About Gravity BJJ

Meet Our Team

Gravity BJJ offers the highest level of Brazilian Jiu-Jitsu instruction for families and individuals as a means for personal growth, progress and to strengthen the family spirit; going beyond the competitive realm. We provide students with a solid foundation of knowledge that will develop ones skills, no matter what age, gender or ability. Our clean, friendly and progress oriented environment will allow students to feel rewarded and satisfied after having a challenging, inspirational training experience.


Gravity BJJ values wellness, loyalty, discipline, honor, and respect. We would love for you to stop by and join us for a free trial class. You will find a friendly atmosphere that’s both exciting and stimulating allowing you to achieve your goals. If you are interested in learning more about the great benefits that Brazilian Jiu-Jitsu can bring to your life, call/email today to schedule a free class!






Professor Logan Lidemark

 Brazilian Jiu-Jitsu Black Belt, First Degree 

Logan is head instructor at Gravity Brazilian Jiu-Jitsu. He is a black belt in Brazilian Jiu-Jitsu and has over 14 years of experience. With an extensive background in Boxing, Muay Thai, Wing Chun, weapons of Kali, Judo, and Gracie Jiu-Jitsu, he is committed to helping others reach their health and wellness goals and it shows in his ability to teach people of all ages; from 5 to 85 years old. Logan’s greatest attribute is his patience, kind demeanor and ability to break down the most complex techniques into easy to learn steps.


Logan is also a decorated competitor, competing in many local and international tournaments. His most recent accomplishments have been Gold in the American Nationals and Miami Open. Logan also volunteers his time 4-5 days a week to inner city schools, teaching children self defense in the Jumpstart Academy Program.




Sofie Zambas

 Brazilian Jiu-Jitsu Brown Belt, PTS 

Sofie is a dedicated personal trainer and fitness expert. She has 14 years experience in martial arts, a strong background in kickboxing, Can-Fit-Pro Personal Training Specialist (PTS) certification, and a brown belt in Brazilian Jiu-Jitsu.


Sofie is committed to helping students meet their goals, both in and out of the gym. Her wealth of experience, knowledge of health and nutrition,and can-do attitude make her the ideal fitness and BJJ coach.


Sofie has an excellent competition record in Brazilian Jiu-Jitsu, including two silver medals at the Miami Open, bronze at the American Nationals, and bronze at the World Championships.