Purebred Arabians have excelled in open events against other breeds. One of the most famous examples in the field of western riding competition was the Arabian mare Ronteza, who defeated 50 horses of all breeds to win the 1961 Reined Cow Horse championship at the Cow Palace in San Francisco, California. Another Arabian competitive against all breeds was the stallion Aaraf who won an all-breed cutting horse competition at the Quarter Horse Congress in the 1950s. In show jumping and show hunter competition, a number of Arabians have competed successfully against other breeds in open competition, including the purebred gelding Russian Roulette, who has won multiple jumping classes against horses of all breeds on the open circuit, and in eventing, a purebred Arabian competed on the Brazilian team at the 2004 Athens Olympics.