Devil on the Divide 50K

The flagship event is a point-to-point course that climbs 6,500 feet, reaches a high point of 13,200 feet along the Continental Divide, and keeps 80 percent of its miles above 10,000 feet - making it the highest 50K in Colorado and likely the highest in the United States. The entire course is on dirt, with the majority on singletrack trail. The race requires prior ultra experience to register, and cuts close to 350 participants total across both distances. It has developed a tight-knit community of repeat runners and long-tenured volunteers, and the 2025 edition sold out entirely. It's held each September to take advantage of Colorado's late-summer alpine window before early-season snow arrives.