America’s Best Martial Arts

Simi Valley, 21360 Devonshire St, Chatsworth, CA 91311

Location of America’s Best Martial Arts campSimi Valley, 21360 Devonshire St, Chatsworth, CA 91311

About

America’s Best Martial Arts offers BJJ Little Rollers for ages 3-5, BJJ Juniors for ages 6-12, BJJ Adults for ages 13+, Karate Little Dragons for ages 3-5, Karate Juniors for ages 6-12, Karate Adults for ages 13+, Krav Maga Juniors for ages 6-12, and Adults Krav Maga for ages 13+.

Programs

  • Krav Maga Juniors — 6-12
  • Adults Krav Maga — 13+
  • BJJ Little Rollers — 3-5
  • BJJ Juniors — 6-12
  • BJJ Adults — 13+
  • Karate Little Dragons — 3-5
  • Karate Juniors — 6-12
  • Karate Adults — 13+

At a glance

  • Ages: 3–18 years old

About the provider

Mark Cox established America’s Best Martial Arts in October 1990. The program says it teaches real self-defense with a competitive edge and supports a family-oriented environment while teaching applicable martial arts techniques. It says it warmly embraces students of all backgrounds and experience levels and enforces a judgement-free zone. Mark Cox has over 700 black belts and counting, is a best-selling author, and is an influential motivational speaker. Ashley Sage holds a 1st Degree Black Belt in Krav Maga and a Level 4 Instructor Certified rank in the Federation. Brooks Morgan is a 2nd Degree Black Belt in Krav Maga under the AKMF. Anica Fountaine is a 4th Dan Black Belt under Grand Master Cox.

The school offers classes in Chatsworth and Simi Valley. It says to choose a location. It offers a 2 week trial for $29 and a T-shirt.

What families say

“The owner and the instructors here go out of their way to make sure you learn and you have a great experience.” — Robert M.

“I've been training here for about 4 years; the staff are professional, knowledgeable, and fantastic teachers.” — Brigit H.

“My son enjoyed his time there as everyone, staff and peers, eventually became family. They treated him like one of their own.” — Roland F.

Last updated September 17, 2026.

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