In his career Greg LeMond won the Tour de France three times (1986, 1989, 1990) and twice won the World Road Race Championship (1983, 1989).

As a teenager in Nevada, LeMond was an avid skier and first took up cycling as a way to keep fit during the warmer months. However, his talent on the bicycle was obvious, and he soon competed in junior events. He planned to participate in the 1980 Moscow Olympics but, after the United States announced it would boycott the Games, he turned professional, joining the French team Renault.

Bernard Hinault, the legendary French cyclist, rode with LeMond on both the Renault team and later the La Vie Claire team and was instrumental in teaching LeMond the strategy and mental toughness necessary to win at the sport's highest levels. In 1983 LeMond entered his first Tour de France, finishing third, and a few months later won his first world championship. At the 1984 Tour de France, LeMond deferred to his teacher, Hinault, and finished second while aiding the Frenchman to a historic fifth Tour title. The following year LeMond defeated Hinault to win his first Tour de France.

In 1987 LeMond was shot and nearly killed in a hunting accident. Although emergency surgery removed buckshot from his liver, kidneys, and intestines, two pellets remained in his heart lining and nearly 30 in his back and legs. After an abortive comeback in 1988, he regained top form for the 1989 Tour de France. On the last day of the three-week race, LeMond was in second place, trailing Frenchman Laurent Fignon, by 50 seconds before a 24.5-km (15-mile) time trial. LeMond finished 58 seconds faster than Fignon and won the Tour by 8 seconds, the smallest margin of victory in the history of the event. The following year he defended his title.

LeMond was an exceptional all-around cyclist who excelled at both climbs and time trials. He also pioneered such technological innovations as aerodynamic handlebars and helmets and, by signing the first million-dollar contract in 1985, raised the general salary level in the sport.

In 1994 LeMond retired from competitive cycling after being diagnosed with a rare cellular disorder, mitochondrial myopathy, which sapped his endurance.