How Planet Fitness Muscled Through Temporary Pandemic Closures to Become a Top Franchise Posted byBlaire Briody January 6, 2022 Leave a comment on How Planet Fitness Muscled Through Temporary Pandemic Closures to Become a Top Franchise The affordable exercise chain managed to keep the doors of every single location open in 2021. In fact, it opened dozens more. That how it landed the #7 spot on our Franchise 500 ranking.