Stronger Through Community

Over 45 Years of Coaching Experience

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The Fortius Difference

  • Over 45 years of coaching experience
  • 2 Locations (San Diego and San Ysidro)
  • 12,000 sq ft of training space (Main facility)
  • San Diego’ s largest Olympic lifting program
  • Proven results and injury prevention
  • Programs for both competitive and recreational CrossFitters

Change Your Life

Got 3 hours a week? With our innovative CrossFit and weight training programs, wonderful group atmosphere, and expert coaches – 3 hours a week is all you need to get in the best shape of your life, make new friends, and become part of a fun and friendly community.

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Our Free Week Trial gives you the opportunity to experience our great CrossFit and weight training workouts and engaging community.

Our 30-day Money Back Guarantee demonstrates our commitment and accountability to your goals.

Years Coaching Experience

Sq Ft Training Space


Fortius Family

Reviews from our Fortius Family

We are only as strong as the community we have built. We encourage you to take a minute to see what our family has to say about their experience at CrossFit Fortius. Read more reviews here.

This place is seriously THE BEST. I’ve been to a number of boxes and Fortius stands about amongst the rest. The coaching is top notch and the community is unlike anything I have ever experienced anywhere else. I remember my first day, I was blown away by how friendly everyone was – I thought to myself, so THIS is where all the nice people hang out!

CrossFit literally changed my life and Fortius is where it all started. I couldn’t be more grateful to the owners Jesse & Dave for what they have created here and the confidence they have instilled in me. I never thought I would say it, but for the first time in my life, I feel like I can call myself an athlete.

Rachel R.

What can you expect?  I joined/participate in the crossfit side of the house.  They also offer an Olympic lifting membership.  I was nervous about joining a crossfit gym.  I heard all the cultish rumors and stories of injury.  Turns out, it kicks ass.  It is a great combination of Strength, Stamina, Skill and Conditioning.  Each workout starts with ample time to warm up and get stretched out, followed by a “skill session” where you practice skills related to crossfit, followed by a strength section (the only part I am good at) and you finish off with the actual workout of the day or WOD.

Tom C.

La Jolla, CA

Thinking about trying CrossFit in the new year? I highly recommend CrossFit Fortius! In full disclosure, I’m a 58 year old woman. They have workouts for all athletic levels and offer a full week free to try it out. Can’t beat that! I’ve enjoyed exercise all my life, but never joined a gym – until now.

Their coaching is TOP NOTCH. They care about what you need and how you’re doing it. The gym and equipment is clean, safe, and constantly being upgraded. The folks that workout there are terrific and supportive. They have many classes, plenty of parking, and long hours – come in when it’s convenient for you!

Diane N.

San Diego, CA

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