The Virgin London Marathon was first held on 29th March 1981 and is now shown on television in more than 150 countries around the world. There have been nearly 1 million runners who have taken part in the race.
A fast and flat course that starts in Blackheath. Runners head east through Charlton and Woolwich for 3 miles before turning west and passing the iconic Cutty Sark in Greenwich after 6 to 7 miles.
The route continues over the River Thames via Tower Bridge and then loops around the east end of London, past Canary Wharf in Docklands and then along the Highway and the Embankment to Parliament Square, Birdcage Walk and the final corner in front of Buckingham Palace.