Platte River Half Marathon & Relay

This Platte River Half is held annually in Littleton just outside of the Denver Metro area. Registration for our upcoming 2024 event on Sunday, April 14th is now open for the half-marathon and relay race.

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.