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.

Race information

50 km
50k
21 km
1/2 Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

At Smith Rock near Bend on November 8 and 9, 2025, Run The Rock offers a scenic, technical 50K and a hilly half marathon on rugged single track. All finishers get a custom award and proceeds benefit the local high school team.

UTMB Index

Incline Vista on Cline Butte near Redmond OR offers sweeping Cascade and Smith Rock views. Pick a summit focused 20 mile challenge or a scenic 15K with runnable stretches and rocky sections for a memorable trail day.

Run the Peterson Ridge Rumble near Sisters Oregon on April 12 2026 with 40 mile, marathon or 20 mile trail options across scenic ridge trails. This community fundraiser supports Sisters High School cross country and Sisters Trails Alliance.

Run the scenic single track trails around Sisters, Oregon with options of a 50K or Half Marathon. Enjoy Cascade peak views, post race food and beer, and support the Ridgeview High School cross country team.

Run under the stars at Cline Buttes in Redmond, Oregon with overnight options from a 5K to a 12 hour and Last Person Standing format. Challenging 3 mile loop climbs Cline Butte; proceeds support Mountain View High School XC.

Smith Rock Classic is a spring trail race at Skull Hollow near Terrebonne, Oregon offering 10 Mile, 50K and 50 Mile courses through scenic Smith Rock. All finishers receive a custom award and post race food and beer.