An Ironman triathlon is a long-distance race that consists of three segments: a 2.4-mile swim, a 112-mile bike ride, and a 26.2-mile run. Athletes must complete all three parts in a specific order and within a set time limit, typically 17 hours. These events are held worldwide and attract both professional and amateur athletes. Training for an Ironman requires significant dedication, as participants often spend months preparing to build endurance and strength for the challenging course. Completing an Ironman is considered a major achievement in the world of endurance sports.