London Duathlon

Richmond Park, London
Charity challenges

Get your own place

  1. Sign up at the London Duathlon website
  2. Get a sponsorship pack from us
  3. Get set and go!

Get a charity place

Register for a £20 charity place through us when you pledge to raise a minimum of £400 in sponsorship.

Apply here

Got a place already?

Request a sponsorship pack and join our team. 

Help out on the day

Join our dedicated event team to support our participants on the day.

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 suites 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.   

Charity Places Availible soon. 

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.

Did you know…

Completed the first UK trials of a new generation of highly targeted cancer drugs, known as PARP inhibitors, for people with breast and ovarian cancers caused by inherited gene faults. 

Support for you

Training plans and advice

We've teamed up with the experts to give you the very best training support and advice for your event.

Get a cheering pack

Our pack includes a banner, clapper boards, cheering sticks, balloons, tattoos and running sacks. To get yours, email or call 0300 123 5461.

Set up a JustGiving page

Practical fundraising help

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