Professor James Singletary

Professor James Singeltary is a distinguished figure in the martial arts community, celebrated for his dynamic skill set across Gracie Barra Brazilian Jiu-Jitsu, Tae Kwan Do, and Hapkido. A 2nd Degree Black Belt under Gracie Barra, he has been recognized as the #1 Ranked Master 7 Black Belt globally in 2020 and 2021, boasting multiple championships in IFBJJ and European IFBJJ competitions.
Beyond BJJ, James has a 4th Degree Black Belt in Tae Kwan Do, a 2nd Degree Black Belt in Hapkido, and has contributed his expertise as a combat hand-to-hand training instructor to the UAE military. His profound impact as a leader and coach extends beyond the mat, inspiring athletes and martial artists worldwide with his dedication and achievements.

Professor
Preston Parson

UFC | Brazilian Jiu-Jitsu Black Belt | MMA & Muay Thai Instructor

Coach Preston Parsons brings world-class experience and a fighter’s mindset to Solid Base Performance Center. Born and raised in Jacksonville, Florida, Preston made history as the first fighter from Jacksonville to earn a UFC contract, representing his city on one of the biggest stages in mixed martial arts.

With a career defined by discipline, technical mastery, and relentless drive, Preston continues to pursue high-level competition across global fight promotions. On June 28, 2025, he earned his Brazilian Jiu-Jitsu black belt, a milestone that reflects years of dedication to his craft both on the mats and in the cage.

At Solid Base, Coach Preston leads Kids MMA, Adult MMA, and Muay Thai Kickboxing programs. His coaching blends professional-level striking and grappling with a focus on building confidence, refining technique, and developing a champion’s mindset.

Whether you’re stepping onto the mats for the first time or preparing for competition, Coach Preston Parsons offers the knowledge, experience, and passion to help every athlete reach their potential.

Train with a UFC-tested professional. Train with Coach Preston at Solid Base Performance Center.

Professor Damon Mauro

Morning classes at Solid Base are led by Professor Damon, a Gracie Barra black belt, U.S. Navy veteran, and lifelong student of discipline and performance. After serving his country with honor, Damon pursued competitive bodybuilding, developing a deep understanding of strength training, conditioning, and nutrition.
With over 13 years of experience in Brazilian Jiu Jitsu, Damon earned his black belt under Professor Roberto Cuartero, and earned his Professor promotion from Professor Alexandre Dantas, representing the respected Gracie Barra lineage known for its technical precision and strong sense of community.
His unique background blends military discipline, athletic conditioning, and Jiu-Jitsu strategy. Damon has coached individuals across all walks of life, from high-level competitors to those simply looking to live healthier, providing customized training and nutrition guidance along the way.
Rooted in old school values and a fundamentals first approach, Professor Damon’s classes are ideal for anyone seeking to build a strong base, sharpen their skills, and grow on and off the mats.

Professor Nate Bryant

Nate is a distinguished individual with a background in both military service and academic pursuits. With 22 years of experience in the military, Nate specialized in combat search and rescue and logistics loadmaster roles, showcasing his dedication, resilience, and leadership skills in high-pressure environments.
His military career is marked by exemplary service and a commitment to excellence in every mission he undertook. Following his retirement from the military, Nate transitioned to academia, where he is a doctoral student in Business Administration. This move reflects his continuous desire for personal and professional growth, and his focus on business administration indicates a keen interest in applying his leadership skills and operational experience to the corporateworld.
Nate's broad expertise includes project management, Six Sigma, procurement, and logistics. His military background and academic pursuits have equipped him with a unique skill set that blends strategic thinking, operational excellence, and a profound understanding of complex logistical challenges. Nate is also an accomplished athlete outside his professional and academic life. He has a passion for endurance sports, participating in triathlons and marathons, which demonstrates his dedication, discipline, and resilience. Furthermore, Nate has excelled in Brazilian Jiu-Jitsu, winning six gold medals in IBJJF open placements and two gold medals in the prestigious PANS competitions. These achievements highlight his competitive spirit, physical prowess, and tactical acumen.
Nate Bryant's journey from a decorated military career to academic and athletic accomplishments paints the picture of a multifaceted individual who excels in every field he ventures into. His story is about continuous growth, discipline, and a relentless pursuitof excellence.