Three Sisters Skyline

Sisters, United States • 20 Sep 2025

The Three Sisters Skyline is a trail running event held in Sisters, Oregon, featuring two race distances: a 50K and a half marathon. The 50K course offers stunning views of the Three Sisters and other Cascade peaks, traversing single-track trails through Ponderosa Pines, alpine meadows, and areas recovering from a 2012 forest fire. It includes a steady climb of about 2,300 feet followed by a descent, totaling 3,700 feet of climbing and 4,700 feet of descent, with three aid stations. The half marathon is a point-to-point race with a net downhill of 1,500 feet, mostly on single-track trails, designed for fast times and scenic vistas. Both races finish in the mountain town of Sisters. Visit the organization's website for the most recent information.

Race information

UTMB 50K
50 km
3700 m+
50k
13 mi
500 m+
1/2 Marathon
Visit the organization's website for the most recent information.
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