Born in New Hampshire, Cook lost his right leg in 1988 in a farming accident. After his recovery, Cook decided to become a competitive skier.
In 2002, Cook won a U.S. record four medals (all silver) in cross country skiing during the 2002 Paralympic Winter Games in Salt Lake City. In 2005 he won two gold medals and a bronze to win the Disabled World Cup title at Fort Kent, Maine, in the Disabled World Championships that doubled as World Cup races.
In 2007, Cook retired from racing. Working at the National Ability Center in Park City, Utah, Cook helped develop a Nordic skiing program for disabled athletes. He later worked with the Park City Junior Nordic Ski Team. In 2014, Cook became Head Coach and Junior Program Director of the Utah Nordic Alliance.[2]