The 2024 event has concluded.






















Clear conditions throughout the day.
The inspirational memoir from Boston Marathon winner and Olympian Des Linden. Choosing to Run: A Memoir.When you buy through our links, we may earn a commission.
This amazing run course will take you alongside the Boulder Reservoir, remaining mostly on dirt roads and trails. The course is flat with only 200 feet of gain, and will provide views of the Boulder Reservoir and Rocky Mountains. Source