The Sheffield Half Marathon is an annual half marathon held in Sheffield, England. It was started as a marathon in 1929 for two years, with a half marathon run at the same time. It restarted again 1946 after the Second World War. In 2003 it was reduced to a half marathon and 3-kilometre fun run. Moving from Hillsborough in 1991, the race started and finished at Don Valley Stadium, the stadium where Jessica Ennis trained, until the stadium's closure was announced in 2013. The race is gold graded by UK Athletics. The 2010 Marathon was held 25 April.