Longmont's only Half Marathon – now offered in the cooler month of MAY! Join the Half Marathon or 5k distance! Walkers and Runners of all abilities welcome!
Longmont Half & 5k (LM Half)
Distance(s): 5K, Half Marathon
Race Overview: A race coming up on 2026-05-03 in Longmont, CO. Get all the nerdy details below or follow the sign up links to secure your spot today!
Sign Up Here
