Just as the oracle had prophesized that King Acrisius of Argos would be killed by a grandson, so it had told Oenomaus that he would be killed by a son-in-law. To prevent his daughter ever marrying, the king challenged every applicant for her hand to a chariot race, the loser to forfeit his life. Oenomaus was the finest charioteer in the land: so far, the heads of more than a dozen hopeful young men adorned the wooden stakes that fenced the racing field. Hippodamia was very beautiful, Pisa was very rich, and the suitors kept coming.