 Like most other sports, horse racing is run on an All Ireland basis, so Horse Racing Ireland is responsible for racing in both the Republic of Ireland, which has 24 racecourses, and in Northern Ireland, which has two racecourses.The remit of the British Horseracing Authority does not extend to Northern Ireland.HRI was founded in 2001, succeeding the Irish Horseracing Authority, the 1994 successor to the Racing Board founded in 1945.