45 Riverside Ave.
    Medford, MA 02155
    (781) 395-7131

Welcome to Xtreme Ninja

Kids Muay Thai Welcome pic

At XTREME NINJA We are committed to serving our students by promoting a positive mental attitude and the highest level of physical fitness through the study of Karate, Muay Thai and Brazilian Jiu Jitsu. Our mission is to build our students into Black Belt Champions; to empower our students to be more successful in life through the practice of their martial arts, and to always influence them in a positive manner.

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Latest News

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Night of Champions

Charity Sparring Tournament raised money for Boston Children’s Hospital.

lion dance demo

Lion Dance Demo

The lion dance was performed at local event Circle the Square, followed by a Karate demo.


Kids Yoga

Kids explore the fun and benefits of yoga with a practice designed for little bodies and big hearts.

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Code of ethics

    • I will look for the good in all people and make them feel worthwhile.
    • I will always be in a positive frame of mind and convey this feeling to every person I meet.
    • I will give so much time to the improvement of myself that I have no time to criticize others.
    • If I have nothing good to say about a person, I will say nothing.

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