The stadium was built long before the standardization of the dimensions of the athletic spaces, so the racing space and its layout follows the ancient hairpin-shaped model. There once was room for 80,000 spectators in fifty rows of marble staircases, and this number has been limited to 45,000 spectators.
In antiquity, they were used to perform part of the Panathenaic in honor of the goddess Athena. Built between the hills of Agra and Ardittus, in 329 BC, on Lycourgus, the stadium was re-decorated, as until then the seats were wooden. In 140 AD. On Herodes Atticus there was a large-scale refurbishment as well as an increase in its capacity of 50,000 seats. At unknown times of the Middle Ages he had been stripped completely of his marbles, like most of the ancient buildings of Athens. When King Otto declared Athens the capital of the Greek Kingdom in the "artarmaro", only the two quay walls of the fronts to the right and left of the entrance remained as visible ruins of the former stadium.