The IAAF World Relays is an international athletics competition organized by the World Athletics federation. It features teams from various countries competing in relay races, showcasing speed and teamwork. The event includes various relay formats, such as the traditional 4x100 meters and 4x400 meters, as well as innovative races like the mixed-gender relays. First held in 2014, the IAAF World Relays aims to promote the sport of athletics and provide a platform for nations to compete in a unique format. The event is typically held every two years, attracting top athletes from around the world to participate in thrilling relay races.