Horse racing and chariot racing were the most prestigious competitions in the games, due to only the wealthy being able to afford the maintenance and transportation of horses. These races consisted of different events: the four-horse chariot race, the two-horse chariot race, and the horse with rider race, the rider being hand picked by the owner. The four-horse chariot race was the first equestrian event to feature in the Olympics, being introduced in 680 BC. It consisted of two horses that were harnessed under a yoke in the middle, and two outer horses that were attached with a rope. The two-horse chariot was introduced in 408 BC. The horse with rider competition on the other hand, was introduced in 648 BC. In this race, Greeks didn't use saddles or stirrups, so they required good grip and balance.