Strength, Community, and Purpose
Stallion Fitness was built from the ground up, not just as a gym, but as a place of opportunity, resilience, and respect. Founded by Sean Antwan, a Chaldean American who immigrated to the U.S. after years of hardship, Stallion is a reflection of his journey and the values that carried him forward: hard work, family, and the pursuit of health.
What began as free outdoor classes and one-on-one training during the early days of COVID-19 has now grown into a full-service private gym with locations in El Cajon and La Mesa. Every inch of the space was designed with care and state-of-the-art equipment, certified personal trainers, and a no-judgment atmosphere where members feel safe, respected, and motivated.
We're proud to offer memberships, personal training, and a curated selection of supplements through our in-house Stallion Shop But above all, we're proud to be part of a fitness community that uplifts each other and makes health a priority; regardless of where you start.
Join Stallion Fitness
Built for the Community
With two Stallion Fitness locations, you're never far from a supportive, no-pressure gym environment. Whether you're lifting for the first time or chasing a new PR, Stallion Fitness is built for accessibility and comfort. Each gym is fully equipped, trainer-supported, and designed so every member feels welcome.
El Cajon
450 Fletcher Pkwy #109
El Cajon CA 92020 (619) 270-7908 stallionarena@gmail.com Google Maps DirectionsLa Mesa
8227 La Mesa Blvd
La Mesa CA 91942 (619) 467-7457 stallionarenalamesa@gmail.com Google Maps Directions
What Sets Stallion Fitness Apart
Community-Focused
We've built Stallion Fitness to be welcoming and respectful. Whether you're brand new or a seasoned athlete, you'll feel supported by our members, trainers, and environment.
Private & No-Pressure
Unlike commercial gyms, Stallion is designed for privacy and peace of mind. No staring and no judgment, just a clean space to focus and grow.
Expert Trainers
Our trainers don't just work here, they're part of the community. Every coach is certified and handpicked for their ability and passion to help you succeed.
Full-Service Support
From personal training to supplements, memberships to group sessions — we offer a full approach to health and strength, all under one roof.
Meet the amazing team behind Stallion Fitness
Sean Antwan
CEO | Personal Trainer
Background
As a professional Fitness trainer, my passion is to guide people towards a healthier lifestyle. Every body is unique, with their own strengths and limitations. My method is building a custom plan based on your health, schedule and most important, your fitness goal.
Certifications
- Fitness Nutrition Coach
- Sports Injury Specialist
- Physique and Figure Specialist
- Heart Rate Performance Specialist
- Biomechanics Specialist
- Lifestyle Weight Management
- Core Conditioning Specialist
Sandra Rafo
Trainer
Background
I’m very passionate about helping others find happiness in life and feel good about themselves. I believe that when you FEEL GOOD, you excel in life. For me, a healthy lifestyle is much more than just lifting weights. It’s about stretching, warming up, eating healthily, and getting necessary rest and enough sleep. I love helping others see and experience what their bodies are capable of with just enough hard work. I make it a goal to help you achieve a happy and well-balanced lifestyle.
What Our Members Are Saying
With over 160 five-star reviews across our El Cajon and La Mesa locations, Stallion Fitness is trusted by real members getting real results. Don't just take our word for it, hear what they have to say.
“Such a great gym! They've recently expanded and it looks so good! Lots of equipment and space, it's not crowded like commercial gyms are, and it's very clean and well-kept. Sean is an amazing trainer - motivating, educated, and super friendly. 10/10 recommend Stallion Arena :)”
Lauren V. Member“The best gym experience I've ever had. I have struggled with weight loss my entire life. When I met Sean at Stallion he coached me in a way that worked best for me. In 6 months I lost 35 lbs. Sean is an amazing trainer. Knowledge, professional and friendly. The staff and the gym members are great. Such a great vibe.”
Steve M. Member
Gear Up. Stay Fueled.
From performance supplements to everyday gym gear, the Stallion Shop is your source for essentials to support your training. Order online or shop in person at our El Cajon location, whatever fits your routine.
All Products