Underground Fitness is a state-of-the-art gym in Stamford, CT, offering a diverse range of fitness classes and equipment for all skill levels. We focus on providing a motivating and safe environment for individuals seeking to improve their physical health.
Operator computes a Health score every night at 2 am HST. It's the one number that tells you if this shop is winning, losing, or steady. Here's how Underground Fitness broke down on Apr 26, 2026.
Underground Fitness is indexed in Operator's Gym market index for Stamford, CT.
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The Gym shops Underground Fitness competes with most often, ranked by Operator's health score. Tap any row for that shop's full page.
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