Alaska Endurance Trail Run
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Event details
The Alaska Endurance Trail Run takes place June 5-6, 2026 and is the 10th running of the event. It is a timed trail ultramarathon where participants race the clock to see how far they can go within a set time. Post-race barbecue and an awards ceremony occur after the race concludes.
- 24-hour race
- 12-hour race
- 6-hour race
Course and participation
The event is held on the University of Alaska Fairbanks West Ridge trails, with the starting area at the ski hut behind the International Arctic Research Center on the UAF upper campus (930 Koyukuk Drive, Fairbanks, Alaska). The main course is a roughly 6-mile loop. 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, and a short paved section of about 300 feet near a bike path around Ballaine Lake; runners can follow gravel or grass alongside that path. Trails are mildly technical in places, with roots, occasional fallen branches, and some rocks. Depending on spring breakup and recent rain, some soggy spots may occur.
Minors aged 12 to 17 may participate but must be accompanied by a parent or designated guardian who remains on the premises for the duration of the event. Visit the organization's website for the most recent information.
