The most grueling endurance ski race in the world, the 12th Annual Gulfstream 24 Hours of Aspen, will bring 11 male teams from 10 countries to race for 24 continuous hours. The race is unique not only because of its length, but also because team members race at the same time, drafting off one another at speeds up to 90 mph.
Teamwork is critical as no individual titles are awarded.
However, an individual racer may continue to race if their partner has dropped out, but will not receive an official placing. This year, three of Aspen's sister cities will be represented-Davos, Switzerland, Queenstown, New Zealand and Chamonix, France.