Stamford’s Premier CrossFit Facility, CrossFit J3

  At J3 Athletics, we believe that all people are meant to be active, regardless of age.  Whether your idea of activity is playing sports, or hanging out with friends, we want to allow you to live that lifestyle without reserve.  We will help you move better, have more confidence and avoid disease and injury to live how YOU want to live.


RESPECT - For yourself and your goals. For others around you both in the gym and in life. For the equipment and facility we all consider a second home.

PASSION - Simply put...We care; about you, about your goals, about what we do for our livelihood.  We hope you are passionate about something as well, whether it be gym related or not.

COMMITMENT - Set goals for yourself and be committed to them. We are here to help you with that, but ultimately it comes down to your desire to be better tomorrow and everyday moving forward. Be coachable and have an open mind to new things as they make you well rounded and stronger.

Your only limit is you

Stop making excuses. Start making progress.

Our Facility

J3 Athletics, home of CrossFit J3’s spacious 3,750 square foot facility is where you break your limits – both physical and mental. Well-stocked and meticulously organized, we’ve set up the optimum space for you to sweat out the stress of your day and prove to yourself that you can do ANYTHING. With over 15 years of coaching experience, our expert coaches give you everything you need to build a new-and-improved you. Top-tier CrossFit and strongman equipment provide constant variety and keep you moving towards your goals. For your convenience, our facility offers 3 full bathrooms, towel service, lockers, a carpeted lounge area, full LED lighting, as well as Kettlebell Kitchen meal delivery service! Click on the button to take a tour of J3 Athletics now!

  • J3 is a happy place to enter everyday. Honestly i didn't know what to expect. I was coming from a boutique style gym with a real social atmosphere and i was nervous about being in an "only CrossFit" place. That feeling was gone the day I got there, everyone is so friendly, it is a great community of people working together to reach the same goals. Everyone helps each other, it is never competitive against each other, the competition is with yourself and improving yourself to be the best you. I love that everyone has each others backs.


  • "Both Max and I are loving our J3 Athletics experience! Very constructive, greatly organized, educational. Love how individualized the sessions are. Based on the (mildly) aching muscles the next day, the classes are very effective, too"