Colorado Runner - Colorado's running news, events and results source

Denver welcomed over 25,000 runners to the Mile High for the city’s largest running event of the year.

The Bolder Boulder started in 1979 as a small local race with a few thousand people joining together to celebrate Memorial Day. Forty-five years later, the race has attracted more than 1.6 million people to walk, jog and run.

What if I told you a big secret that helps you feel good, smile more, and maybe even live longer? This secret isn't hidden anywhere; it's called fitness. That means moving your body in fun ways like walking, dancing, or riding a bike.