Discover fitness events & pop-ups happening all across St. Louis using this calendar!  This page will be updated regularly with new listings, so check back weekly or get on the email list for a weekly drop.  Hosting an upcoming event?  Add your listing here! 

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Events for March 21, 2026

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Shred415 + Lululemon: FREE Complimentary Workout

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1701 S Lindbergh Blvd 1701 South Lindbergh Boulevard, St. Louis

Join us Saturday 3/21 from 8-9 AM for a free HIIT workout taught by Shred415 Come to the Plaza Frontenac lululemon to sweat it out with a complimentary workout featuring Shred415. Prepare for a body weight HIIT-style workout with light cardio, no weights needed. Requirements: your own mat, water, and beast mode energy!

Free

Kick into Spring with FREE Martial Arts for Kids

Lyndell Institute 515 Huber Park Court, Weldon Spring

Come join us at Lyndell Institute to kick into Spring with a FREE Martial Arts class for kids! Kick into Spring with Free Martial Arts for Kids at Lyndell Institute! FREE EVENT FOR THE COMMUNITY! Join us for an exciting and empowering start to the Spring season! We're offering a FREE martial arts class for...

Free