The sport featuring the events of a triathlon is triathlon itself. A triathlon consists of three disciplines: swimming, cycling, and running, performed in succession. Participants must complete each leg of the event in a set sequence, typically starting with swimming, followed by cycling, and concluding with a running segment. Triathlons vary in distance, with popular formats including the sprint, Olympic, half-Ironman, and Ironman distances, attracting athletes of all skill levels and promoting endurance, versatility, and resilience.