Alaska Endurance Trail Run
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Event
The Alaska Endurance Trail Run takes place June 5-6, 2026 in Fairbanks, Alaska. 2026 is the tenth running of the event. It is a timed trail ultramarathon with three time-based race options. The event format measures how far each participant covers within the allotted time. Three races finish at the same time. Minors aged 12 to 17 may participate but must be accompanied on the premises by a parent or designated guardian for the duration of the event. A post-race barbecue and an awards ceremony follow the final finish and results processing.
- 6-hour
- 12-hour
- 24-hour
Course and logistics
The main course is a roughly 6-mile loop on the University of Alaska Fairbanks West Ridge trails. The start area is at the ski hut near the parking lot behind the International Arctic Research Center at UAF, 930 Koyukuk Drive. Trail surfaces include gravel, grass, roots, and forest duff, and the route passes through forested areas, open fields, and meadows. There are no road crossings except for a couple of gravel maintenance roads. A short paved section of about 300 feet near Ballaine Lake can be avoided by running on adjacent gravel or grass. Trails are mildly technical in places, with roots, occasional fallen branches, and some rocks. Depending on spring breakup and rain, some soggy spots may occur. Visit the organization's website for the most recent information.
