Mixed Martial Arts (MMA) Classes

Train Like a Champion

Are you ready to challenge yourself with the ultimate martial arts workout? Try a class for free and see why Sigma Martial Arts & Fitness is Boston’s top MMA training destination.

If you’d like to schedule a one-on-one private class, please reach out to the Sigma team directly by clicking here.

Master the Art of MMA – For All Skill Levels!

Looking to train like a pro? Sigma Martial Arts & Fitness offers Mixed Martial Arts (MMA) classes that combine striking, grappling, self-defense and ground-fighting techniques to give you the complete package. Our MMA program is designed for both beginners and experienced practitioners looking to take their skills to the next level.

Why Choose Our MMA Program?

  • Expert Instructors: Learn from seasoned professionals with years of experience.

  • Clean, Modern Studio: Train in a fully-equipped facility with top-tier equipment and ample space for sparring and drills.

  • Comprehensive Training: Develop well-rounded skills in striking, grappling, and submission techniques.

  • All Levels Welcome: Whether you're looking to step into the cage or just get a great workout, our MMA classes are designed for everyone.

  • Safety First, Always: Our instructors are trained in first aid, and we emphasize safe, controlled training to keep you injury-free.

Join Our Community! At Sigma Martial Arts & Fitness, our classes foster a culture of discipline, respect, and support. Whether you’re training to compete or just getting started in martial arts, you’ll find a community that pushes you to reach your full potential in a safe, positive environment.

What People Are Saying

  • Amazing coach, clean facility, nice and fun learning environment. Basically the best Muay Thai practice I ever had! Strongly recommended!!!!!

    Kaofang N.

  • This is a great place to learn karate for children the instructors have a lot a patience and they are also very professional and still make It fun for kids.

    Ana Maria L.

  • This is an awesome martial arts studio. The owner runs a clean operation, and the instruction is top notch. The dojo is well appointed with safety padding on floors and pillars, and has floor to ceiling mirrors to check your form during classes. I hope all aspiring martial arts students and aficionados alike take note of this hidden gem!

    Vambah S.

  • Very clean, spacious, and a great selection of gear to use.

    Joshua C.

  • This place is the best! They have a balanced mix of traditional and practical martial arts training. Their classes are always fun, informative and a great workout!

    Mickey T.

  • Was extremely impressed with how clean the dojo was! The Judo Instructor Sensei Mo was very friendly welcoming and knowledgeable. Cant wait to go back.

    Tony D.

  • I've been going here for almost a whole year, and I absolutely love the place. It's welcoming, fun, clean, and a great workout! The instructors are friendly and kind, they offer a lot of different classes, and it's great for both kids and adults. To me, it's a perfect middle ground between the extremes of super hardcore bro gyms that focus only on competition, and flakey programs that give you exercise but no real martial arts training.

    Alison E.


  • Impressive place. Clean, organized and professional. The instructors are seasoned professionals and everything is at your own pace. All skills levels. Everyone just super nice and supportive. And awesome workout!

    William B.

  • I started out doing adult martial arts, but liked the school and the style so much I have now also taken up Muay Thai. Both classes are a lot of fun. I am learning something new every time, and I’ve become much stronger (no more back pain, hurray!). For the quality of instruction, number of opportunities to train throughout the week and individual attention you get it’s really very good value for money. I cannot recommend this place enough!

    Lauren D.

  • This is a great addition to Medford. The studio is clean and the instructors are phenomenal. There's a great sense of community and the atmosphere is welcoming for anyone who is new or has experience in martial arts, kickboxing, or mauy thai. Since joining the studio, I have been recommending it to my friends since I'm always learning so much here and growing my skills in martial arts.em

    Kristina B.

  • As a new student to martial arts I really appreciate their attention to detail, stories about their previous experiences and of course getting in a good workout! I have had nothing but a great experience and look forward to many more classes. If you are considering starting martial arts or just want a good workout in a positive setting, I highly recommend Sigma.

    Jessica R.

Train Like a Pro! Claim Your Free MMA Class Now!