• Give your child the gift of confidence, leadership, respect, focus & discipline with our Kids Martial Arts classes. 

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  • Our Small Samurai Class (for children ages 3-5) introduces the children to karate basics in a fun environment.

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  • Our Adult Karate and Self-Defense class blends the fantastic benefits of traditional Japanese karate with the self-protection skills needed for the street.

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  • Get a great workout and learn self-defense with our kickboxing classes!

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  • Check out our awesome karate class trial offer — get a T-Shirt & 4 Classes for $49! Register on the home page of our website!


      Welcome to Kaizen Karate & Self-Defense in Windsor, Colorado! We offer Karate Classes for children ages 3 and up, Kickboxing Classes for teens and up, Women's Self-Defense Classes and private lessons for Karate and self-defense -- including private group self-defense classes and company team-building classes. We specialize in self-protection for adults and children. Our traditional Japanese karate curriculum offers your child many fantastic benefits, including discipline, focus, and self-confidence. REGISTER BELOW FOR OUR AWESOME KARATE OR KICKBOXING TRIAL OFFERS!

      Register here for your Karate Trial: Get a T-Shirt and four classes for $49! You'll be taken to PayPal's secure site to complete your registration. 

      Trial Offer

      Upon registering, within 24 hours we'll email you a confirmation where you'll select which classes (Small Samurai, Kids Class, or Adult Class) you'll be attending for your trial and your T-Shirt size.You can start right your trial right away, or use it later! Please note, however, once you start your trial, you have 30 days to attend your four classes. Come once a week for four weeks, or twice a week for two weeks, up to you! Questions? Call us at 970-217-0501 or email at novictimpledge@gmail.com!

      Register Here for your Kickboxing Trial: Get a pair of gloves and two classes for $19.99! You'll be taken to PayPal's secure site to complete your registration. We'll email you a confirmation within 24 hours, and you can start your classes at any time! 

      Trial Offer - 2 Classes

      All sales are final. Kaizen Karate & Self-Defense does not give credit and/or refunds for classes missed due to holiday, vacation, illness, weather, etc. Payment for all classes (including, but not limited to, karate & self-defense classes, women's self-defense classes, private lessons, summer camp classes) is required prior to attending the class.  Thank you for your business!