Man running through London

Royal Parks Half Marathon

A hugely popular half marathon through four of London's beautiful Royal Parks.

Everything you need to get started

Location: London
Event date: 12/10/25
Register by: 31/08/25
Registration fee: £30
Min. sponsorship: £365

Are you ready to take on one of London's most famous half marathons? With closed roads and a chance to take in four of the capital's famous parks? Help us reach the finishing line. Let’s finish cancer together.

Take part in the Royal Parks Half Marathon, Britain’s most beautiful city run, and help us transform the future of cancer treatment. Join #teamICR today.

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Why join #teamICR?

The vital funds that you raise by running with #teamICR will help us deliver our innovative programme of cancer research. Together we can reach the finishing line.

Find out more about how our appeals for cancer research help patients live well with cancer.

What to expect from Team ICR

Regardless of the place you hold, we promise to support you all the way and get you to the finish line. We’ll be on hand to support you each step of the way. As part of #teamICR, you will receive:


An ICR running vest or technical t-shirt

A fundraising pack with tips on reaching your target

Advice on training, nutrition and health

ICR branded materials to support your fundraising

Support from our dedicated events team throughout your training

Lively and enthusiastic encouragement from our cheer squad on the day

How to join our team

If you have secured your own place directly through the organisers, we would love you to join our team. Please get in touch to let us know you have secured your place and submit a copy of the event entry. You will receive the same support and we just ask that you raise as much as you can. 

Stay in touch

Get in touch with us on 020 3437 6388 or email [email protected].

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Start fundraising

Get in touch with us on 020 3437 6388 or email [email protected].


Sign up to our e-newletter Search.


Follow us on Facebook, Twitter and Instagram