Timed contests, also known as RACES, are competitions in which participants must complete a task within a certain amount of time. These contests can range from physical activities such as running or swimming, to mental activities such as solving puzzles or answering trivia questions. The winner is usually the person who completes the task in the shortest amount of time. Timed contests are popular in many different sports and activities, and are often used to determine the best competitor in a given field.