Relay races are a type of track race in which teams of runners pass a baton to each other in order to complete the race. The term 'RELAYS' refers to the passing of the baton from one runner to the next, and is derived from the Latin word 'relegare, ' which means 'to send back.' Relay races can involve anywhere from two to eight runners, and are often used as a way to build team spirit and camaraderie.