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Monster Brazilian Jiu-Jitsu & MMA
4.9 ★★★★★ 50 Google reviews · Muay thai gym in Smithtown, New York
Plan your first class
- Free trial or intro class most gyms welcome new members with a free trial or intro class — check their site or give them a call to book your first session
- Beginner-friendly all levels welcome, including total beginners — you don't need to be fit or have any experience to start
- Kids & youth classes kids and youth muay thai classes — built around discipline, focus, and confidence
- Private lessons private, one-on-one coaching available — a focused way to start or to work around a busy schedule; ask about availability and rates
- Sparring & clinch sparring and clinch sessions for members ready for controlled contact — always optional and coach-supervised
- Fight team a competition team for members who want to test themselves as amateur fighters
- Website & schedule smithtownmma.com — book classes and see the live schedule
- Phone (631) 683-5100
The classes they run
“Every member of this place from the kids to the blue hairs are the kind of people that would give you the shirt off their back.”
“If you're not sure where to join take one private lesson with Derek.”
“You shouldn't be surprised if you see multiple championship level Fighters training with him during their camps.”
Other martial arts here
“If you want to train in the art of BJJ, and have fun doing it in a family friendly type place then get to Monster and check it out.”
“It is an honor to be a part of themonster BJJ MMA and have the opportunity to be around the people who attend.”
What members say
“As a mother of 4 who also trains here, Monster proves to be a non intimidating yet competitive atmosphere to learn in.”
“There is no greater feeling than knowing how hard you can push yourself, and you get to do it day in and day out with the great family that is monster.”
“You shouldn't be surprised if you see multiple championship level Fighters training with him during their camps.”
“The price is great, especially for a big family and it is soooo clean!”
From the reviews
Monster Brazilian Jiu-Jitsu is the best! The people you train with are great. The instructors are world class and atmosphere is welcoming. Don’t be afraid to come and give it a try, you won’t be sorry you did.
Best place on Long Island to get fit and learn to defend yourself. There is no greater feeling than knowing how hard you can push yourself, and you get to do it day in and day out with the great family that is monster.
I've trained with Derek. He is very humble. So I will out him. Derek is a world class character. He is also a elite athlete, and trainer. Derrick is a Brazilian Jiu Jitsu prodigy. He has won multiple Brazilian Jiu Jitsu World Championships. With gi, and without gi. He is also a boxing champion, and trainer.
Incredible school. The professors are extremely knowledgeable and very good at what they do. They are amazing with all their students, especially the kids. The coaches are invested and so very attentive during training sessions. The space itself is always clean and maintained.
New to muay thai? Start at Monster Brazilian Jiu-Jitsu & MMA
Monster Brazilian Jiu-Jitsu & MMA comes up as a beginner-friendly gym — noted on their own site. If you've never thrown a punch or a kick, that's exactly who a good beginners program is for. A few things worth knowing before your first week. First, you don't need to be fit to start — you get in shape by training, not before it, and coaches scale the conditioning to you. Second, you won't be thrown into sparring — reputable gyms build fundamentals (stance, footwork, and the basic strikes of the "art of eight limbs") for weeks before any contact, and sparring stays optional. Third, all levels really are welcome — ask about a dedicated beginners or fundamentals class time so your first session is alongside others who are also starting out. Most gyms are happy to let you watch or try a class first, so reach out before you commit.
Your first muay thai class at Monster Brazilian Jiu-Jitsu & MMA
Nervous about walking into a muay thai gym for the first time? Almost everyone is, and good coaches expect beginners to come through the door. Here's what to know. What to expect: a typical first class is a warm-up, then drilling the basics on pads and bags — not fighting. Rest whenever you need to; no one will bat an eye. What to wear: shorts or athletic wear and a t-shirt; you'll train barefoot on the mats. What to bring: water and hand wraps if you have them — many gyms lend gloves for a first class, so it's worth asking when you call. As you keep training you'll add your own gloves, wraps, a mouthguard, and shin guards. Sparring is optional and comes later, once your fundamentals are solid. Arrive 10–15 minutes early to sign a waiver and meet the coach. It gets easier fast — most people feel far more at home by their third class.
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🥊 Free trial class — check their site