Personalized Training. Backed by Science.
Credentials That Matter
Meet the trainer behind JBS Fitness
Will Sandoval
After earning my degree in Kinesiology from Cal State Monterey Bay and spending years coaching in gyms throughout the Bay Area, I realized the best results come from training that’s built around the individual.
That’s why I built JBS Fitness.
Today, every client begins with a comprehensive assessment and a personalized training plan grounded in movement, data, and long-term health. My approach combines evidence-based programming with the accountability and consistency needed to create lasting results. Whether your goal is to lose weight, build strength, or simply move and feel better, my coaching is designed to help you build healthier habits that last.
Choose your Training Experience
Every option begins with the same assessment-driven approach. The only difference is where and how we train.
01.
Personal Training
Fully personalized 1:1 coaching in my private gym built around your goals, movement, and lifestyle.
02.
Partner Training
Same coaching, shared cost. Train with a partner and stay motivated together.
03.
Virtual Training
Get a customized training plan, ongoing coaching, and regular accountability—wherever you are.
04.
Mobile Personal Training
Whether it’s your home, office, or a nearby park, I bring personalized coaching and equipment directly to you.
How it Works
The assessment-driven process ensures every program is built specifically for you.
01.
Consultation
02.
Assessment and DEXA Scan
03.
Personalized Program
04.
Ongoing Coaching
What Clients Have to Say
“Probably the best person I have ever worked with. He is super professional at the same time he actually cares for you and wants you to achieve your goals. I’m in touch with him even after my sessions with him were over. I wanted to continue with him forever but unfortunately I had to move to a different location. I wish we have more such trainers like him around.”
“I’m a certified personal trainer as well. Willis is a very knowledgeable and experienced trainer. He took me through a fitness assessment testing my maximal strength and cardio-respiratory endurance as well as taking baseline measurements of my weight, body fat percentage (via bioelectrical impedance scale) and hip to waist ratio for indications of overall health.”
“William is extremely professional and an attentive trainer. He helped me build muscle and navigate my different mobility issues from previous injuries via recovery exercises. He is extremely patient and digs deep to find the root cause for any issues and quickly adapts his workouts. I also got to learn a lot more about Bay area history and politics from him. I would highly recommend him as a trainer.”