The sport that entails a combination of running, biking, and swimming in a single event is known as the triathlon. This challenging competition includes three distinct segments: a swim, followed by a bike ride, and finishing with a run. Triathlons vary in distance, with events such as the Ironman and Olympic distance being the most popular. Participants need significant endurance and skills in all three disciplines, requiring extensive training and preparation to excel in each phase of the event.