Little Miami Half Marathon - 2025

Colorado Runner Events is an event management company serving metro Denver. Whether you are a walker, beginner, weekend warrior, or an elite, we have races to help you perform your best. We currently produce seven events with more than 10,000 participants annually. Our passion for running, biking, and triathlons is transparent with each race that we produce. We aim to provide a unique experience in an unforgettable setting.