What prizes did Olympic victors get?

A victor received a crown made from olive leaves, and was entitled to have a statue of him set up at Olympia.

Although he did not receive money at the Olympics, the victor was treated much like a modern sports celebrity by his home city. His success increased the fame and reputation of his community in the Greek world. 

It was common for victors to receive benefits such as having all their meals at public expense or front-row seats at the theater and other public festivals. One city even built a private gym for their Olympic wrestling champion to exercise in.