680 Atchison Way Suite 300-400, Castle Rock, Colorado 80109

Engaging the Denver Metro Area in Brazilian Jiu Jitsu and Fitness

Helping People of All Ages in Castle Rock Get Fit and Have Fun

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Engaging the Denver Metro Area in Brazilian Jiu Jitsu and Fitness


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Kids Martial Arts and Fitness

Treat your child to the best Kids Martial Arts Classes in Castle Rock with our exciting Brazilian Jiu Jitsu program. We work with students of all ages and abilities, helping them build confidence, strength, and more!

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Brazilian Jiu Jitsu and Fitness

Through our renowned Brazilian Jiu-Jitsu system, we'll help you gain robust fitness and learn powerful self-defense skills. From competition to casual practice, we are your source for authentic Jiu-Jitsu training here in Castle Rock.

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Group Fitness

Get the same ongoing support, accountability, and high-quality training that our Personal Training program offers, but get it in a high-energy group setting! If you're nervous about beginning your fitness journey alone, our Group Training will allow you to step up to the plate alongside a team of new friends and meet your fitness goals head on!

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Preteen/Teen Jiu Jitsu and Fitness

Jiu Jitsu is one of the fastest-growing forms of martial arts, and our Teen Jiu Jitsu classes offer your teen the most advanced training available in Castle Rock. In addition to preparing teens with high-level technique, we also help them grow skills which will serve them outside the gym.

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Private Martial Arts and Fitness Training

Get the most out of every session by enrolling in our Private Training. We offer one-on-one or two-on-one training sessions by appointment, which will allow you to create a personalized training routine with our instructors. Improve your Jiu Jitsu skills, build your fitness, lose weight... whatever your goals are, we'll help you achieve them.

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Will Holzapfel

Professor Gigi is an excellent coach, and provides top level instruction that will benefit both the beginner and the advanced practitioner. His style and passion he has for his students sets him apart...

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Jarrod Gibson

My kids and myself have been training at this awesome facility and love it!! No matter if you are a beginner or advanced, Mike and Gigi work with you to achieve the best techniques. Fun family style a...

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Carrie Leonardini

I started training in February with this group of amazing men and women. It’s been a place where I have learned , grown and felt like family. The knowledge and communication of professor Gui Gui...

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Timothy Gillette

I've trained with both Mike and GuiGui for the last 6 months. Their gym is very welcoming and the training is great. GuiGui brings an energy that keeps classes fun and pushes you to continually improv...

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Sam Park

From the moment I first walked in, I knew this place was for me. Mike and Gigi were incredibly friendly and welcoming, as were the other students. Everyone greeted me with a genuine smile and were so ...

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Luke Rassmussen

I have trained with Mike and Gigi for years. Great people, excellent training and family friendly atmosphere. Highly recommended....

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Bom Jitsu Brings Brazilian Jiu Jitsu and Fitness to Castle Rock

Bom means GOOD in Brazilian Portuguese. At Bom Jitsu our GOAL is to engage the community of Castle Rock and the Denver Metro area with a good to great approach to jiu jitsu training. As a GF Team Affiliate our approach builds on the foundation laid by GF Team and incorporates not only physical growth but helps build the mental, emotional and spiritual pillars of human growth.

As a GF Team affiliate you will have access to world champion jiu jitsu practitioners and access to affiliate academies around the world.

Bom Jitsu a veteran-owned and operated business, providing gym memberships to individuals and families to facilitate fitness and well-being to the community of Castle Rock and the surrounding area. Fitness will be accomplished through multiple fitness disciplines, including but not limited to weight training, functional movements, running, tension bands and other fitness disciplines for improved health, weight loss and increased physical performance.

In addition, Bom Jitsu is an authorized distributor and acts as a retail supplier for Origin Maine fitness supplements, Jocko Products Discipline Go Energy Drinks, Monkey Tape sports tape and other fitness related apparel and accessories.

Whether you've practiced before or you're completely new to Brazilian Jiu Jitsu, we have a class for you! Get started in our Jiu Jitsu 101 class and get a full instructional course with the foundational tools you need, dive into our Fundamentals class to strengthen your BJJ core, or immerse yourself in the full curriculum of our Gi or No-Gi classes - whatever class you choose, you can't go wrong! Plus, we offer Kids Jiu Jitsu classes and Teen Jiu Jitsu classes to get the whole family involved and keep everyone practicing with someone their own size and level of skill. You learn best when your opponent is as good as you are!

Simply fill out the short form on your screen to learn more!

Why Bom Jitsu?

We're Family Friendly, Detail Oriented, Engaged in Our Community, Offer a Team Environment, and Veteran Owned & Operated. Plus, You Get to Experience All The Great Benefits of Training in Brazilian Jiu Jitsu!

  • Self-Confidence


    By training in martial arts, you'll develop unwavering confidence and heightened self-esteem. Brazilian Jiu Jitsu will give you the opportunity to live fearlessly, here in Castle Rock or wherever life takes you.

  • Discipline


    Mastering each new technique and journeying from white belt to black belt requires perseverance and self-control, and the lessons you learn with us at Bom Jitsu will make a difference in all aspects of life. 

  • Self-Defense


    The martial arts will prepare you to defend yourself in an emergency situation, both by giving you the fitness and techniques you'll need, but also by expanding your ability to recognize a dangerous situation.

  • Community


    When you train with us here at Bom Jitsu, you're getting more than just martial arts lessons. You're connecting with our community and meeting lifelong friends and mentors. 

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