The 2025 event has concluded.
Colorado Fall Equinox Marathon
Fort Collins, CO, USA • September 14, 2025
























Partly cloudy throughout the day with rain clearing later.
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.
One of the best races in Colorado! Enjoy the Wild & Scenic beauty of the Poudre River Canyon on a point-to-point downhill course. Source