Chiltern 50 Challenge 2023

Event type: Walk, Jog, Run
Date: 23rd September 2023
Location: Chiltern
Registration fee*: £15-£129
Fundraising target*: £135-£395
*Depending on signup option + distance

Join the team

Choose a charity sponsorship place and get 50% off your registration fee – just select Dementia UK as your charity on signup! 

The end-of-season Chiltern Challenge covers some of the best of the Chilterns countryside and is a brilliant way to way to either end your Ultra Challenge season with a bang, or a great challenge to start your Ultra Challenge journey. Walk, jog, or run a 50k, 25k or 10k loop as an individual or a team, with full support and hospitality all the way. With a start and finish at the basecamp in Henley, there’s also a Saturday night celebration BBQ, bar, and entertainment, with extensive on-site camping and parking options – there’s a challenge for everyone! 

Your entry includes a range of free food and drink at regular rest stops, and support from medics, marshals, and massage teams. As you cross the finish line, you’ll get a refreshing celebratory drink, t-shirt, and a special medal to celebrate your achievement. 

Dementia UK are an official Partner on this great challenge and can offer you a 50% discount on your charity registration fee when signing up. Head to Ultra Challenge website to find out full details of prices and to sign up – remember to select ‘official partner 50% off’ on Sponsorship for Charity to support Dementia UK.  

Set yourself up for an active Autumn with #TeamDementiaUK! 

Challenge options
  • Half Challenge – 50km 
  • Quarter Challenge – 25km 
  • 10k Challenge – 10km Chiltern loop 
When joining the team you’ll receive: 
  • support from our fundraising team to get you over the finish line 
  • training plans 
  • a fundraising guide, as well as fundraising advice, hints and tips in the build up to the event 
  • a branded Dementia UK sports top for the day! 
  • a range of Dementia UK fundraising materials (collection buckets, posters, balloons etc.) to make any events you hold look amazing 
Top tips for fundraising success

Every penny you raise from your event will help our dementia specialist Admiral Nurses provide a lifeline to more families facing dementia – and we’re here to support you every step of the way. 

Fundraising ideas 

Organising another fundraising activity alongside your main challenge will help you smash your goal. Here are some ideas: 

  • host a quiz 
  • arrange a raffle 
  • hold a sweepstake on how long your challenge will take, or the distance you’ll achieve 
  • organise a bake sale at home, at work or in your community 
  • create a sponsored playlist, where supporters donate to add their choice of song 

Your fundraising welcome pack 

Once you’ve signed up for your challenge, we’ll send you a fundraising welcome pack that’s full of advice on how to meet – and beat – your target.  


Setting up a JustGiving page is a great way to fundraise online. Share your link with family, friends and colleagues, and watch the donations roll in.  

You can use JustGiving to explain why you’re taking on your challenge for Dementia UK, keep track of how much you’ve raised, and even share your training progress using Strava so your supporters can see how well you’re doing. The more you update and share your JustGiving page, the more donations you’ll receive. 

Gift Aid 

If your supporters are UK taxpayers and their donation is voluntary (not proceeds of a sale), we can claim an extra 25p for every £1 donated – at no extra cost to them. Make sure they fill in the Gift Aid form in your fundraising pack or tick the correct boxes if they’re donating online. 

Sending in your donations 

If you’re fundraising through JustGiving, the donations will automatically come to us. If you’ve got cash to pay in, you can do this online, by phone, by bank transfer or by post. 

Click here to find out how to pay in your donations. 

Sponsorship for charity 

You pay a small registration fee, do lots of fundraising and we cover the cost of your event place! As we are an official Charity Partner–you get 50% off the standard reg fee when you select ‘Official partner 50% off’ on Sponsorship for Charity, then select our charity on the dropdown. 

Quarter Challenge – £15 fee paid online and £250 charity sponsorship 

Half Challenge – £30 fee paid online and £395 charity sponsorship 

Mixed Funding 

Pay half of the event place cost yourself, fundraise a bit less and we pay the balance of the event place cost. 

Quarter Challenge – £45 fee paid online and £135 charity sponsorship 

Half Challenge – £72.50 fee paid online and £220 charity sponsorship 


You pay the full cost of the event place – fundraise whatever you want, with no set target or deadline, and there’s no cost at all to the charity! (This is only option for Chiltern 10K) 

Quarter Challenge – £79 fee paid online 

Half Challenge – £129 fee paid online 

Not what you're looking for?

The Ultra Challenge Series have alternative events throughout the year at multiple locations. Click on the links below to find an event to suit you: 

  • London Winter walk 2023 
  • Easter 50 Challenge 2023 
  • Isle of Wight Challenge 2023 
  • Jurassic Coast Challenge 2023 
  • London 2 Brighton Challenge 2023 
  • Lake District Challenge 2023 
  • Cotswold Way Challenge 2023 
  • Peak District Challenge 2023 
  • North Downs 50 Challenge 2023 
  • South West Coast 50 Challenge 2023 
  • South Coast Challenge 2023 
  • Thames Path Challenge 2023 
  • Thames Bridges Trek 2023 
  • Chiltern 50 Challenge 2023 
  • Halloween Walk 2023 

Gary and his team who took on a trek for Dementia UK:

My father passed away in January 2021 having suffered with dementia for a few years. We collected money for Dementia UK in lieu of flowers at the funeral, I thought it would be a good opportunity therefore to add to the money we had already collected by walking for Dementia UK