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
Grand Prix du Mardi Gras Grand Prix du Mardi Gras The Grand Prix du Mardi Gras was an IMSA GT Championship street race held in New Orleans, Louisiana in 1991, 1992 and 1995. The 1991 IMSA GTP/Lights race was held on June 16, 1991 using a 1.3-mile circuit near the Mississippi River. The winner of 105.3 mile/81 lap race was Wayne Taylor with Geoff Brabham finishing second and Jeff Purner and Tim McAdam finishing tied for 3rd place. On June 14, 1992, the IMSA GTP/Lights street race was moved to a 1.43-mile circuit around the Louisiana Superdome. The winner of 127.27 miles/89 lap race was