The sport associated with an event called the "Decathlon" is athletics. This event comprises ten track and field disciplines, including sprints, hurdles, throws, and jumps, which test an athlete's overall athleticism and versatility. Typically held over two days, the Decathlon is a grueling test of endurance, skill, and technique. Athletes accumulate points based on their performances in each event, vying for the title of the best all-around athlete. The Decathlon captures the essence of athletics and showcases a competitor's broad skill set, making it one of the most challenging and respected events in sports.