The Great Manchester Run is an annual run through Greater Manchester. It has consisted of a 10k run since it was established in 2003, and a half marathon since 2017. The 10k race is the largest of its type in Europe. Usually held in mid-May, it is the third-largest mass participation running event in the United Kingdom, behind the Great North Run and the London Marathon. It is part of the Great Run series of road races in the UK. It was formerly sponsored by Bupa (2003–2014) and Morrisons (2015).