Rocky Mountain Self Defense and Fitness

Krav Maga, CrossFit, Jiu Jitsu/MMA, and more in Castle Rock, Colorado.

Rocky Mountain Self Defense and Fitness is a family-run gym located in Castle Rock, Co. We offer CrossFit Classes for Kids And Adults. Krav Maga – Martial Arts for all ages. MMA, Cardio Kickboxing, Strength Training, Personal & Small Team Classes & Yoga. 


Request Info Or Book A Trial Class→

√ Friendly, Helpful & Certified  Coaches

√ Small Classes & Amazing Community

√ 14 Day Free Trial*

 *excludes kids school breaks, other limitations may apply


 I have only been a member for a short time but man if I am not hooked on this place! John is a great instructor and he is the co-owner along with Jenny (nothing better than seeing a dedicated small business owner!!). He genuinely cares about the well being of his students…~Deb B. Castle Rock


Two years ago I was looking for a way to get into shape when I stumbled upon Rocky Mountain Self Defense and Fitness. At the time I weighed over 200lbs and was very out of shape. Working with the owner and his staff I have cleaned up my diet, increased my endurance and strength, and lost over 30lbs that I have been able to keep off… ~Josh Castle Rock 


This gym is a gem! I came with specific goals in mind and John and Jenny both help me to achieve them. The workouts are addicting, I drive over 30 minutes to get there. I look forward to coming here and get withdrawals when I travel. The gym is family friendly. I don’t feel like I’m just a source of income here. ~ Stephanie H. Elizabeth, Co


Your Name (required)

Your Email (required)

Your Telephone # (required)


Your Interests

Your Message




































“My son was acting up in class, and I was getting notes home every day for his behavior.  After only a couple of weeks in Rocky Mountain Krav Maga, he is doing great in school, and I no longer get any notes home  – and the best part is he loves going!

Thanks John! ~ Emily, Castle Rock



CrossFit Workout Of The Day (WOD)

New General Manager Pam Comstock