​Bobby Calvert, widely known as "Ninja Bob," is the dedicated founder of the Black Scorpion Ninjutsu Society and Ninja Bob's Fitness. With a lifelong commitment to martial arts, his journey began at the age of eight, laying the foundation for a comprehensive and varied expertise.

​A Foundation in Discipline and Diversity

​Calvert's early training included boxing with the Police Athletic League (PAL), where he honed his striking skills under the guidance of Police Officer Donnie Broadway and Ricky Brigman. This disciplined foundation was followed by an extensive study of various martial disciplines, including the powerful strikes of Muay Thai, the throws and grappling of Judo, and, notably, the stealth and comprehensive techniques of Ninjutsu, which became his primary focus and passion.

​Dedication to Teaching and Competition

​More than just a practitioner, Bobby Calvert is a passionate instructor. He has dedicated himself to teaching and mentoring countless students over the years, sharing his wealth of knowledge and experience. His students have consistently excelled, competing successfully at both the Full Contact and Tournament levels, a testament to the quality and effectiveness of his instruction.

​As the driving force behind the Black Scorpion Ninjutsu Society and Ninja Bob's Fitness, Ninja Bob is committed to preserving the integrity of the art while empowering students to achieve their full potential in both martial arts and life.

Certified Fitness & Nutrition Coach

Get expert Bodybuilding, Fitness Coaching, and Personal Training from Bobby Calvert AKA Ninja Bob. Whether it's Weight Loss, Specialized Exercises for Weight Loss, Fitness Boxing, or Martial Arts Lessons, your path to a fitter you starts here with Ninja Bob's Fitness.