About The Lab BJJ

Martial arts, fitness, and wellness

The Lab is a family-owned Martial Arts and Strength and Conditioning facility providing their customers with decades of experience in the health and wellness industry.

  • <p>Brett Oteri</p>

    Brett Oteri

    Brett – Co-Owner, Brazilian Jiu-Jitsu Black Belt & No-Gi World Champion

    Brett is the co-owner of The Lab and a highly accomplished Brazilian Jiu-Jitsu black belt, coach, and professional athlete. Most recently, he earned the titles of No-Gi World Champion and No-Gi Pan Champion (Master 4), establishing himself as a top-level competitor and instructor in No-Gi Brazilian Jiu-Jitsu.

    With over 20 years of experience in the martial arts and fitness industry, Brett specializes in Brazilian Jiu-Jitsu, functional strength training, and nutrition coaching. He holds a Master of Science in Exercise Physiology and a Bachelor of Science in English, and is committed to continued education to ensure his students and clients receive the most current research-based training and nutrition strategies.

    Brett is a Precision Nutrition Level 1 Coach, Functional Movement Screening (FMS) Specialist, Russian Kettlebell Instructor, and Certified Personal Trainer. He is also the author of Change Your Body Shape and The Everything Guide to Weight Training, further establishing his expertise in strength training, athletic performance, and body transformation.

    As a professional-level competitor, Brett has competed in mixed martial arts (MMA), Brazilian Jiu-Jitsu, wrestling, bodybuilding, and triathlons. This diverse athletic background allows him to deliver a highly adaptable, functional, and individualized training approach, helping students and athletes improve performance, prevent injury, and achieve long-term results.

  • <p>Kristen Oteri</p>

    Kristen Oteri

    Co-Owner / Operations Manager

    Kristen shares the passion for health and wellness with husband Brett as the Operations Manager ensuring optimal daily functioning of the business. She has over 15 years of experience in the healthcare industry and is a practicing Clinical Nurse Leader within a local Emergency Room. Kristen is the head instructor of the Women’s Self Defense and Strength & Conditioning Program and a purple belt in Jiu Jitsu. She has a Bachelor of Science in Nursing and a Bachelor of Science in Exercise Physiology. Kristen specializes in Functional Medicine and offers consultations within the Wellness Lounge. 

About Us

At The Lab BJJ, we believe in transforming every individual into their best selves through Brazilian Jiu-Jitsu and personalized training. Join our community in Westwood, MA, and experience a supportive environment dedicated to your growth and success.