Karl Sanft

Mark Mastrov becomes interim CEO of 24 Hour Fitness after Karl Sanft's departure.

The gym chain said Wednesday that founder Mark Mastrov—who scaled the business from a single club to 420 locations and 4.5 million members before selling it in 2005 in a deal valued at more than $1.6 billion—is returning

24 Hour Fitness is taking personalization to a new level inside its clubs heading into the new year.

24 Hour Fitness hosts free gym party nationwide on August 25

24 Hour Fitness secures $305M credit facility from TCW Group affiliates

24 Hour Fitness awards $1,000 to coaches at San Diego Wave match.

24 Hour Fitness partners with Action for Healthy Kids nationwide.

The fitness and wellness landscape has changed considerably since the pandemic, but there’s still no month like January.

Gyms provide support to Los Angeles residents affected by wildfires

In August, 24 Hour Fitness launched its newest loyalty program, FitPerks, which motivates members towards greater physical activity through points and rewards.

For Karl Sanft, leading 24 Hour Fitness is the job of a lifetime.

Boardroom, Kevin Durant and Rich Kleiman’s sports and entertainment media brand and 24 Hour Fitness have teamed up to cultivate engagement and create content for community organizations and 24 Hour Fitness members.

Like many others in the fitness industry, 24 Hour Fitness has conducted a round of layoffs in light of the economy.

Special Strong partners with 24 Hour Fitness to serve 1,500 adaptive clients.

NUTRISHOP and 24 Hour Fitness expanded their partnership to create a joint e-commerce site for Nutrishop wellness products, available online for sale to club members and guests.

iCRYO partners with 24 Hour Fitness to provide full-body wellness services to 24 Hour Fitness members, expanding its reach in the health and wellness industry.