GYMKATA Fitness Trainers Keep you Fit

Our Hamilton, New Jersey space is not your average gym. Gymkata Personal Training was designed to be a fun, safe space for physical play. Our team of certified personal trainers makes sure your fitness routine never gets stale with a variety of group classes, one-on-one personal training, and small group training. We also use non-traditional equipment: warped wall, monkey bars, weight sled, salmon ladder, battle ropes, strongman tractor tire, and more. Come visit our athlete’s playground.



Peter Espinoza
Peter EspinozaTrainer/Owner

Peter loves challenging himself as much as he does his clients, keeping up with the latest fitness drills, the most grueling events, and participating in road races and mud runs throughout the year.

Peter is dedicated to your health and personal improvement – he opened this gym as a place for the fittest of the fit, and those aspiring to become so. Under his guidance, you’ll perfect your form, crush your doubts, and begin to reach your goals.


National Academy of Sports Medicine (NASM)
World Instructor Training School (WITS)
American Red Cross (AED)
CRP Certified

Eric Wall
Eric WallTrainer

Eric believes in making physical activity more engaging and empowering clients to achieve health and fitness goals through creative expression.


National Academy of Sports Medicine (NASM)
Performance Enhancement Specialist
Corrective Exercise Specialist

Greg Nalbone
Greg NalboneTrainer

We will FOCUS. We will COMMIT. We will ACHIEVE.
My personal training philosophy is all about my clients.

I take great pride in giving trainees the knowledge and tools to achieve their health, fitness, and appearance goals.  When you walk through the door, you’re my number one priority. We’ll focus on completely engaging your mind and body, and harnessing your potential for greatness. As our workouts evolve, we will make sure to keep them extremely effective—and fun, too.

Become a GYMKATA PERSONAL TRAINING member today!