The London Marathon is the most popular marathon on the planet. If you want to join the 1.25 million people to have completed the course since 1981 here’s how: When does the London Marathon take place in 2025? Next year’s London Marathon will take place on Sunday, April 27 2025. How do you sign-up? You can apply for a London Marathon place by entering the public ballot, which is open to marathon hopefuls from around the world. Everyone is then given the same chance at a place as runners are drawn at random so it is simply, say organisers, about the luck of the draw. When does the ballot open? …