Learn How to Join the OneHeart Challenge
If our work speaks to you, learn how you can join us in the Challenge.
Much More than a Black-Belt Test
Join a team of like-minded karate students as we embark on a journey through the OneHeart Challenge, 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.
Join us in the spirit of Isshinryu, where for us, the journey to black-belt becomes a quest to bring our practice Out of the Dojo and Into the World.
It's About the Small Things
The OneHeart Challenge is a fine example of how small things, done consistently over time, add up to big things. Together, here is what we have accomplished so far!
9,474
Repetitions of Kata
8,423
Rounds of Sparing
445,003
Push-Ups
484,179
Sit-Ups
9,805
Miles Traveled
9,616
Acts of Kindness
41,813
Minutes of Meditation
48
Books Read
OneHeart Challenge Coaches
Meet our Challengers
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Recents Posts
OneHeart ChallengeWords Have PowerTonight during the instructor meeting, my cat Uzume decided she needed to join the Zoom. I chose to introduce her to the attendees after she kepNovember 5, 2026
OneHeart ChallengeRecovery So FarSo far, recovery has been ok; the first week was mostly just spent sitting or lying down with my knee immobilizing brace on. I had crutches to use wheNovember 4, 2026
OneHeart ChallengeKnee InjuryI know what you’re thinking: “Avi, another injury? Jeez, what did you do this time? Was it sparring? Did you try to get off the shomen agaNovember 2, 2026
OneHeart ChallengeOctober RecapThis past month, I think, has been the hardest of my test so far. Sadly, my Oma (great-grandmother) passed away late this month. It was a really big lNovember 2, 2026
