Del Mar · Performance Coach
WilliamCui
Del Mar Personal Trainer
Del Mar Personal Trainer
William Cui is a performance coach at Legacy Performance Institute Del Mar, 12264 El Camino Real, Suite 60, San Diego, CA 92130. Their coaching focus is body recomposition. William's profile lists NASM Certified Personal Trainer (CPT), NASM Physique & Bodybuilding Coach (PBC), NASM Certified Sports Nutrition Coach (CSNC), and CPR/AED Certified. Your first consultation and introductory session is free, and no membership is required to train with a coach.
Hey everyone, I'm Will! Since 2017, I have self coached my own bodybuilding journey including 3 successful competition preps. Bodybuilding is my true passion and I have completely dedicated myself to chasing progression and self-researching nonstop over the years, taking no voluntary breaks and allowing nothing to get in my way. Through countless massing and cutting phases, I've transformed myself from a scrawny 115lb distance runner into what you see today. At my recent bodybuilding competition, I competed in both Classic Physique and Men's Physique, winning the Men's Physique Overall title, 1st in Classic Physique Open Class B, and 2nd Overall in the Classic Physique.
Throughout the years I have casually coached and written programs for people around me and since 2022 I have been officially training all kinds of clients both in person and online. I have always been extremely detail oriented and consider any and all factors when it comes to one's progress in bodybuilding and fitness, and with my focus on helping others the past few years, I have further expanded my knowledge and adaptability to cater to clients of all kinds of backgrounds and conditions. When you transform your body, everything else follows — mobility, mindset, longevity. That's not a bonus. That's the point.
William's profile lists NASM Certified Personal Trainer (CPT), NASM Physique & Bodybuilding Coach (PBC), NASM Certified Sports Nutrition Coach (CSNC), and CPR/AED Certified.
Certifications show what a coach has been tested on. They do not replace a conversation, so use your free introduction to ask William how that training shapes the way they coach.
Every coach at Legacy works independently inside the facility, which means you choose the coach, and the coach builds the program. No membership is required to train with a coach. Coaching is booked directly with the coach you choose.
William's profile lists body recomposition as the main focus areas.
Skills and services the profile names: Athletic Performance, Bodybuilding, Calisthenics, Competition Prep, Flexibility & Mobility, Health & Wellness, Injury Prevention, Mind-Body Fitness, Nutrition Coaching, and Online Training.
On format, the profile mentions online coaching. Confirm what is available and how it is priced at your introduction.
Body recomposition is the goal of losing fat and building or keeping muscle at the same time, so the scale matters less than what the body is made of. It is slower to read on a bathroom scale and more durable than a crash diet, because the training signal that tells the body to keep muscle stays on while energy intake is managed.
Your coach records starting measurements, movement quality, training history and current eating habits, so progress is compared with your own numbers rather than a generic target.
Programs are built around progressive strength work for the major muscle groups, with the load, volume and rest chosen for your experience level and schedule.
Food guidance is practical: protein targets, meal timing that matches your day, and adjustments when progress stalls. Coaches work within their scope and refer out for medical nutrition needs.
Measurements, photos, training logs and how you feel are reviewed on a schedule, and the plan changes when the data says it should.
Every plan is built around the individual, so your coach will adjust this. As a general shape, the first four weeks of body recomposition coaching tend to run like this.
Measurements, photos, a movement screen and a look at how you eat and sleep. The first sessions teach the main lifts with moderate loads.
Training days settle into a pattern you can keep. Protein and meal structure get attention before anything fancy.
Weights and reps start to climb as technique holds. You begin to see which habits are helping and which are in the way.
Numbers are compared with week one, what worked is kept, and the plan for the next block is set.
The free introduction is your chance to see whether William is the right fit. These are good questions to bring for body recomposition coaching, and any coach worth hiring will answer them plainly.
Comparing is smart. These coaches at Del Mar share William's primary focus: Anna Zittel, Brooke Heaton, Caden Sears, Cassie Wood, Chance Dyck, and Chris Koo. Or browse the full Del Mar roster.
William coaches at Legacy Performance Institute Del Mar, 12264 El Camino Real, Suite 60, San Diego, CA 92130, in Del Mar and Carmel Valley. It is a private performance facility, not a public gym, so sessions run without a crowded floor or a wait for equipment.
Hours: 5:00 AM – 10:00 PM, seven days · 24/7 for VIP Access members.
Clients come from Del Mar, Carmel Valley, Solana Beach, Encinitas, Torrey Pines, and Rancho Santa Fe and the surrounding area. Get directions or see the full Legacy Del Mar facility.
Legacy is a private training facility, not a gym you join. You choose your coach; your coach builds the program.
Use the form below or call (760) 579-9286. Your first consultation and introductory session with a Legacy coach is free, with no obligation.
William learns your goals, history and schedule, looks at how you move, and explains what the first weeks would look like.
Coaching is priced by each coach. William quotes your rate after the introduction, so there are no surprises.
Sessions are booked with William at Del Mar. VIP Access Pass members receive a personal key fob and 24/7 facility access.
William Cui coaches at Legacy Performance Institute Del Mar, 12264 El Camino Real, Suite 60, San Diego, CA 92130. Hours are 5:00 AM – 10:00 PM, seven days · 24/7 for VIP Access members.
William's profile lists body recomposition. Skills and services named on the profile include Athletic Performance, Bodybuilding, Calisthenics, Competition Prep, Flexibility & Mobility, Health & Wellness, Injury Prevention, and Mind-Body Fitness.
William's profile lists NASM Certified Personal Trainer (CPT), NASM Physique & Bodybuilding Coach (PBC), NASM Certified Sports Nutrition Coach (CSNC), and CPR/AED Certified. Ask at your free introduction how that training shapes the way William coaches.
Use the introduction form on this page or call (760) 579-9286. Your first consultation and introductory session with William is free, with no obligation.
Coaching is priced by each coach, typically per session or as a package. William quotes your rate after the free introduction, so you know exactly what you are committing to before you commit. No membership is required to train with a coach. Coaching is booked directly with the coach you choose.
William's profile mentions online coaching. Availability and pricing for each format are confirmed at your introduction.
You meet William, tour Legacy Del Mar, talk through your goals, history and schedule, and leave with a clear picture of how the work would go. There is no obligation to continue.
William's profile centers on body recomposition coaching, and clients who seek it often include people who want to lose fat without losing the muscle they have, lifters who have plateaued and want a structured approach, and anyone who has dieted before and regained the weight. The best test is the free introduction: if the plan makes sense to you, you have your answer.
It is gradual by design. Most people see measurable changes in strength and measurements over several weeks, with visible change building over a few months, and the pace depends on training history, consistency, sleep and food. Your coach sets expectations from your own baseline at the free introduction.
Not always. Some people do well with counting for a while, others with portion habits and protein targets. Your coach picks the lightest method that still gets results for you.
Your first introduction and session are free. Tell us a little about your goals and we will set it up with William Cui at Del Mar.
This is general fitness information, not medical advice. Check with your physician before starting a new exercise or nutrition program, especially if you have a medical condition, an injury, or are pregnant.
