Thunder MMA Academy in Wolcott, Connecticut, is home to Team Thunder! We Train MMA, Kick-Boxing, Grappling, No Ka Oi (self defense system). Our head coach is a Multiple time hall of fame inductee. We are currently train at ABS Fitness Center.


  • Joe lexis says:

    The best gym I’ve ever been to in Connecticut. Training is unlike any I’ve ever done before and the instructors knowledge of mixed martial arts is limitless. There is a vast amount of arts to learn from. Bjj, wrestling, catch wrestling, boxing, and No Ka Oi. Loyalty, respect , integrity, and honor are of the few things that I’ve learned along the way.

  • Danielle says:

    This is a great school for everyone. The kids classes keep the kids learning and having fun. the adult classes will get you into shape. the instructors are great and very knowledgeable about the martial arts and fitness. I learn some thing new every time I go. Thank you for making me more confident and energetic.

  • Mike says:

    The gym is an excellent place for all ages and skill levels. The students are eager to learn new skills and are always welcoming to new members. The coaching staff is qualified and knowledgeable. The classes provide a positive learning environment that promotes dedication, hard work, and encouragement. Classes run often and the schedule is flexible. I was working and attending college, but still able to participate and compete.

    Thunder MMA Academy & Sports Fitness Center HAS RELOCATED: 30 Echo Lake Rd, Watertown, CT 06795

  • Samantha says:

    I drive my child 25 minutes to take classes with Mr. Semeraro. He is excellent with the children and I have witnessed him teaching his adult MMA class and all I can say is wow! I can now see why he has SO many awards and honors. Mr. Semeraro belongs where he is in the Hall of Fame! Exellent instructor! I would highly recommened coming out to try his class.

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