L2B
Trek

London 2 Brighton Ultra Challenge 2026

Event Type Trek, jog or run
Date 23 - 24 May 2026
Location London to Brighton
Registration Fee £22.50 - £110
Fundraising Target £70 - £575
Distance Options 100km, 75km, 50km, 25km, 10M
Event Organiser Ultra Challenge

Choose a full charity sponsorship place and sign up for £10 until 30 April! Use code ‘ALZHEIMERSSOC10’.

Offer excludes 10km and 10 mile distances.

The challenge

Around 2000 adventurers will take on the capital to coast trails and test their grit and determination. You can join and take it on at your pace as a walk, jog, or run while fundraising for Alzheimer's Society! Richmond-Upon Thames is the start, and it’s over the North Downs with wonderful Surrey and Sussex countryside to halfway at Turners Hill. 

The full 100km route heads over the South Downs before the welcome sight of the Brighton coastline comes into view. Sign up as an individual or as a team; you’ll get full support all the way, plenty of food and drink, optional camping and transfers, a special medal, t-shirt and celebration finish. With half, quarter, marathon and 25km options also available – there’s bank holiday weekend challenge here for everyone! Push yourself further in 2026, take on an Ultra Challenge – the UK’s number one series of treks and trail challenges.

The route

Distance options

  • Full Challenge (100km) – Richmond, London to Brighton
  • 3/4 Challenge (75km) - Sutton to Brighton
  • 1st Half  Challenge (56km) – Richmond to Turners Hill
  • 2nd Half Challenge (44km) – Turners Hill to Brighton
  • 1st Quarter Challenge (25km) – Richmond, London to Oaks Park, Sutton
  • 2nd Quarter Challenge (33km) - Oaks Park, Sutton to Turners Hill
  • Brighton Loop (25km) - a new 25km option looping around Brighton

Fundraising

You'll pay a small registration fee and then get fundraising for Alzheimer's Society! You only need to raise half of the fundraising target three weeks ahead of the London 2 Brighton Challenge to confirm your place, you can then top up the rest during, and after, the challenge!

  • Full Challenge (100km): £50 registration fee + £575 in fundraising
  • 3/4 Challenge (75km): £45 registration fee + £475 in fundraising
  • Half Challenge (56/44km): £40 registration fee + £375 in fundraising
  • Quarter Challenge (25km): £30 registration fee + £275 in fundraising
  • 10 Mile Challenge: £20 registration fee + £100 in fundraising

You can also do mixed funding and pay a higher contribution to the cost of your place and fundraise less:

  • Full Challenge (100km) - £110 registration fee + £330 in fundraising
  • 3/4 Challenge (75km) - £90 registration fee + £270 in fundraising
  • Half Challenge (56/44km) - £75 registration fee + £225 in fundraising
  • Quarter Challenge (25km) - £50 registration fee + £150 in fundraising
  • 10 Mile Challenge - £22.50 registration fee + £70 in fundraising

We're on hand to help you reach your goal, with lots of fundraising materials at the ready! If you have any questions, email [email protected]

London to Brighton AC logo

FAQs

For further information about the challenge, its inclusions, and FAQs, please visit the Ultra Challenge's website. Alternatively, you can email [email protected]

If you have any fundraising questions, you can get in touch with the Alzheimer's Society's Events team.

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