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Easter 50 Ultra Challenge 2025

A challenge event you can take on at your pace. The Easter 50 Challenge invites you to walk, jog or run a distance of your choice!

The Easter Challenge 50 includes 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.

From the Windsor Racecourse base camp, 1500 adventurers will head out on looped routes through the Great Park with
fantastic views of Windsor Castle, on to Runnymede, along the Thames Path, and takes in some wonderful countryside. You’ll get full support all the way, a few post Easter surprises, a celebration finish at base camp, and a BBQ meal. It’s a great way to kick off the 2025 Ultra Challenge season, and to get in shape for summer. 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, or 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
  • ✓ 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.

Autumn Deal

Use the codes below at check out to receive an additional 25% discount off registration fees (on top of existing discount) Excludes 10km/mile events

50km Half Challenge: AUTUMN5025km Challenge: AUTUMN25

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


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

DistanceReg FeeFundraising target
50km£40£375
25km£30£275
10km £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.

DistanceReg FeeFundraising target
50km£75£225
25km£50£150
10km£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!

DistanceReg Fee
50km£139
25km£89
10km£39

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


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.


Event details

When: Saturday 12 April 2025

Where: Windsor & Thames Path

Registration fee: £20 – £139

Get a 25% discount on the ‘Full Sponsorship’ registration fee when signing up to support us!

Fundraising: £70 – £375

Type: Walk, Jog or Run

Distance: 50km, 25km or 10km loop

Supporting you

You’ll receive support from the Challenge Events Team including: