ATOS Brazilian Jiu-Jitsu Temecula
About Us
Here you can learn more about us at ATOS!
Founded in the summer of 2023, Atos Jiu-Jitsu Temecula began its journey under the guidance of world-renowned Brazilian Jiu-Jitsu athlete Ronaldo Junior. His vision was simple — to bring world-class Jiu-Jitsu instruction to the Temecula Valley and build a community rooted in excellence, discipline, and personal growth.
Finding a Jiu-Jitsu academy that prioritizes high-level instruction, technical knowledge, and a positive, competitive culture isn’t always easy. That’s why we set out to raise the bar. Atos Temecula is more than a training facility — we’re a movement within our local community, dedicated to helping students of all ages unlock their potential and become stronger, more confident individuals.
Through our kids and adult programs, we’re committed to shaping future leaders on and off the mats. As we continue to grow, our mission remains clear: to offer elite Brazilian Jiu-Jitsu education while empowering people to lead, inspire, and give back to their communities.
ATOS Brazilian Jiu-Jitsu Temecula
About Us: Our Instructors
Here ATOS Brazilian Jiu-Jitsu Temecula, our staff is the secret to our student success. Each instructor has a rich background in Jiu-Jitsu and is eager to train the next generation of martial artists. Meet the team below!
Co-Founder & Head Professor, Atos Jiu-Jitsu Temecula
Ronaldo Junior
Ronaldo Junior is a distinguished figure in the realm of Brazilian Jiu-Jitsu (BJJ), renowned for his exceptional skills, leadership, and a list of accomplishments that have solidified his status in the BJJ community. As the co-founder and head professor of Atos Jiu-Jitsu Temecula, he has played a pivotal role in shaping the journey of countless BJJ practitioners.
A Black Belt Under the Guidance of Andre Galvao
Ronaldo Junior holds the prestigious rank of 1st-degree Black Belt in Brazilian Jiu-Jitsu, a testament to his dedication and commitment to mastering the art. His journey to Black Belt excellence was guided by none other than the world-renowned BJJ competitor, Andre Galvao, underscoring the depth of his technical knowledge.
A Champion on the World Stage
Ronaldo’s list of accolades reads like a testament to his mastery of BJJ. He is a multiple-time IBJJF World Champion, showcasing his elite skills and determination on the grandest stage of competition. In addition to his World Championship titles, Ronaldo has triumphed as a multiple PAN American Champion and multiple Brazilian National Champion, solidifying his reputation as a true force in the sport.
The Human Highlight Reel
Ronaldo Junior has garnered the nickname “The Human Highlight Reel” due to his electrifying and aggressive style on the mat. His matches are often a spectacle of dynamic techniques, making him a fan favorite and a source of inspiration to fellow practitioners.
Beyond the Mat: Surfing and Travel Enthusiast
While BJJ remains at the core of his life, Ronaldo finds solace and adventure outside the academy. He is an avid surfer, riding the waves and finding tranquility in the ocean. Ronaldo also has a passion for travel, exploring the world and embracing new experiences with the same zeal that fuels his BJJ journey.
Ronaldo Junior’s dedication to Brazilian Jiu-Jitsu, coupled with his remarkable competitive achievements and captivating style, has earned him a well-deserved place among the sport’s elite. As co-founder and head professor of Atos Jiu-Jitsu Temecula, Ronaldo continues to inspire and guide the next generation of BJJ enthusiasts on their path to excellence.
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Coach
Fred Leary
Coach Fred Leary is a distinguished presence in the No-Gi Grappling and ADCC community, known for both his elite-level coaching and impressive personal accomplishments on the mats. A 2nd Degree Black Belt under 6X ADCC World Champion André Galvão, Coach Fred spent 12 years as the No-Gi and Wrestling Coach at Atos HQ, where he helped shape the careers of some of the sport’s top competitors.
He also served as André Galvão’s personal wrestling coach, contributing to one of the most legendary runs in ADCC history. With a reputation as one of the winningest coaches in ADCC, Coach Fred’s athletes have consistently achieved world titles and podium finishes under his guidance.
A fierce competitor in his own right, Coach Fred is a 4X All-American Wrestler, 2X Wrestling National Champion, and 3X IBJJF No-Gi World Champion.
Now, as the head of our No-Gi Adults and Kids Competition Teams at Atos Temecula, Coach Fred is bringing his knowledge, passion, and leadership to build champions both on and off the mats. His commitment to developing well-rounded athletes and future leaders makes him an invaluable part of our team.
When he’s not on the mats, you’ll likely find Coach Fred relaxing at the beach or enjoying Filipino food — two of his favorite ways to recharge.
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Coach
Cassio Barbosa
Cassio Barbosa is a Black Belt under world-renowned Hall of Famer André Galvão and a vital member of the coaching staff at Atos Jiu-Jitsu Temecula. Known for his infectious enthusiasm, sharp attention to detail, and genuine love for Jiu-Jitsu, Cassio has earned a reputation as one of the most uplifting and dedicated instructors on the mats.
He kicks off each day by leading our Adults 6 AM Gi classes, setting a positive, hardworking tone that carries through the entire gym. Cassio also leads our Kids Gi Competition Team, where his ability to connect with young athletes and help them grow both as competitors and individuals truly shines.
His passion for Jiu-Jitsu is undeniable and incredibly endearing. When he’s not surfing on the weekends, you’ll likely find Cassio traveling across the country as a respected Jiu-Jitsu referee, officiating at major national tournaments. His commitment to the sport goes far beyond teaching — he lives and breathes Jiu-Jitsu every single day.
Coach Cassio’s energy, knowledge, and love for the art inspire everyone around him, making him an irreplaceable part of the Atos Temecula family.
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Don't Take Our Word For It:
I’ve trained at 2 other gyms before having Atos recommended to me by a friend. Instantly felt at home with smiling faces, introductions and a great positive energy. Besides the great people, the gym itself is huge with a top quality spring floor mat. It’s definitely made training easier on the body. The professor and coach’s are excellent as well. Super helpful and willing to take the extra time to give you specific details on why you need to do it that way and what will happen if you don’t. Highly recommended!!
Derrik K.
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Student
I have trained at three gyms in two different states. I can honestly say that Fight Sports Temecula is a great place. My entire family trains here. If you are looking for a positive vibe and friendly atmosphere to explore this art with, this gym is the spot.
Christopher P.
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Parent & Student
This is a really great Jiu-Jitsu school that’s in the best location! The academy is clean, spacious and with world class instruction of black and brown belts learning is fun and easy to understand. Schedule is very accommodating with multiple times and days of instruction from Jiu-Jitsu, no gi, women’s classes and kids. There’s something for everyone. I love seeing the progress of my children, and seeing their confidence, and focus really improve. If your looking for a place to train with great vibes this is the place!
Mariesol P.
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Parent & Student
We just moved to Temecula, and my son needed an outlet to burn off some energy at the same time make new friends and have actual interaction with other kids aside from school. We found Fight Sports Club Temecula and it is a blessing! My son got engaged right away with the help of the very skillful staff and friendly kids who trains regularly, he felt part of the group. Now my son is away from using gadgets at home, participating in physical activities, making new friends, and picking up new skills which he finds absolute fun! Not to mention he gets home and is exhausted he is ready to sleep and feels energetic when he wakes up in the morning! 5 Star review well deserved!
Darwyn B.
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Parent
This is a great Jiu-Jitsu gym with a friendly and chill vibe. It's great for beginners and experienced practitioners. Dex is a great owner that cares about it's members. Allison is an awesome teacher/athlete. It's a great combination so don't pass it up.
Joshua B.
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Student
For me as a beginner to BJJ, this is the perfect place to start and to continue to learn. Everyone is very nice and welcomes you in like family. It is a very positive learning environment and the instructors do a great job at teaching you the many things BJJ includes. The instructors are always willing to answer questions whenever you have them and always motivate you to do your best. With the many positives this place has combined, it makes you want to keep coming back for more. In regards to the facility, it is very nice and clean. Lots of seating for friends/family that want to watch how class goes.
Eric B.
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Student
ATOS Brazilian Jiu-Jitsu Temecula
History
In the summer of 2023, Atos Jiu Jitsu Temecula, under the guidance of internationally renowned Brazilian Jiu-Jitsu athletes Ronaldo Junior and Jhenifer Aquino, commenced its journey, aiming to provide world-class instruction to the Temecula Valley region.
The quest for a Jiu-Jitsu academy that places the utmost importance on quality instruction, knowledge, and competitive excellence can often be a formidable challenge. However, we are leading a transformative initiative within our local community, committed to elevating the standards of Jiu-Jitsu education. Our ongoing dedication involves actively contributing to our community by nurturing the potential of young individuals, empowering them to become leaders through the practice of Brazilian Jiu-Jitsu. As Atos Jiu Jitsu Temecula continues to prosper and extend its reach, our unwavering commitment to community engagement and the cultivation of future leaders through our BJJ classes remains resolute.
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