The Manchester Marathon is a long-distance running event in Trafford, Greater Manchester, England. It was known as the Greater Manchester Marathon until the word "Greater" was dropped beginning with the (cancelled) 2020 edition of the race. The most recent marathon was held on 7 April 2019, and finished at Old Trafford Cricket Ground. The race was first held in 2012. It is claimed that the race is the flattest marathon course in the UK, with only 54 metres (177 ft) of elevation. The 2013, 2014 and 2015 Greater Manchester Marathon times have been declared invalid after the course was found to be 380m too short.