San Juan Softie 100
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San Juan Softie 100-mile Ultramarathon
The San Juan Softie is a mountain ultramarathon held in August 2027 near Durango, Colorado. The event is a single distance of approximately 100 miles (the course is listed at roughly 103 to 104 miles) and traverses trail and alpine terrain in the San Juan National Forest and adjoining counties.
The course averages over 10,000 feet in elevation and uses CalTopo for elevation data, showing about 19,000 feet of total climbing and a highest point of 12,438 feet on the Colorado Trail. The route passes by or near named features such as Engineer Mountain, the Wilson group of 14ers, and Lizard Head. A GPX file and maps are provided for navigation.
Runners must carry required safety gear, including a rain jacket, two light sources, gloves, whistle, hat, water capacity, and a cup or bowl. Starting in 2026 satellite trackers are required and trackers with messaging are used for accountability and safety; runners may register their own device or rent one from the tracking provider. All participants must be at least 18 years old.
The event has a network of aid points along the route, listed as numbered aid stations plus start and finish, with a mix of full aid stations offering hot food and basic aid stations. Pacers are allowed beginning at mile 45.5 at the Cross Mountain aid station and at two later stations; pacers must complete a waiver and wear a pacer bib. Prize money is awarded to the top three men and women with cash prizes of $500, $250, and $100. Visit the organization's website for the most recent information.