Welcome to the Tanana River Challenge


Thanks for joining us at our 3rd annual event on Saturday, March 14, 2015. Looking forward to planning for next year.

Have you ever dreamed of a mid-March traverse up the frozen Tanana River around Fairbanks? Did that vision also include aid-stations and a party afterwards? The Tanana River Challenge (TRC) is an endurance race which includes runners, skiers, skijorers, and bikers. The race course loops around the mighty Tanana River and Rosie Creek forest; a distance of roughly 45 miles. Racers will enjoy the spring sunshine, the frozen river and the beautiful landscape that is interior Alaska!

New for 2015, we welcomed runners to join the fun and added a 25 mile course open to all categories.

This event is a re-incarnation of the much-loved Equinox Ultra-Ski 100k Challenge which went from Nenana to Fairbanks and run for many years by Audun and Sally Endestad of Fairbanks. We’ve updated it to include more modes of travel, multiple aid stations run by our great volunteers, and have embraced new course routes.


The TRC is part of the Endurance North family of races including the White Mountains 100, Sluicebox 100 and Chena River to Ridge.