What is a duathlon?
The London Duathlon, the world's biggest, will take place in Richmond Park on Sunday 5 September 2021.
A duathlon consists of three sets of athletic activity, but across two disciplines – running and cycling. The first set consists of running, followed by cycling, and then back to running. The distances of each activity vary according to the challenge entered. Similar to a triathlon, you will go through transition to change between disciplines.
There are three individual challenges and one team challenge in the London Duathlon:
Learn more about the two disciplines: