The Speed ProjectThe Speed Project is an unsanctioned 340-mile running relay, which starts in Los Angeles and finishes in Las Vegas. It since has expanded to include events in Europe and South America.HistoryThe race began in 2013, when Nils Arend and five friends - three other men and two women - ran the route as a relay. In 2020, race organisers started accepting solo entries. In November 2023, they held an event in the Atacama Desert, with the finish line at San Pedro de Atacama. In 2024, they started a European edition of the challenge, called The Speed Project CHX, where teams run from Chamonix to Marseille.Notable entrantsThe event attracts professional athletes, with British runner Anya Culling taking part in 2024.