Welcome To our USSD Dojo in

Irvine Northwood

USSD Irvine Northwood has grown from a small group into a lasting legacy, guided by Master Jack Turner.

As the dojo has expanded, the mission has remained constant: create strong, confident leaders rooted in discipline and mutual support.

This school is where focus, respect, and personal transformation meet—preparing students for challenges in and beyond the dojo.

4960 Irvine Blvd Suite #101, Irvine, CA 92620
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Our Students Say...

Hanshi Turner's Dojo Is Amazing. The Culture At USSD Irvine Northwood Is Pure And Authentic And The Knowledge You Get From The Training Is Great.

Charlie T.

I've been training here for over 20 years(!). Soke Jack Turner is the Michael Jordan of martial arts, and to my knowledge he's the only 9th-degree black belt who still teaches children. And he's great with them! My own son started here at age 4 or so

Scott M.

Honestly, I was a bit nervous starting out - wondering if everyone was going to be strict, and harsh, and judge me if I wasn't good enough - but this dojo is the best positive environment for any person of any age to be in.

Sophie D.

Honestly, I was a bit nervous starting out... but this dojo is the best positive environment for any person of any age to be in.

Sofie D.
Meet the Chief Instructor

Jack Turner

Our friendly staff at USSD offers a variety of personalized training options curated to your individual needs and goals.  We can't wait to train with you!

What began with a small group has grown into a legacy—he’s now a guiding force behind thousands of USSD students and instructors.

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More Services:
  • Women's Self Defense
  • Weapons Training
  • Anti-Bullying Classes
  • Corporate Team Building
  • Birthday Parties
Other Instructors:
  • Christine Relf
Jack Turner
Chief Instructor

Dai Soke Master Jack Turner

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Master Turner began martial arts at 12 in Las Vegas after a friend invited him to class. What began with a small group has grown into a legacy—he’s now a guiding force behind thousands of USSD students and instructors. Alongside Master Richard Black, he leads the Shaolin Kempo system with vision and humility. His mission: “to give a little bit of myself to everyone I meet.” His advice: “You can make an excuse, or you can make it happen.” He values his faith, family (including his dogs), reading, and golf.

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Contact Me
Contact Us

Train at Our Dojo!

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Reach out
714-730-6870
Email
christine@ussdirvine.com
Visit us
4960 Irvine Blvd Suite #101, Irvine, CA 92620

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