Who were the Olympic judges?

Unlike the modern Olympics, judges did not come from all over the Greek world, but were drawn from Elis, the local region which included Olympia. The number of judges increased to 10 as more events were added to the Olympics.
Even though the judges were all Eleans, local Elean Greeks were still allowed to compete in the Olympics. The Elean people had such a reputation for fairness that an Elean cheating at the Games was a shock to other Greeks.