Three Sisters Skyline
Sisters, United States • 19 Sep 2026
Event details
Three Sisters Skyline is set for Saturday, September 19, 2026, in Sisters, Oregon, with the race hub at Village Green Park. The event offers the following distances:
- 50K
- Half marathon
The race is held under a special use permit with Deschutes National Forest and the City of Sisters. Proceeds support Sisters Trail Alliance, a nonprofit that plans, builds and maintains multi-user, non-motorized trails in and around Sisters.
Course and logistics
The 50K runs to the edge of the Three Sisters Wilderness through Ponderosa pine stands, areas recovering from a 2012 forest fire, alpine meadows and a mountain stream. The first 9.7 miles include a steady climb of about 2,300 ft to aid station 1. The course totals about 3,700 ft of climbing and 4,700 ft of descent, is roughly 95% single-track, and includes three fully stocked aid stations.
The half marathon is a point-to-point trail race with a net downhill of about 1,500 ft and about 500 ft of gain. It is about 85% single-track with one aid station at mile 7.1.
Shuttle transport is provided to the start; runners may not be dropped off at the start due to limited parking. Each finisher receives a medal; the top three finishers in female, male and non-binary categories receive prizes. The organizer notes collaboration with the equestrian community and provides guidelines for encountering horses on course. Visit the organization's website for the most recent information.