Platte River Half Marathon and Buckhorn Exchange Relay Littleton, CO   Apr 13, 2025

Welcome to the Platte River Half Marathon & Relay race, one of the most exciting and popular races in the Denver Metro Area! This race is held annually in Littleton, CO. The race starts and finishes next to the beautiful Platte River Trail and adjacent to the popular Breckenridge Brewery campus. Join us for an epic post-race party at the Brewery with food, vendors, live music, and of course beer!

Whether you’re an experienced runner looking to set a new PR, a newcomer looking to tackle your first half-marathon, or a team of runners wanting to run an exciting relay race, join us for a day of adrenaline-pumping running, scenic views, and all-around fun. What’s more, we donate a portion of the proceeds to the Leukemia & Lymphoma Society.