Prix Jean Prat metres. For a period it was held in April, and it served as a trial for the Prix du Jockey Club. Both Prix Biennal races were renamed the Prix Jean Prat in 1940. This was in memory of Jean Prat (1847–1940), a successful racehorse owner and breeder. The version for three-year-olds was switched to late May or early June in 1961. It was shortened to 1,850 metres in 1962. It was transferred to Chantilly and cut to 1,800 metres in 1967. The present system of race grading was introduced in 1971, and for several years the event held Group 2
South Australian Jockey Club (2500m) and the Group 1 Australasian Oaks (2000m). The following is a list of group races, which are conducted by the South Australian Jockey Club (SAJC). South Australian Jockey Club South Australian Jockey Club is the principal race club in South Australia, Australia. The first horse racing events in South Australia took place at a well-attended picnic meeting held over 1 and 2 January 1838. In August 1838, riding his grey gelding "Charley", Fred Handcock won the first steeplechase event ever held in South Australia. Various racing events (including match races) continued throughout the 1840s, but without a regulating body.