The London Marathon is one of the biggest distance-running events in the world, bringing together people of all ages and abilities on one course.

Such an epic 26-mile undertaking means that entrants need all the support they can get, and thanks to advances in technology it’s now a great deal easier to track your friends’ progress than it was back in 1981, when the Marathon was born. 

So whether you’re at home, on the go, or spectating around the course, here are a few tips on how to follow your runners throughout the day. 

Official app and online tracker

Last year saw the Virgin London Marathon run its own app for the very first time, to make it easier for friends and family of participants to track the race as it progresses. 

That service will run again this year, and the tracking facility is accessible via the official website – though it is currently inactive, pending the race start.

The app still appears to be only available on iPhone, so Android users will have to head online or use other running apps.