Are you a regular walker and new to endurance events? Perhaps a seasoned trekker looking for testing adventures? Or even a marathon runner wanting to 'up' your distance? Whether it's along magnificent coastal scenery, or in stunning open countryside, there’s an Ultra Challenge for you.
Every challenge gets full support and hospitality all the way from the challenge organisers, leaving you to focus on the challenge! You'll get rest stops with free food and drink, medics, massage and pace walkers, pre-event training support, accommodation options, plus medals and T-shirts.
Each challenge has different distance options – find out your full range of options at the individual event links below.
How to register
First, decide which event you wish to enter from the options below. Then follow the link for your chosen challenge to be taken to the registration form on Action Challenge’s website.
Make sure you choose 'Terrence Higgins Trust' from the-drop down list in ‘other charities’ to join our team.
Once you've registered on their site, we’ll be in touch to help you get started with your training and fundraising!
If you've bought a place in the race already and would like to run for us, let us know and we'll send you a free Terrence Higgins Trust running top. There's no minimum sponsorship in this case, just raise as much as you can!
Bath 50 Ultra Challenge
Saturday 26 March 2026
Centred on this elegant historic city, take on a 50 km Ultra, a testing 29 km, or a sharp 10 km challenge at your pace! From our Bath Racecourse basecamp 2000 adventurers will head out on looped routes around & through Bath – with fantastic panoramic views, past the famous Royal Crescent, along the River Avon and taking in many of the city’s sights & sounds and surrounding countryside.
Windsor 50 Ultra Challenge
Saturday 18 April 2026
Take on a 50 km Ultra, a historic 25 km, or a sharp 10 km challenge – and make it an active Easter! From our Windsor Racecourse basecamp 2000 adventurers will head out on looped routes through the Great Park with fantastic views of the Castle, on to Runnymede, along the Thames Path, and takes in some wonderful surrounding countryside.
Isle of Wight Ultra Challenge
Saturday 2 - Sunday 3 May 2026
The island is easy to get to – with good transport links, and its coastal path is the setting for an unforgettable challenge, which 2,000 or so adventurers will take on over the bank holiday weekend.
Jurassic Coast Ultra Challenge
Jurassic Coast Ultra Challenge
16 - 17 May 2026
Spectacular World Heritage coastline. A start in Corfe Castle, the route heads down to Swanage, and along through Lulworth Cove, past Durdle Door, with ups & downs to Weymouth half way. For full 100 km challengers, it’s past Portland Bill, Chesil Beach, and on to West Bay (of TV’s Broadchurch) – before a finish line celebration in the vibrant town of Bridport.
London 2 Brighton Ultra Challenge
London 2 Brighton Ultra Challenge
Saturday 23 - Sunday 24 May 2026
The ‘original’ Ultra Challenge! 2,000 or so adventurers will take on the Capital to Coast trails and test their grit & determination. Richmond-Upon-Thames is the start for most, and it’s over the North Downs with wonderful Surrey & 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 in to view. You’ll get full support & hospitality all the way – and with half, quarter, Sussex Marathon & Brighton 25km loop options also available – there’s a classic bank holiday weekend challenge here for everyone!
Lake District Ultra Challenge
Saturday 6 - Sunday 7 June 2026
Take on England’s finest countryside at your pace! Challenge basecamp is in Kendal, and it’s a 100km looped route taking in a couple of tough hills, the Garburn Pass, historic Ambleside, a half way point by Lake Windermere, forests & nature reserves – with some stunning views en-route – before a huge welcome & celebration back at basecamp after a momentous journey. You’ll get full support & hospitality all the way, optional camping / hostel accommodation – and with 50km half, marathon, quarter & 10K distance options also – there’s a Lake District Challenge for everyone!
Cotswold Way Ultra Challenge
Saturday 13 - Sunday 14 June 2026
Take on the Cotswold Challenge – a stunning 100km loop through the heart of the Cotswolds! Starting from our Cirencester basecamp, join 2,000 adventurers as you tackle rolling hills, charming villages, scenic trails, and sections of the iconic Cotswold Way — all with breathtaking views along the way.
You’ll receive full support and hospitality throughout, including optional university-style accommodation at basecamp. With multiple distance options — full, three-quarter, half, quarter, and a Cirencester 10km — there’s a challenge for everyone.
Peak District Ultra Challenge
Saturday 4 - Sunday 5 July 2026
This challenge welcomes 2,000 adventurers into the fabulous Peak District National Park.
North Downs 50 Ultra Challenge
North Downs 50 Ultra Challenge
Saturday 1 August 2026
The looped route takes in some of the North Downs Way, the Surrey Hills, and the magnificent views over the countryside to the south.
South West Coast 50 Ultra Challenge
South West Coast 50 Ultra Challenge
From basecamp in the shadow of Dunster Castle, the route takes in the fabulous first section of the 630 mile SW Coastal Path – from Minehead to Porlock, with fantastic views out towards Wales.
Summer Walk
Explore the ‘gateway to London’ along the River Thames eastern section.
Other treks
Saturday 5 - Sunday 6 September 2026
The South Downs National Park is a superb backdrop for 2,000 adventurers to take on a real challenge.
Friday 11 September 2026
Take on a spirited 10km or an energetic 10 mile looped route through the heart of London as darkness falls, passing famous landmarks.
Saturday 12 - Sunday 13 September 2026
Join over 3,000 adventurers at the Putney Bridge start line and follow the iconic 100km route upstream to Henley, tracing the scenic Thames Towpath. Along the way, you’ll pass through Richmond, Hampton Court, Runnymede, and Windsor, with stunning riverside views throughout.
There are multiple distance options to suit all abilities — including three-quarter, half, and quarter challenges.
Saturday 12 September 2026
Join 2,500 walkers for an unforgettable 25km trek across London! Starting at Putney Bridge, you’ll head east towards the City, crossing 16 historic bridges — each with its own fascinating story — while enjoying unrivalled views of the capital’s skyline and landmarks.
There’s a well-earned rest stop at The Oval Cricket Ground for snacks and drinks, before continuing on to the majestic Tower Bridge. The journey ends with a celebratory finish line party and afternoon picnic in Southwark Park.
The end of season challenge takes in some of the best of the wonderful Chilterns countryside, with historic trails, nature reserves, forests, and a few hills with fantastic views.
A hair-raising hike around London’s scary streets and historic haunts! Gather your bravest guys and ghouls and dress to distress.
Prices and fundraising options
Charity sponsorship
Pay a small registration fee, do lots of fundraising and we cover the cost of your event place!
- 10 miles: fee £10 / fundraising target £100
- 25km: fee £20 / fundraising target £240
- 50km: fee £30 / fundraising target £360
- 75km: fee £35 / fundraising target £450
- 100km: fee £40 / fundraising target £575
Mixed funding
Pay half of the event place cost yourself, fundraise a bit less and we pay the balance of the event place cost.
- 10 miles: fee £22.50 / fundraising target £70
- 25km: fee £50/ fundraising target £150
- 50km: fee £75 / fundraising target £225
- 75km: fee £90 / fundraising target £270
- 100km: fee £100 / fundraising target £300
Self funding
You pay the full cost of the event place – choose your own fundraising target!
- 10 miles: £39
- 25km: £89
- 50km: £139
- 75km: £169
- 100km: £198
Not all events offer all options. See individual event pages for full details.
How we'll support you
We’ll be here to support you from the moment you register until you cross that finish line.
In the lead up to your challenge we’ll provide you with:
- A guide to help kickstart your fundraising.
- Your free Terrence Higgins Trust T-shirt or running vest.
- A member of the Terrence Higgins Trust team to support you with your training and fundraising.
- Regular news and updates to keep you informed.
Any questions? Get in touch with our Fundraising team.
Running and challenge events FAQ’s
Got a question about our challenge events or fundraising for Terrence Higgins Trust? Take a look at our FAQs.
