MX3 Fitness

MX3 Fitness

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Gyms in San Francisco's Castro, Noe Valley, Lower Haight and Mission, as well as Sonoma. Personal Training, Monthly Memberships and Classes. Voted Best in SF.

Voted Best of the Bay. Castro & Lower Haight gyms in San Francisco. Monthly memberships and certified personal trainers. Day passes available. Weight Loss, Strength Training.

07/17/2026

We are so blessed to have the support of so many people. It really makes owning a gym and being part of a community such an enriching experience.🙏

07/17/2026

Can’t wait to meet these little wiggly puppies!

We're super excited about our Dog Pop-Up adoption event at MX3 Fitness this Saturday! Come by and find the pup that's just right for you. 🦮

🗓 July 18
🕘 9 to 11am
📍19310 Sonoma Highway in Sonoma (the old Bowling Alley)

Take a preview peek at our loving dogs looking for homes 👀
➡️ https://www.petslifeline.org/adopt-adoptable-canines

07/15/2026

We are thrilled to join our friends at Pets Lifeline of Sonoma Valley to co-host a Dog Adoption Pop Up in Sonoma this Saturday, July 18 from 9 am to 11 am. Come by and find the pup that's just right for you! And you can meet our gym dog Liz (no autographs, please). ARF! 🐶

07/15/2026

Chris Jones and Anne Hart are having too much fun. Goooooo!

07/11/2026

SCP: Strength+Cardio+Pilates Class today. Spotted! Reggie Aqui Philip Heuring Andrew Noyes Stevi Hanson Lisa Corsello

07/08/2026

More Space & Light: The big change upstairs in the Sonoma cardio room.

07/07/2026

Y’all wanted key tags for entry in Sonoma. Done and done. Get in here to grab one.

07/04/2026

Happy Independence Day from Liz and everyone at MX3 Fitness! 🇺🇸

07/03/2026

Meet the Founder: Glenn Shope started MX3 Fitness after a career in tech as a programmer and start-up entrepreneur. Realizing he wanted to do something more fulfilling helping people, he started independent training at Fitness SF in 2013, tapping into his experience as an athletic training asst. at Carleton College. Three years later, he opened a tiny training studio in San Francisco’s Lower Haight. The rest, as they say, is history, with the opening of his fifth gym in Sonoma. Glenn’s favorite food is coffee. Glenn’s favorite song right now is “Where the hell is my husband?”

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Location

Telephone

Address

2336 Market Street
San Francisco, CA
94114

Opening Hours

Monday 7am - 8pm
Tuesday 7am - 8pm
Wednesday 7am - 8pm
Thursday 7am - 8pm
Friday 7am - 8pm
Saturday 6am - 8pm
Sunday 6am - 8pm