Tanana River Challenge

Tanana River Challenge takes place in Fairbanks, Alaska, on March 20, 2027, and offers each of its two distances, 45 miles and 25 miles, in three disciplines: running, mountain biking and cross-country skiing. Start times are not listed in the available data.

Interior Alaska in March means racing long distances in cold conditions, and that shapes everything. Layering you can adjust on the move matters more than raw speed, hydration systems need protection from freezing, and even the 25-mile run is a full day's effort rather than an ultra you can rush. Build with long, slow sessions on similar surfaces and practice eating while cold, since appetite drops sharply in low temperatures. Choosing between run, bike and ski also makes this a workable event for a group with different backgrounds.