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JG Monster Jiu-Jitsu Fitness
5 ★★★★★ 16 Google reviews · BJJ gym in Brooklyn, New York
Plan your first class
- 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 BJJ 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
- Today see hours ·
- Website & schedule jgmonsterjiujitsu.com — book classes and see the live schedule
- Phone +1 646-373-1901
Hours
| Monday | 9 am–9 pm |
| Tuesday | 9 am–9 pm |
| Wednesday | 9 am–9 pm |
| Thursday | 9 am–9 pm |
| Friday | 9 am–9 pm |
| Saturday | 9 am–9 pm |
| Sunday | 9 am–9 pm |
The classes they run
“I am also working with Sensei Jeff to do his private training gym-sessions now as well.”
“Jeff teaches jiu jitsu in a way that is accessible to everyone from beginners up to higher level practitioners.”
Other martial arts here
What members say
“He is a GREAT coach, and he looks at diet and does individual work outs with you under his BLACKBELT-MINDSET private coaching.”
“Jeff teaches jiu jitsu in a way that is accessible to everyone from beginners up to higher level practitioners.”
“If you’re looking to get in the best shape of your life while learning an effective martial art in a welcoming environment, look no further than JG Monster Jiu Jitsu.”
“Jeffrey is a great coach, always will help you and pause the drills just so you understand the details of every move.”
“If you’re looking to get in the best shape of your life while learning an effective martial art in a welcoming environment, look no further than JG Monster Jiu Jitsu.”
“Jeff is also deeply committed to maintaining a clean and safe environment for his students to learn and grow in.”
From the reviews
I joined JG Jiujitsu as soon as they opened. I am a 58 year old male and have had my life challenges. Since joining my energy level has improved, my core strength has improved, I am getting in better shape, and I am learning techniques and movements that I never thought were possible for myself.
Great brand new spacious facility! Jeff is super cool and friendly great and relatable teacher. His skills are superb and his teaching methods have been learned from the best in the world. When I went I felt more like family than just a student.
I was looking for a reliable BJJ academy that would feel more like a family, rather then just a martial arts school...And I found one. Jeffrey is a great coach, always will help you and pause the drills just so you understand the details of every move. Every session feels like a private class.
Jeff is someone who breaks down the moves for a beginner and helps them know what they are doing. He truly cares and not just when there with but when we leave too. If something is going on and I couldn't come - Jeff encouraged me to come back when I can. He is a motivation to the max!
New to BJJ? Start at JG Monster Jiu-Jitsu Fitness
JG Monster Jiu-Jitsu Fitness comes up as a beginner-friendly gym, going by their listing and members’ reviews. If you've never rolled or set foot on a mat, 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 or flexible to start — you get in shape by training, not before it, and coaches scale the intensity to you. Second, you won't be thrown into hard rolling — reputable gyms build fundamentals (positions, escapes, and basic submissions) for weeks, live rolling eases in gradually, and tapping early keeps every roll safe. 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, and leave your ego at the door. Most gyms are happy to let you watch or try a class first, so reach out before you commit.
Your first BJJ class at JG Monster Jiu-Jitsu Fitness
Nervous about walking into a BJJ 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 basic positions and escapes with a partner — not hard sparring. Rest whenever you need to; no one will bat an eye. What to wear: athletic wear you can move in (or a gi if you have one); you'll train barefoot on the mats. What to bring: water and a mouthguard if you have one — many gyms lend a loaner gi for a first class, so it's worth asking when you call. As you keep training you'll add your own gi (or a rashguard and shorts for no-gi) and a mouthguard. Live rolling eases in gradually, 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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