Tanana River Challenge
- Running
- 72 km
- 40 km
- Trail Run
- 72 km
- 72 km
- 40 km
- 40 km
- Mountain Bike
- 72 km
- 40 km
The Alaska Endurance Trail Run will take place over the weekend of June 6-7, 2025. It marks the ninth year of this exciting event.
The race will be held at the ski hut near the parking lot behind the International Arctic Research Center at UAF, located at 930 Koyukuk Drive, Fairbanks, Alaska.
The main course features a roughly 6-mile loop through the scenic trails of the University of Alaska Fairbanks (UAF) West Ridge, offering a mix of gravel, grass, roots, and forest duff. The trails are well-maintained and pass through beautiful wooded areas and open fields, ensuring a captivating experience for all runners.
Registration closes on June 2, 2025, at 11:59 PM AK. Prices are as follows:
Participants aged 12 to 17 are welcome to race but must be accompanied by a parent or guardian at all times.
For questions regarding results or registration, please use the provided contact form.
24hrs Registration | $92.81 | See |
12hrs 8 PM Registration | $60.93 | See |
12hrs 8 AM Registration | $60.93 | See |
6hrs 2PM Registration | $45.00 | See |
6hrs 8 AM Registration | $45.00 | See |
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