Course & Elevation
The Bolder Boulder courses from the University of Colorado campus down Flagstaff Road with scenic mountain views of the Flatirons, then through downtown Boulder with its iconic Pearl Street Mall finish. The race features a net downhill elevation profile with rolling terrain through residential neighborhoods and parks.
Course Facts
📈 Elevation Profile
📊〰️
Interactive elevation chart coming soon
287m total gain • Rolling profile
🗺️ Course Map
🗺️
Interactive course map coming soon
Boulder, United States • 21.0975km road
🌤️ Weather on Race Day
🌡️
18°C
Temperature
💧
45%
Humidity
🌧️
15%
Rain Chance
📝
Late May in Boulder offers pleasant spring weather with cool mornings and mild afternoons. Altitude of 5,430 feet can affect sea-level runners during acclimatization.
Get Your Training Plan
Free, personalized for this race
Get race tips & guides in your inbox
Race tips, training guides, and the latest from 500+ races worldwide.