What was the final race ran by the man won the the men's Great North Run in 2015?
2015 Great North Run: The 35th Great North Run took place on 13 September 2015 in Newcastle-upon-Tyne, England, United Kingdom with the men's and women's elite races and wheelchair races. 2015 Great North Run:  World 5000 metres and 10,000 metres champion Mo Farah won the men's race for the second year in a row. Mo Farah: Sir Mohamed Muktar Jama "Mo" Farah, {'1': ", '2': ", '3': ", '4': "} (Somali: "Maxamed Mukhtaar Jaamac Faarax" ; born 23 March 1983) is a British distance runner. Mo Farah:  In 2017 he indicated his intention to switch wholly to road racing following victory at his final track race, the 2017 IAAF Diamond League 5000 metres final.
2017 IAAF Diamond League 5000 metres