North Downs 50 Ultra Challenge 2025

Join us in the North Downs for a fabulous ultra challenge setting out from a Guildford basecamp. Take in some of the best of the Surrey hills, the North Downs Way, and the surrounding countryside.

A challenge event you can take on at your pace. The North Downs 50 Challenge invites you to walk, jog or run a distance of your choice, along a signed route, with free food and drink at regular rest stops, plus support including medics, marshals and massage. Get the ‘Ultra Challenge’ support & hospitality all the way – helping you to push yourself further and achieve something really special for The Brain Tumour Charity.

A route with real variety and some wonderful scenery & views – and easily accessible from London – there’s a North Downs 50 Challenge for everyone! It will test spirit & determination but is totally achievable with good preparation and the Ultra Challenge support. With 50km, 25km and 10km challenge options available – there’s a challenge here for everyone – and you can join as an individual or as a team of friends / family.

You may have to dig deep at times, you’ll meet new friends along the way, and the journey will be unforgettable! As you cross the finish line, you’ll get a big welcome from the cheer squad, a glass of fizz, t-shirt, and a special medal to celebrate your achievement.

What you’ll get:

• ✓ Sign up from £10
• ✓ Inclusive & fun event with a great atmosphere and camaraderie
• ✓ Choose your distance – 10km , 25km, and 50km options
• ✓ Walk, jog, or run – it’s your challenge, your way!
• ✓ A fully signed route, with a team of ‘Trekmasters’ out on the trail with you
• ✓ Regular covered rest stops, with free food & drink, massages and medics
• ✓ An epic finish line moment, with a glass of fizz, medal and t-shirt
• ✓ Camping, transfer and parking options to make getting there & away easy
• ✓ Full fundraising support, and a choice of fundraising options

As The Brain Tumour Charity are an official partner on this event, you get a 25% discount on the ‘Full Sponsorship’ registration fee when signing up to support us.

Click here for full details of prices and to sign up:

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Fundraising options:

Full Charity Sponsorship

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 25% off the standard reg fee below

Distance	Reg Fee	Fundraising target
50km Challenge	£40	£375
25km Challenge	£30	£275
10km Challenge	£20	£100

Mixed Funding

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

Distance	Reg Fee	Fundraising target
50km Challenge	£75	£225
25km Challenge	£50	£150
10km Challenge	£22.50	£70

Self Funding

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!

Distance	Reg Fee
50km Challenge	£139
25km Challenge	£89
10km Challenge	£39

Click here for full details of prices and to sign up:

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Important information from the event organiser

All sponsorship goes directly to the Charity via your online fundraising page. At least 50% of the sponsorship target should be with the Charity 3 week prior to the Challenge. At this time, the Charity agrees to pay a fee for your place to the Organiser (similar to the Self Funding cost – or half of it for Mixed Funding as you’ve already covered half). Failure to meet the deadline may result in cancellation of your place by the charity. The remaining 50% and any extra, should be with your Charity by 4 weeks after the Challenge.

This event is organised by Action Challenge.

If you have any questions, don’t hesitate to get in touch with the events team events@thebraintumourcharity.org or call 01252 237867.