The Longest Day is a race in Greenville, South Carolina, organized by Fleet Feet. It offers four distance options: 100K, 50K, marathon, and half marathon. This selection allows runners to choose anything from a familiar long-distance race to an ultramarathon that can occupy most of a day.
The name references The Longest Day, the war film about the D-Day landings, which was based on Cornelius Ryan's nonfiction book. The movie ran nearly three hours and featured a large international cast, including some actors and consultants with direct wartime experience.