Karate & Martial Arts Classes for Kids and Adults in Windsor, CO

Build confidence, discipline, focus and practical self-defense at our family-friendly, Three time award-winning Colorado Karate Association (CKA) School of the Year karate dojo! Beginner classes start at age 3. Classes of all skill levels are available for kids teens and adults.

Serving students in Northern Colorado, including Windsor, Greeley, Severance, Timnath, Evans, Eaton, Milliken, and Fort Collins, CO.

We offer traditional karate, kickboxing, women's self-defense, sparring, tournament competitions and competition team classes for all skill levels.

Come join us as with a $49 trial offer to see if we are the right spot for you and your child on a rewarding karate journey. And when you do enroll, we don't do contracts, so there is no long-term commitment.

Karate & Martial Arts Classes for Kids and Adults in Windsor, CO '23–25 CKA 5A School of the Year • 126 State Champs Since '16 • Beginners Welcome

Four Kaizen Tournament Competitors Earned Spots to Represent Team USA at WKC Worlds in Spain in October, 2026.
The latest round of belt advancements in Black Belt Club, including Everett, who earned his junior black belt.

Welcome to Kaizen Karate & Self-Defense in Windsor, Colorado! For the third straight year (2023, 2024 & 2025), we are honored to have earned the Colorado Karate Association (CKA) 5A School of the Year! 

We offer karate classes for preschool-aged kids (3-4 years old), kickboxing classes for teens and up, women's self-defense classes, birthday parties, and parents night out.

We are also proud members of the Colorado Karate Association (CKA). Once our students reach Black Belt Club level, they have the opportunity to compete in multiple tournaments throughout the year. Competition can be in kata — traditional, musical, creative, and weapons — as well as sparring, both point and clash.

Since 2016, Kaizen Karate & Self-Defense has produced 126 CKA State Champions and more than 240 State Finalists (2nd or 3rd in their respective divisions) in sparring and kata with our competition team.

Choosing the right dojo is an important first step on the journey to black belt. That’s why we offer a straightforward $49 trial: four classes, no contract, and no obligation. We’re confident Kaizen Karate & Self-Defense will be a great fit for you or your family.

· What Training at Kaizen Karate Includes ·

basics keira

Basics

Noah doing his kata

KATA

Sparring

SPARRING

self-defense

Self-Defense

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A lifetime of training to share those teachings

Shihan Matt Schildt, the owner of Kaizen Karate & Self-Defense, has been a martial artist for 28 years.

Before opening Kaizen Karate & Self-Defense in 2014, Schildt trained in karate and Tae Kwon Do from 1984-91, then resumed his karate training in 2005 under Master Charles Orchard at Total Ryu Martial Arts. Schildt  taught for three years under Orchard in the Total Ryu children's karate class, and also trained for five years in Orchard's Adrenalized Confrontation Training (ACT), which is regarded as one of the best practical self-defense programs available, and has been taught to police and military personnel.

In 2016, two years after opening his own school, Schildt joined the Colorado Karate Association (CKA). He began training under Grandmaster Jerry Davis, Grandmaster Ben Ramsey, and Master Todd Jonas. In March 2021, Grandmaster Davis (9th Dan) promoted Schildt to 5th Degree Black Belt and Shihan (Master Instructor).

Schildt was elected to the CKA Board of Directors in Oct. 2023, and Grandmaster Davis promoted Shihan Matt to 6th Degree Black Belt in July 2024.