Alaska Endurance Trail Run

Fairbanks, United States • 4-5 Jun 2027

Alaska Endurance Trail Run

The 2027 Alaska Endurance Trail Run is the 11th running of this trail ultramarathon event, held Friday to Saturday, 6/4/2027 to 6/5/2027. The event takes place in Interior Alaska on the UAF West Ridge trails and is open to individual runners and walkers.

Race formats are time-based trail challenges rather than fixed-distance races. Available options include:

  • 6-hour trail challenge
  • 12-hour trail challenge
  • 24-hour trail challenge

The event notes the presence of the midnight sun during the race period, so participants do not require headlamps. Race information resources cover course details, aid stations, race rules, and visitor information. Results and past entry lists are maintained for previous years.

Sponsorship for the event includes local businesses such as Zach's Restaurant & Express Room Lounge, Lulu’s Bread and Bagels, and Northern Alaska Tour Company. The event is associated with the Road Runners Club of America.

The presentation focuses on timed trail running on marked trails at a university ridge area in Interior Alaska, with support infrastructure described through separate race information topics. Visit the organization's website for the most recent information.

Race information

12 Hour Trail Challenge
24 Hour Trail Challenge
6 Hour Trail Challenge
Visit the organization's website for the most recent information.
Trail runs nearby

Point to point trail races near Fairbanks, Alaska offering 50 mile and 50K distances on a mix of hard packed and technical ridge trails. The event includes shuttle service, checkpoint drop bag support, and significant elevation change.

A multi-day event in Fairbanks with in-person runs on UAF north campus trails and virtual 5K and 10K options, highlighting conservation of the Arctic National Wildlife Refuge and Indigenous-led protection efforts.

A fall marathon in Fairbanks, Alaska on a 26.2 mile mostly trail course with a 3,300 foot climb up Ester Dome, nine aid stations, and options for a solo run, a timed hike, or a three person relay with three 8 to 9 mile legs.

A neighborhood 5K at The Watershed School in Fairbanks on September 26, 2026 that raises funds for the Watershed School PTSA. A pancake and sausage fundraiser at the school offers a discount for runners with bibs.

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