Welcome To our USSD Dojo in

Yorba Linda

Located on Yorba Ranch Road, USSD Yorba Linda is led by Chief Instructor Trent Zappen, a 5th Degree Black Belt.

His dojo offers specialized programs like weapons training and women's self-defense, empowering students of all ages to build resilience, precision, and purposeful strength in a structured, welcoming environment—no matter where they start.

4965 Yorba Ranch Rd, Yorba Linda, CA 92887
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Our Students Say...

This school rocks! They care about their kids and students and teach real fighting. My son has been in three different martial art schools and this DOJO is by far the best!

T.O. G.

Excellent studio. The sensei’s are world class and teach valuable life lessons. My kids have benefited both physically and emotionally and have an increased confidence in their abilities.

Robby S.

My son has been going to USSD YL for 2 years! The instructors are great and have patience teaching kids. My son has learned a lot to include weapons training. Will definitely recommend for people of all ages!

Mericela M.
Meet the Chief Instructor

Trent Zappen

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!

With over three decades of martial arts mastery, Chief Instructor Trent Zappen is a force of passion, power, and precision.

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More Services:
  • Women's Self Defense
  • Weapons Training
  • Anti-Bullying Classes
  • Corporate Team Building
  • Birthday Parties
Other Instructors:
  • Tanner Diaz
  • Cath Sayasith
  • Evan Neylan
  • Matthew Genadry
Trent Zappen
Owner & Chief Instructor

With over three decades of martial arts mastery, Chief Instructor Trent Zappen is a force of passion, power, and precision. A 5th Degree Black Belt in Shaolin Kempo, Master Zappen earned his 4th Degree at the legendary Shaolin Temple in China—an honor few achieve. As the North American Ambassador for the Shaolin Federation, he carries the legacy of discipline and excellence across continents.

Beyond Shaolin Kempo, his diverse training includes Wushu, Jiu Jitsu, and a strong focus on Women's Self-Defense, making him a well-rounded and dynamic instructor. His dedication and impact have earned him prestigious accolades, including USSD Instructor of the Year (2013) and USA Martial Arts Hall of Fame School of the Year (2015).

When he’s not leading the charge at the Yorba Linda dojo, Master Zappen recharges by spending quality time with his family, crafting in his woodworking shop, and exploring his love of cooking.

Join his classes and experience the energy, expertise, and inspiration that define a true martial arts leader.

Contact Me
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Train at Our Dojo!

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Reach out
714-777-5026
Email
ussdyl@gmail.com
Visit us
4965 Yorba Ranch Rd, Yorba Linda, CA 92887

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