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Staff

  • Derek Stewart

    With 30 years of martial arts experience, Sensei Derek Stewart is arguably the best the Heartland has to offer. Sensei Derek Stewart is a 4th Degree Black Belt through the Otomi Martial Arts, a 3rd degree black belt in Kihido Karate, a 2nd Degree Black Belt in Sanuces Ryu Jiu-Jitsu under former world champion Shihan Daryl Johnson, and certified instructor in the progressive fighting arts.

    In addition to all of Sensei Derek’s martial arts achievements he is the first and only 10th Planet Jiu-Jitsu Black Belt in Nebraska promoted under the creator of the 10th Planet system, the legendary Eddie Bravo. Ever the student, he is currently continuing his study of 10th Planet Jiu Jitsu, Brazilian Jiu Jitsu, Filipino Martial Arts, Kickboxing, and more. Derek’s talent and passion for teaching are evidenced by his deepening pool of successful jiu jitsu practitioners and fighters under his tutelage.


  • Anthony Lopez

    Anthony Lopez


    Eddie Bravo Brown Belt - SIMS Black Belt - Full Time Youth Jiu-Jitsu Instructor

    Pan American No-Gi Jiu-Jitsu Champion

    3xNational Champion

    Silver and Bronze Medalist in World Championships

  • Justin Harter

    Justin Harter


    Derek Stewart Brown Belt - Asstaint Adult Jiu-Jitsu Instructor

    MMA Belted Champion

    Multiple Time Regional Champion

    NAGA Expert Championship

  • Nate Bridges

    Muay Thai Instructor
    With over 10 years of martial art experience, Nate Bridges is a Blue Belt under Duane "Bang" Ludwig; and a purple belt in the Science of Integrated Martial Systems under Derek Stewart. Whether his students wish to become a fighter or develop their skills as a martial artist, he aspires to support their goals.

    Growing up in a military family, he has lived near Offutt Air Force Base his whole life. He has trained in Traditional Karate at an early age and originally developed his kickboxing skills within the Unified Fighting System of Jeet Kune Do. While he wrestled for 6 years he has taken these skills in developing the transitional skills between striking and grappling.
  • Edward Hamilton

    Youth Wrestling Coach

    10th Planet Jiujitsu Blue Belt

    Asstaint at Iowa Western

    Former Papillon High School Wrestling Coach
  • Kristine Campbell

    As one of the Midwest most active and winning female jiujitsu athletes Mrs.Campbell has begun to make a name for herself amongst the top female competitors in the region.

    With dozens of submission victories and countless competition victories at white and blue belt Kristine’s eyes are now set on becoming the best female no-gi jiujitsu fighter in the world.

    When necks are not being squeezed and joints aren’t being dislocated Mrs.Campbell is Academy Secretary and Assistant at S.I.M.S. Martial Arts Academy where she is a current and active member of the 10th Planet Jiujitsu Omaha famed competition team: “The Children of the Corn.”


    Reach Kristine at 402-925-3555

  • Ryan Yamada

    Bio coming soon