Learn the Art of Defense

Brazilian jiu-jitsu and MMA training in Ronkonkoma, NY

Would you like to learn how to defend yourself in a safe and supportive environment? Our gym is a perfect place to train under a variety of fighting styles with the guidance of a master teacher. Get in the best shape of your life with responsible and effective fighting techniques. You'll develop healthy life habits, and find lasting friendships along the way at Lock Down Brazilian Jiu-Jitsu in Lake Ronkonkoma, NY

For years, we've been challenging our students to become the best versions of themselves. Don't just join a gym, join a family dedicated to helping each other rise up to our fullest potential. Our doors are open to all ages and skill levels.

Call 631-276-1338 today to register for your first Brazilian jiu-jitsu class.

Brazilian Jiu-Jitsu

Known as the gentle art Discover Brazilian jiu-jitsu fighting technique that can be used by anyone

Brazilian Jiu-Jitsu

MMA Striking

Learn how to use multiple martial arts systems and strike with power and speed.

MMA Striking

Submission Grappling and Wrestling

Submit your opponent on the ground.

Submission Grappling and Wrestling

Kids Classes

Sign up for youth classes today. Bully proof your child. Build confidence, disciple and focus to help with life skills.

Kids Classes

More than a sport

When you begin your journey with Lock Down Brazilian Jiu-Jitsu, you'll quickly realize it's so much more than just a sport-it's a lifestyle. Whether you're here to lose weight, learn self-defense or simply get out of the house, you'll experience a range of incredible benefits, including:

  • Stress relief
  • Lifelong friendships
  • Energy boosts
  • Improved critical thinking
  • Patience and humility
  • Tons of fun

The incredible teachers at our MMA gym devote themselves to creating a safe and fun environment where people of all backgrounds can come to get the results they seek. Speak with us today to get started on your journey.

Just did a drop in, my wife and i. While on vacation. Excellent class. Excellent group of students. Excellent excellent instruction. Pleasure to roll at lockdown bjj. We will be back next visit to long island. Oss!

- Daniel D.

Professor Joe is a great BJJ coach. A fearless competitor himself, he can work with you to help you become a great BJJ competitor. If getting in shape is your goal, he is a great motivator and will give you excellent advice on and off the mats. Most of all, you will have fun training BJJ with Professor Joe and his highly skilled students!

- Andrew O.

Professor Joseph Thompson is one of the most thorough, caring professors in the sport. He doesn't stop until the whole class is on the same page and grasping the move of the week. Patience and determination flows off him as does what he does best; teach this sport to others. Been with Joseph Thompson since the beginning, best choice I made was to join the family of Lock down BJJ.

- Jessica N.

Beautiful academy, great group of guys, features all the respect and discipline of a traditional martial arts school with the modern techniques of the the greatest fighting style ever known to man. I haven't known Professor Thompson long but I've been around the BJJ and MMA community on Long Island for over a decade and Professor Thompson is as knowledgeable and as detail focused an instructor as I've ever come across. He is also honest and trust worthy, and one of the top students of all time great Master Soca. Tremendous place to learn whether you are a complete newbie or a grizzled veteran!!

- Guy M.

I love my jiu-Jitsu family. Professor Joe is an amazing teacher. I am very happy to be training with these awesome people.

- Violet P.

I spent some time at Lockdown and had a really great time. The other people were really fun and welcoming and the facility is nice and clean. Joe, the instructor, is fantastic. He cares about the students deeply and teaches a great, well structured class. The is a great place wether it's your first class or you're a seasoned upper belt. Highly recommend!!


I am a white belt who trains at an affiliated BJJ school in Queens, so I came here to train only for about a month because I was going to spend that much time on Long Island. Professor Joe Thompson, the black belt who owns the school) was kind enough to take me in and help me as if I were his own student and guided me to improve my skills and even rolled with me and gave me some great pointers. The guys (instructors and class mates) are great and friendly. You can tell they take a closer look to their school values and make sure the environment is a positive one where even beginners will have a good time while learning the basics. I know they always do some specials to make sure people at the early levels at least train and get used to the techniques without being to concerned to be in a huge debt or long commitment before trying out and seeing if it works for them. The gym is beautiful, clean and lots of space; and I know they're building an even bigger and better place right next door so it's only going to get better. I hope if I'm in town I get to roll there when they open their new place. I totally recommend this school. You'll have a great time and learn from a great professor and instructors, who by the way always bring medals every time they compete. Thanks professor and thanks Lockdown team!

-Andres V.

Our list of available classes

At Lock Down Brazilian Jiu-Jitsu, you can choose from a number of different fighting classes. Join us to learn from masters in:

Brazilian jiu-jitsu

MMA striking

Submission grappling and wrestling

We also offer incredible opportunities for the children in our community through kids classes and outreach programs. They learn valuable life lessons that stick with them well into adulthood. Contact us today to learn more about our offered classes.