Mark and Obi Amrine, longtime San Diego residents and proud parents, own USA Ninja Challenge Poway in California. Deeply involved in their community through PTA programs, club sports, and charitable events, they bring strong leadership and business experience to their gym. Mark, with a background in business development and child development support for military families, holds a B.A. in Psychology and an MBA. Obi, a 20-year U.S. Marine Corps veteran, brings operational and program management expertise, with degrees in Business Administration and Strategic Intelligence. Together, they are dedicated to promoting youth fitness, confidence, and resilience in a supportive and empowering environment.
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USA Ninja Challenge is a year-round obstacle course training program that combines basic skill sets from gymnastics, climbing, cross-training, and track & field. The sport of Ninja is quickly becoming the most fun and creative way to meet the physical needs of today’s kids! USA Ninja Challenge is open to boys and girls ages 2.5 to 17.
Our class program has 6 levels to master with a wide variety of progressions, drills, and challenges. Ninjas who demonstrate their mastery of skills advance to the next level of training. Each Ninja progresses according to their own abilities. The purpose of the program is to build children’s self-esteem, confidence, and sense of accomplishment, one obstacle at a time.
