At our private training gyms in the Lower Haight and Castro districts in San Francisco, our team of experts develops comprehensive fitness programs built around science, driven by personalized data and analysis to deliver real results. Our personal trainers will provide you with the tools you need – both in-gym and online – to be fit for the long term. We understand just showing up isn’t enough. You and your training partner need to be engaged, informed, and driven to reach your goals.

Why MX3 Fitness