Business Details
Your Premier Brazilian Jiu-Jitsu School in Fullerton, CA
At Ethos Jiu-Jitsu, we are dedicated to empowering individuals through the transformative art of Brazilian Jiu-Jitsu. Our mission centers on building character, confidence, and resilience in students of all ages, from children as young as five to advanced adult practitioners. With structured classes offered five days a week, we provide a supportive environment where physical fitness, self-defense skills, and personal growth converge. Founded by experienced instructors Ron Mukai and Jerardo Linares, our team brings decades of competitive and teaching expertise to every session. We prioritize accessibility, offering free trial classes to introduce newcomers to the discipline and camaraderie of Jiu-Jitsu.Our programs emphasize practical techniques for real-world scenarios, including anti-bullying strategies and self-defense. Located in Fullerton, California, we serve communities across North Orange County, fostering a family-friendly atmosphere where students develop not only physical prowess but also mental fortitude. Our instructors, including international competitors and black belts, are committed to nurturing champions in both Jiu-Jitsu and life. Through daily training and a focus on core values like humility and perseverance, we help individuals overcome physical limitations and thrive in all aspects of life.
Services
Kids Jiu-Jitsu
Adult Jiu-Jitsu
Self-Defense Programs
Anti-Bullying Training
Free Trial Classes
Highlights and features
- We offer family-friendly Jiu-Jitsu programs for ages 5-100.
- Our instructors include international competitors and black belts.
- Free trial classes available for all new students.
- Structured curriculum for beginners to advanced practitioners.
- Focus on real-world self-defense and anti-bullying techniques.
Services
Kids Jiu-Jitsu
Structured classes for children aged 5-16 focus on character development, discipline, and foundational Jiu-Jitsu techniques. Our program builds confidence through physical activity while teaching practical self-defense skills in a safe, engaging environment. Classes are tailored to different age groups and skill levels.
Adult Jiu-Jitsu
Beginner to advanced classes for adults emphasize technical proficiency, physical conditioning, and real-world self-defense applications. Our curriculum balances fundamental skills with advanced strategies, fostering personal growth and resilience. Students train in a supportive community that values perseverance and mutual respect.
Self-Defense Programs
Specialized programs teach practical techniques for de-escalating conflicts and protecting oneself in dangerous situations. Instruction focuses on leverage-based methods to overcome larger opponents, situational awareness, and mental preparedness for real-life scenarios.
Anti-Bullying Training
Curriculum designed to empower children and teens with confidence, assertiveness, and physical techniques to address bullying. Classes combine verbal communication strategies with non-violent physical responses to build emotional resilience and self-advocacy skills.
Free Trial Classes
New students can experience our structured Jiu-Jitsu classes at no cost. These sessions introduce fundamental techniques, class structure, and our community values, allowing potential members to assess if our program aligns with their goals.
People
Ron Mukai
Founder/Instructor
Second-degree black belt with over 20 years of experience. Competes nationally and teaches family-focused Jiu-Jitsu. Co-founded East LA Jiu-Jitsu non-profit. Combines Christian values with martial arts principles.
Jerardo Linares
Founder/Instructor
Second-degree black belt with 20+ years of experience. Former collegiate athlete and real estate broker. Emphasizes character development through Jiu-Jitsu. Active competitor and community-focused instructor.
Rodnei Barbosa
Head Instructor
Brazilian black belt since 2015 with international competition success. Former coach for Qatar National Service. Specializes in teaching kids and adults. Trains in both Gi and No-Gi formats.
Wendy Mukai
Instructor
IBJJF Master Worlds champion and black belt. Co-founded East LA Jiu-Jitsu non-profit. Focuses on family training and overcoming physical challenges through technical mastery and perseverance.
Filipe Pimentel
Instructor
Second-degree black belt and international referee. Competed in IBJJF and AJP tournaments. Combines engineering discipline with Jiu-Jitsu instruction. Teaches both competitive and self-defense applications.
Questions
What age groups do you accept?
We offer classes for children aged 5-16 and adults of all skill levels.
Do you offer free trial classes?
Yes, we provide a free trial class for all new students.
What should I wear for my first class?
Wear comfortable athletic clothing; no special gear required initially.
Are your instructors certified?
All instructors are black belts with competitive experience and formal certifications.
Do you teach self-defense techniques?
Yes, our curriculum includes practical self-defense and anti-bullying strategies.
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