A triathlon's a multi-sport endurance event consisting of swimming, cycling, and running in immediate succession over various distances. Triathletes compete for fastest overall course completion time, including timed "transitions" between the individual swim, bike, and run components. Transition areas are positioned both between the swim and bike segments (T1), and the bike and run segments (T2), and are often just one checkpoint, especially in shorter courses. These areas are used to store bic… (More on Triathlon)