Doomben Racecourse is a horse racing venue in Brisbane, Queensland, Australia. It is located in the suburb of Ascot, 7 kilometres north of the Brisbane central business district. The turf track is 26 metres wide, with a circumference of 1715 metres and a home straight of 350 metres. Races are run in a clockwise direction. The racecourse was inaugurated in 1933 and subsequently was shut down during the Second World War, when it was used by allied troops during the Pacific War. In 1946, when the course reopened, the TM Ahern Cup and the Doomben Cup were held for the first time. The Doomben Cup is now considered to be one of the best middle-distance racing events in the country.