, his eagerness to spar with adults earned him the nickname Nenem, meaning “Baby” in Brazilian jargon. His dedication and talent led him to earn his black belt in 2010 at the remarkably young age of 20.
Gilson’s Jiu-Jitsu lineage traces back through esteemed practitioners: Mitsuyo Maeda > Carlos Gracie > Helio Gracie > Rolls Gracie > Romero Cavalcanti > Roberto Traven > Carlos David > Ronaldo Cruz > Gilson Nunes.
Over 40 IBJJF Open Championships
Beyond his competitive accomplishments, Gilson is a passionate and dedicated instructor. He has guided 10 students from white belt to black belt, demonstrating his commitment to nurturing the next generation of Jiu-Jitsu practitioners. Gilson’s teaching philosophy centers on consistency, discipline, and the belief that with hard work and dedication, anyone can progress in Jiu-Jitsu.
David Akina is a Certified IBJJF Brazilian Jiu Jitsu black belt with over 20 years of experience in competition and teaching. Born and raised in Hawaii, David began his Jiu Jitsu journey at BJ Penn’s school in Hilo, HI and Relson Gracie’s Jiu Jitsu in Honolulu. Dallas became his second home and began his training with Keiser Girao and Checkmat Dallas. His passion for Jiu Jitsu led him to competition, teaching and studying this art wholeheartedly. Competition has taught David a lot about life like humiliation, being humble, learning under extreme pressure, self defense, focus, managing adrenaline, how to win and lose. David has had the privilege to learn Jiu Jitsu from some of the best instructors in the world. His goal is to continue to grow in this art and to share the gift of Jiu Jitsu with people who are passionate about learning the art of Jiu Jitsu
Fun fact: David loves spending time with his daughters doing fun things in Allen, TX.
Tony Gonzalez began his martial arts journey in 2010 with boxing, building a strong foundation in striking as a 6th grader. By 10th grade, he transitioned into karate, refining his discipline, precision, and traditional martial arts skills. By his senior year of high school, Tony expanded into kickboxing and Brazilian Jiu-Jitsu, developing a versatile style that blends striking, grappling, and self-defense.
Through years of dedication, Tony has earned a 2nd-degree black belt in Karate and a blue belt in Brazilian Jiu-Jitsu. He continues to train as an active fighter, constantly evolving and sharpening his craft to deliver the highest level of instruction to his students.
Tony Gonzalez has trained under some of the most respected names in martial arts, including:
Garland Police Department Boxing Gym
Freddie Roach – World-renowned boxing coach
Guy Mezger – Kickboxing champion & MMA pioneer
David Douglas – Boxing coach
Steve Shelby – Karate instructor
Trevor Olson – Karate instructor
Juan “Superman” Jimenez – Boxing coach
As an instructor at Gym Jitsu in Allen, TX, Tony Gonzalez is passionate about helping students of all ages build confidence, discipline, fitness, and practical self-defense skills. With his well-rounded background in boxing, karate, kickboxing, and jiu-jitsu, Tony provides students with a complete martial arts education—whether their goals are competition, personal growth, or physical fitness.
Bianca Bitetti brings over 30 years of experience in sports, fitness, and athlete development to Gym Jitsu. She holds a degree in Sports Science and a postgraduate specialization in Exercise Physiology, giving her a strong academic foundation to back up her practical coaching expertise.
Bianca is also a certified CrossFit coach, specializing in:
Functional training
Athlete development
Functional kickboxing
Strength & conditioning
Fitness for health & longevity
Since 2019, Bianca has worked extensively in the United States, including coaching roles at X3 Sports in Atlanta as well as Grapple House and Elite Performance in Michigan. Her international background and hands-on experience give her a unique approach to training both recreational and competitive athletes.
Passionate about sports and health, Bianca is dedicated to helping people improve their quality of life through training, movement, and discipline. Whether she is coaching beginners, kids, or competitive athletes, Bianca uses her knowledge to create programs that build strength, mobility, confidence, and resilience—helping every student unlock their full potential.
At Gym Jitsu in Allen, TX, Bianca combines her expertise in fitness, functional training, and martial arts to inspire students to live an active, healthy lifestyle.
Meet our highly skilled and dedicated instructors, who bring years of experience and a passion for teaching Brazilian Jiu-Jitsu to practitioners of all levels.
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