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  • Profile picture of Dirk Herfurth

    Dirk Herfurth wrote a new post

    • 3 years, 9 months ago
    Week 26 - Dirk Herfurth

    Throwback Thursday My karate journey started some 20 years ago at the beginning of the 2000s. At that time I was still studying Civil Engineering in Cottbus, Brandenburg Germany. My friend Gunnar asked me if I…

  • Profile picture of David Brezinski

    David Brezinski wrote a new post

    • 3 years, 9 months ago
    Week 25 - David Brezinski

    More miles on my journey… Had the opportunity to meet with some running friends in Portland to participate in the annual Hood to Coast 196 mile relay run. The relay starts at the base of Mt. Hood and winds its w…

  • Profile picture of David Brezinski

    David Brezinski wrote a new post

    • 3 years, 9 months ago
    Week 24 - David Brezinski

    Training in the alpine air! A few weeks ago, Dirk-san and I took a trip to my family cabin up at Huntington Lake. We departed from Sacramento after Thursday night sparring class, and arrived at the cabin after…

  • Profile picture of Dirk Herfurth

    Dirk Herfurth wrote a new post

    • 3 years, 9 months ago
    Week 25 - Dirk Herfurth

    Hello Zen Martial Arts family, Today I would like to address you on a personal matter. As you might know October is Breast Cancer awareness month. This type of cancer is the most common type of cancer with 290k new…

  • Profile picture of David Brezinski

    David Brezinski wrote a new post

    • 3 years, 10 months ago
    Week 23 - David Brezinski

    Another check on my bucket list. I know I have shared this with some of my friends in the dojo and I may have even posted about it earlier this year. My niece and her fiance’ asked me to marry them (to officiate t…

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OneHeart Challenge

The OneHeart Challenge is a year-long quest rooted in the principles of of Isshinryu Karate–the ‘One-Heart Way.’ While some will use the challenge as part of their next rank promotion, it is so much more than a black-belt test. This challenge embodies the harmonious fusion of mind, body, and spirit.

Latest Posts

  • First Week Down June 8, 2026
  • 2nd Semester Finals June 7, 2026
  • Black Belt Week One June 7, 2026
  • The Journey Begins June 6, 2026
  • New Black Belt Candidates June 3, 2026
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