Walk, Jog or Run an Ultra Challenge and Support Encephalitis International

Whether along stunning UK coastlines, or trails through wonderful countryside, your Ultra Challenge^® will be unforgettable – with full support all the way, camaraderie, an amazing sense of achievement, and all whilst raising awareness and funds for Encephalitis International.

Walk, Jog or Run at your pace on the Ultra Challenge Series event of your choice!

• Distance Options: 100km, 75km, 50km, 25km and 10km to choose from (dependant on challenge location)

• Start Location: Various challenges and locations throughout the UK (see dates and options below)

Your entry includes free food and drink at regular rest stops, plus support including medics, marshals and massage. As you cross the finish line, you’ll get a glass of fizz, t-shirt, and a medal to commemorate your achievement.

Camping, transfer and parking options to make the logistics easy are available on lots of the challenge locations.

Click the links below for full details, challenge distance options, photos, videos and pricing:

Bath 50 Ultra Challenge – 28 March 2026

Windsor 50 Ultra Challenge – 18 April 2026

Isle of Wight Ultra Challenge – 2/3 May 2026

Jurassic Coast Ultra Challenge – 16/17 May 2026

London 2 Brighton Ultra Challenge – 23/24 May 2026

Lake District Ultra Challenge – 6/7 June 2026

Cotswold Way Ultra Challenge – 13/14 June 2026

North Yorks Ultra Challenge – 20/21 June 2026

Peak District Ultra Challenge – 4/5 July 2026

Gower Peninsula Ultra Challenge – 18/19 July 2026

South West Coast 50 Ultra Challenge – 25 July 2026

North Downs 50 Ultra Challenge – 1 August 2026

London Summer Walk (25km or 10km) – 22 August 2026

South Coast Ultra Challenge – 5/6 September 2026

Thames Moonlight 10 Walk – 11 September 2026

Thames Path Ultra Challenge – 12/13 September 2026

Thames Bridges Trek (25km or 10km) – 12 September 2026

Chiltern 50 Ultra Challenge – 26 September 2026

Kent Downs 50 Ultra Challenge – 10 October 2026

London Halloween Walk (25km or 10km) – 31 October 2026

 

How to enter:

• Option 1, FULL SPONSORSHIP: pay a lower Registration Fee and fundraise to reach the Minimum Sponsorship amount (Encephalitis International pay for your event cost)

• Option 2, MIXED FUNDING: pay a higher Registration Fee and fundraise to reach a lower Minimum Sponsorship amount (Encephalitis International pay for half of your event cost)

• Option 3, OWN PLACE: pay a Registration Fee equal to your event cost and fundraise whatever you can (Encephalitis International pay only a small admin fee)

Browse All Ultra Challenge Events

 

How we can help:

Once your place is reserved by paying the Registration Fee to Ultra Challenge, it’s time to start fundraising and training for your chosen distance.

Look out for an email from the Fundraising Team – we will be in touch so we can support you all the way!

We’ll send you:

• Our helpful Fundraising Guide – full of ideas and top tips
• Resources to help you raise awareness of your challenge
• A lovely Encephalitis International t-shirt or running vest

We have plenty of experience to offer advice and answer your questions. Don’t hesitate to get in touch via fundraising@encephalitis.info or you can contact us via telephone by calling +44(0)1653 692 583.