The decathlon is a combined event in athletics that consists of **ten track and field events**. It includes a range of disciplines such as the 100 meters, long jump, shot put, high jump, and several others, culminating in the 1500 meters run. Competitors accumulate points based on their performances in each event, and the athlete with the highest total score at the end of all events is declared the winner. The decathlon is often seen as a test of overall athletic ability since it incorporates speed, strength, and endurance.