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JDRF has now rebranded to Breakthrough T1D.
Our name has changed, our mission has not.

Walks & treks

Ultra Challenge Series 2026

Choose from over 20 Ultra Challenge events across the UK and help us drive breakthroughs in type 1 diabetes in 2026.
Location: UK-wide Date: Various Price: From £10

Runners at the Ultra Challenge Thames Bridges Trek starting line with smoke rising

About the Ultra Challenge Series

Looking for a challenge to push yourself, to get in shape, or bond with friends on a weekend adventure? If so, take on an Ultra Challenge for Breakthrough T1D.

You don’t need to be a budding elite athlete. With a range of distances and locations, there’s an Ultra Challenge for everyone and you can take it at your pace.

Whether you’re after stunning coastlines, or trails through wonderful countryside, your Ultra Challenge will be unforgettable. You’ll get full support along the way, camaraderie and an amazing sense of achievement, and all in support of Breakthrough T1D.

Walk, jog or run an Ultra Challenge of your choice. Join 35,000 others of all ages to take on an unforgettable Challenge in 2026!

What’s more, as Breakthrough T1D are an official partner on the 2026 Ultra Challenge Series, you get a 25% discount on the ‘Full Sponsorship’ registration fee when signing up to support us.

How to sign up

View the full list of Ultra Challenges and sign up.

Remember to select Breakthrough T1D from the list of Associate Charities to support us and benefit from your 25% discount.

What you’ll get

  • A choice of over 20 inclusive and fun events that you can take part in as an individual or with your family or friends.
  • A fully signed route, with a team of Trekmasters out on the trail with you.
  • Regular covered rest stops, with free food and 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 and away easy.

How we’ll support you

  • Full support with your fundraising, including tips on how to reach your targets and access to free fundraising materials.
  • A free technical T-shirt for you to wear with pride during your challenge.
  • Access to our amazing Breakthrough T1D community via our Facebook group, where you can post updates and get advice from your fellow fundraisers.
  • A dedicated member of our Events team who will be on hand to answer any challenge or fundraising-related questions.

About Action Challenge

The Ultra Challenge series is organised by Action Challenge. Each year, 35,000 participants take on these hugely popular events. To date, they have helped raise over £7 million for good causes.

See what other exciting challenges they have on offer.

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