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Join Team CRUK today and Run / Bike / Run in the world's biggest duathlon, set in stunning Richmond Park, London.
The Descente London Duathlon is a run-bike-run event offering athletes of all abilities the chance to race through the stunning surroundings of Richmond Park while on completely closed roads.
Don’t feel ready for the full Duathlon experience? Then why not try the Descente RUN10, London's newest 10k run which takes place on the same day.
Choose the distance that suits you:
Duathlon (59km) - 10km – 44km – 5km
Half Duathlon (32km) - 5km - 22km - 5 km
Duathlon Relay (59km) - 10km – 44km – 5km
Ultra Duathlon (107km) - 20km - 77km - 10km
Join our team, wear our jersey and let’s beat cancer sooner.
Race day information
Join us for this unique experience and we’ll support you all the way. We have everything from training to fundraising tips. And will ensure that this is an experience that you’ll never forget. Any questions? Click here to read our most frequently asked questions, which should provide you with all the information you need. Or, you can contact the Sports Team on 0300 123 5461.