Denver Colfax Marathon

The Denver Colfax Marathon is a premier running event held annually in Denver, Colorado, featuring a variety of races including a full marathon, half marathon, urban 10 miler, and a marathon relay. Scheduled for May 17-18, 2025, this event showcases the city's iconic landmarks and offers participants a unique experience, including a mile through the Denver Zoo. The marathon is recognized as a Boston Qualifier and is celebrated for its vibrant post-race festivities, including live music and food.

The event promotes community engagement and charity, making it a favorite among local and visiting runners alike. Visit the organization's website for the most recent information.