What is the age cut off for Teenage bodybuilding? The age limit to compete in Teenage Bodybuilding is 19 & under. For clarification this limit is 19 years & 364 days. By admin|2021-04-08T14:27:32+01:00January 4th, 2019|Comments Off on What is the age cut off for Teenage bodybuilding? Share This Story, Choose Your Platform! FacebookTwitterWhatsAppPinterestEmail