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Your Premier Martial Arts & Fitness Destination in Smithtown, NY
Monster Brazilian Jiu-Jitsu & MMA was founded in Smithtown, NY, with a commitment to discipline, respect, and continuous growth. Our academy fosters excellence in martial arts and fitness through a dynamic community of practitioners, seasoned instructors, and a curriculum designed for all skill levels. We emphasize Brazilian Jiu-Jitsu, Muay Thai, Krav Maga, and mixed martial arts, combining technical expertise with character development. Our team includes accomplished black belts and competitors who prioritize safety, technique, and personalized guidance.

Programs cater to children, adults, and athletes seeking competition training or physical transformation. The inclusive culture promotes camaraderie, mental resilience, and lifelong learning, ensuring every member achieves their goals. With flexible class schedules and introductory offers, we provide accessible pathways to martial arts mastery. Join a family dedicated to empowering individuals through proven methods and a shared passion for combat sports.
Services
Brazilian Jiu-Jitsu Muay Thai & Kickboxing Kids Martial Arts Krav Maga / Self Defense Boxing Kali Jeet Kune Do Wrestling Group Fitness Personal Training
Highlights and features
  • We offer world-class instruction led by seasoned black belts and competitors.
  • Our programs cater to all ages and skill levels, from beginners to advanced athletes.
  • We emphasize technical precision, safety, and personalized guidance in every class.
  • The inclusive community fosters camaraderie, mental resilience, and lifelong growth.
  • Flexible schedules and introductory offers ensure accessible, transformative training.
What people say
Mastered his craft Motivate clients Great guy
Services
Brazilian Jiu-Jitsu
Brazilian Jiu-Jitsu focuses on ground combat and submission techniques, emphasizing leverage and strategy over strength. Practitioners develop physical fitness, mental discipline, and self-defense skills through drills, sparring, and technical instruction. The program accommodates all levels, from beginners to advanced competitors, fostering progression in a supportive environment.
Muay Thai & Kickboxing
Muay Thai and Kickboxing combine punches, kicks, elbows, and knee strikes for high-intensity fitness and self-defense training. Classes improve cardiovascular endurance, coordination, and confidence through pad work, technique drills, and conditioning exercises. Suitable for all skill levels seeking practical combat skills or athletic development.
Kids Martial Arts
Kids Martial Arts programs build discipline, self-esteem, and physical coordination through age-appropriate techniques. Activities focus on core strength, situational awareness, and character development, instilling respect and perseverance. Classes create a fun, engaging environment for children to learn self-defense and life skills.
Krav Maga / Self Defense
Krav Maga teaches practical self-defense techniques derived from real-world scenarios, combining elements of boxing, judo, and jiu-jitsu. Training emphasizes quick reflexes, situational awareness, and confidence-building to neutralize threats effectively. Ideal for individuals seeking personal safety skills and high-intensity workouts.
Group Fitness
Group Fitness classes integrate martial arts techniques with plyometric conditioning to enhance strength, endurance, and agility. Sessions include circuit training, partner drills, and functional exercises tailored to improve overall fitness for martial artists and general enthusiasts alike.
People
Derek Mangi
Derek Mangi is a skilled martial arts instructor known for his attention to detail and ability to motivate clients. He emphasizes technical precision and personal growth in training sessions.
Questions
What martial arts programs are offered for beginners?
We offer Brazilian Jiu-Jitsu, Muay Thai, and Krav Maga classes for beginners with no prior experience required.
Are there youth martial arts programs available?
Yes, we provide Kids Martial Arts classes focusing on discipline, coordination, and character development for children.
What should I wear to my first martial arts class?
Wear comfortable athletic clothing and bring water. Specific gear requirements will be communicated for advanced classes.
Do you offer personal training sessions?
Yes, personalized training is available to enhance technical skills and fitness goals with one-on-one instruction.
Are there competitive training opportunities?
Advanced students can participate in sparring sessions and receive competition preparation for martial arts events.