Pausanias guides us along the numerous statues at Olympia:
Near the statue of Kleogenes there is one of Deinolochos, son of Pyrros, and one of Troilos, son of Alkinos. Both are from Elis, but they did not win victories in the same event. Troilos was hellanodikes and at the same time won the race of the two-horse chariots for full-grown horses and the one of the four-horse chariots for foals. This happened in the 102th olympiad (372 BC). Since then the Eleans had a law that no horse of a hellanodikes could ever compete. His statue is made by Lysippos.
Pausanias’ books about Elis