Personal Training in San Francisco & the East Bay
Individualized strength, fitness and performance coaching with Sean O’Brien, CSCS.
20+ years of experience · NSCA-CSCS · Former professional runner & NCAA All-American
Individualized training
I work with each client individually to develop a program that is challenging, sustainable and adaptable, and is based on their goals, experience and lifestyle.
Strength · Mobility · General Fitness
Weight Loss · Athletic Performance
Where I train
San Francisco
Private training at DIAKADI, outdoor sessions, and select in-home training throughout San Francisco.
East Bay
In-home and outdoor personal training throughout the East Bay. Based in Lafayette, I work with clients from Oakland and Berkeley through Walnut Creek and surrounding communities.
What clients say
Sean is a great trainer and really knows what he’s doing. I’d highly recommend him to my Olympic teammates and friends.
Matthew Centrowitz
2016 Olympic Gold Medalist, 1500m
Sean kept me motivated while adapting exercises around my limitations. I lost substantial weight, became stronger and more flexible, and—more importantly—completely changed the way I think about health and fitness.
Terri D.
Sean listened to my goals, tailored my training to them, and helped prepare me physically for challenging alpine climbs, including Mt. Baker’s North Ridge and Forbidden’s West Ridge.
James W.
About Sean
I’ve worked as a personal trainer and strength and conditioning coach for more than 20 years. My background includes competing professionally in track and field, racing at the U.S. Olympic Trials and representing the United States internationally.
Today, I work with clients with a wide range of goals, including improving strength and fitness, losing weight, and preparing for athletic or outdoor challenges. One of my favorite parts of the job is hearing a client say that I’ve made a positive difference in their life.
Ready to get started?
Let’s talk about your goals and what you’re looking for in training.