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J3 Athletics

5.0

About this business

Location details

7 Hyde St, Stamford, CT, 06907, United States

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WeekdayScheduleStatus
Mon5:15 a.m. to 7:30 p.m.
Tue5:15 a.m. to 7:30 p.m.
Wed5:15 a.m. to 7:30 p.m.
Thu5:15 a.m. to 7:30 p.m.
Fri5:15 a.m. to 6:30 p.m.
Sat8:00 a.m. to 9:00 a.m.
SunClosed
5.0124 reviews
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Morgan Stonebridge's profile image
Morgan Stonebridge 
2 days ago

I've been a member of J3 for almost 2 years, and for the past year I've been participating regularly, and it's been a game-changer! What I love most is the variety—every class is different, which keeps things fresh and challenging. I need structured classes to stay motivated, and J3 delivers exactly that. Weight lifting was new to me, but the personal coaching has made a huge difference—my form is improving, and I’ve already increased the weight I can lift. Additionally I joined the nutrition program and lost over 11lbs and ... read more

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Lucia Cagnasso's profile image
Lucia Cagnasso 
a week ago

I’ve never been a gym person—but this place completely changed that for me. What really makes the difference is the class format. Every session feels structured, engaging, and different, so it never gets boring. The variety of workouts keeps me motivated and challenged in the best way. The class sizes are smaller, which makes a huge impact. The coaches are incredibly attentive—they actually watch your form, correct you when needed, and make sure you’re doing each exercise safely and effectively. Another thing I really apprec... read more

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Connie Lynch's profile image
Connie Lynch 
a month ago
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Michal Nawrocki's profile image
Michal Nawrocki 
a month ago

The best gym in Stamford 

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Thorben's profile image
Thorben 
2 months ago

I visited Stamford for a week and was lucky enough to work out at J3 Athletics. It was a fantastic experience with a great atmosphere. Here are a few things that stood out: The programming: Is super fun and diverse, covering everything from stability and strength to HIIT, all with great warm-ups. The coaching: James is an incredibly attentive coach. He pays close attention to form to ensure you are performing the exercises correctly and offers scaling options if a movement is too technical. The facility: The gym has all the ... read more

Frequently asked questions about J3 Athletics

How is J3 Athletics rated?

J3 Athletics has a 5 star rating with 124 reviews. 

When is J3 Athletics open?

J3 Athletics is open now. It will close at 6:30 p.m. 

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