Boulder Shotokan Karate, previously called JKA of Boulder, provides traditional Japanese Karate-do instruction and training in Shotokan karate. We have been a part of the YMCA for 44 years and counting! In the course of training, we seek to develop the following attributes:

  • Self-Confidence & Self-Esteem
  • Safety & Security
  • Fitness & Health
  • Discipline & Perseverance
  • Alertness & Concentration
  • Respect & Humility
  • Combined into one neat package!

    New students start at the beginning of each month.

    Forty-four-year program at the YMCA!

    We build character!

    Affiliations: International Shotokan Karate Federation (ISKF), Mountain States Region

    Facility Address: Arapahoe YMCA, 2800 Dagny Way, Lafayette, CO 80026
    phone: 303-442-2778, e-mail:

    Instructor: Mr. Bruce D. Green, 8th-degree black belt, graduate of the well-regarded Japan Karate Association (JKA) Instructor Training Program (administered by the Japan Ministry of Education). He is also a certified instructor, examiner, and judge (A class). Sensei Green is blessed with several other high-ranked black belts as assistant instructors (CJ Herman, 5th dan; Tom Haapala, 3rd dan; Chad Callaghan, 3rd dan).


    We are a group dedicated to upholding traditional Japanese karate and to the ideals of the International Shotokan Karate Federation.

    "One of the most striking features of karate is that it may be engaged in by anybody, young or old, strong or weak, male or female."

    "Students of any art, clearly including Karate-do, must never forget the cultivation of the mind and the body."

    Master Gichin Funakoshi