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 The #850 Challenge

There are 850 million people living with kidney disease worldwide.  This is not OK. Make 2022 count and join the #850Challenge. Run, walk, jump 850km/miles in 2021 and raise money to give hope to a brighter future for kidney patients.

Take on the challenge

Kidney disease has jumped from the 13th to the 10th common cause of death. Only research can change this.

Join the #850Challenge in 2022 and raise vital funds to stop kidney disease destroying lives. Do it for the challenge. Do it at your pace. Do it for the 850 million people living with kidney disease worldwide.


Throughout 2022

Registration fee: FREE

Sponsorship: £85, £850 or set your own target. Free t-shirt when you raise £50 or more!

As part of #TeamKidney you'll receive...

Sign up for your FREE fundraising pack today!

A FREE t-shirt when you raise £50 or more

A fundraising pack full of tips and ideas

Support from our dedicated team every step of the way

Regular updates to inspire you with training and fundraising

Join our #850Challenge Facebook group to chat to fellow fundraisers, share experiences and get tips throughout the challenge.

Other ways you can get involved...

Ride 100 (1)


Join our #850CycleChallenge, complete 8.5, 85 or 850 miles/km this July.

Aim to raise £85.

Kathryn Croker with her husband Luke and mum Anne and dad Kevin on the charity walk in Rushton


Join our #850StepChallenge, complete 8,500 steps a day, any month you choose.

Aim to raise £85.

London Marathon Team Kidney

Do your own fundraiser

Raise £85 or £850 by doing whatever you want to do. Hold a bake sale, shave your head or host your own virtual quiz. Your fundraising, your way!

Tell everyone

Make sure you shout far and wide about your #850Challenge

Don’t forget to tag us in any photos on social media so that we can see how you're getting on.

What are you doing?

Tell us what you're doing for your #850Challenge and get a FREE fundraising pack full of tips and ideas.

Share it on social

Tell all your friends and family that you're stepping and fundraising to end kidney disease.

Frequently asked questions

Got a question? Get in touch

If you have a question or would like to chat about one of our events, the team here at Kidney Research UK are happy to help. Please get in touch.

0300 303 1100

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