Martial Arts and Fitness Academy in New York

At GrappleBox, also known as Eastside Brazilian Jiu Jitsu, we believe martial arts is more than training on the mat. It is a path to discipline, resilience, and personal growth. Located in the heart of the Financial District, our martial arts and fitness academy in New York is designed for individuals who want to unlock their potential, challenge themselves, and build lasting confidence. Whether you are just beginning your journey or have years of experience, our classes provide expert-led instruction and a supportive community to help you succeed.

Adults Martial Arts Classes in NYC

Our adult martial arts classes in NYC focus on the art of Brazilian Jiu-Jitsu and the fundamentals of kickboxing. Training here is not only about learning practical self-defense but also about improving strength, flexibility, and mental toughness. Through consistent practice, you will discover how to push past your limits while developing valuable skills that apply both on and off the mat. Each class is structured to balance technical drills with physical conditioning, ensuring that you continue to grow at your own pace while feeling challenged and supported.

Best MMA Gyms in New York

What sets GrappleBox apart from some of the best MMA gyms in New York is the depth of experience and teaching style of our head instructor, Professor Chris Reymann. A second-degree black belt under Master Renzo Gracie and Professor John Danaher, Chris brings decades of expertise, international training, and championship-level experience to every session. His background in Grounded Language Learning provides a systematic and clear approach that helps students stay engaged without feeling overwhelmed. This teaching method ensures that even the most complex moves become accessible and easy to understand.

MMA Gym in New York City

For those seeking an MMA gym in New York City that combines technical excellence with a welcoming environment, GrappleBox offers exactly that. Our academy blends the strength and strategy of Brazilian Jiu-Jitsu with the striking techniques of kickboxing, creating a complete martial arts program. Students learn not only how to defend themselves but also how to become stronger physically and mentally. The community at GrappleBox encourages mutual respect and growth, making it a place where beginners and advanced practitioners can thrive together.

MMA Gym in Brooklyn

Our academy attracts students from across the city, including those looking for an MMA gym in Brooklyn. The convenient location at 66 Frankfort Street makes GrappleBox accessible to commuters and residents throughout New York City. With proximity to Wall Street, the Oculus Center, ferry access, and major train lines, our facility is designed to fit into your busy schedule without compromise.

Membership Options

GrappleBox offers flexible memberships to suit different needs and lifestyles:

• Group Classes – Three classes per week at $180 per month.
• Private Lessons – One-on-one training with Professor Reymann at $150 per session.
• Video Class Archive – Coming soon for remote training and continued practice.

Each membership plan is built to provide value and quality instruction while allowing you to choose the training frequency that fits your goals.

Why Train at GrappleBox

• Gain practical self-defense skills through world-class Brazilian Jiu Jitsu.
• Improve overall health with functional strength training, stretching, and conditioning.
• Learn under a highly experienced black belt with decades of expertise.
• Join a community of motivated individuals who support one another on and off the mat.
• Train in a convenient Financial District location accessible by subway, ferry, and walking paths.