The route changes each year depending on road works, obstructions and annual alterations to footpaths and bridleways.
The confirmed route and stage summary is sent out 3 weeks prior to the event.
30% of the route is off road
40% of the route is on roads or country lanes
20% of the route is on pavements
10% of the route is along canal paths
So how far do you each have to run?
The 24 stages vary in length from 2.9 miles to 12.5 miles.
There are 10 stages less than 6 miles (10km).
There are 10 stages up to 10 miles (16km).
There are 4 stages over 10 miles (16km).
THE 'TUBE MAP'
The diagram below shows the different checkpoint locations and stage distances. The route varies slightly every year but this is a good representation of what to expect.
All stages vary in length, terrain, ease of navigation and time of day. This summary below gives an approximation of these stages for an average team.