Thousands of runners will take to the streets of Newcastle today to run the 13.1 miles to South Shields.
Many will take in the 35th Great North Run today in aid of charity, raising millions of pounds in the process.
Here are ten facts about the Great North Run
1. The Great North Run is the largest half marathon in the world
2. The first Great North Run was staged on 28 June 1981, when 12,000 runners participated
3. A total of 57,000 runners have got places for this year’s Great North Run.
4. Martin Mathathi holds the current men’s course record with his run of 58:56 minutes in 2011.
5. Mary Jepkosgei Keitany’s women’s course record of 65:39 minutes, was set in 2014.
6. Celebrities taking part in this year’s run include Professor Brian Cox, James Cracknell, and Terry Deary.
7. For the first nine races, eight of them were held in June. Since 1990, the race has instead been held in the autumn, usually in September.
8. The race has been started by famous faces including Sir Bobby Robson, Ant and Dec and Mo Farah.
9. The 1,000,000 bib number will be worn my millionth Great North Run winner Tracey Crammond this year.
10. The run will be televised live on BBC one from 9.30am until 1.30pm with highlights on BBC Two at 6pm.