Tough Mudder 2026

Get ready to prove how tough you really are with Tough Mudder, the ultimate obstacle challenge! You’ll overcome icy water, extreme mud, electricity, rope climbing and much, much more, all to raise money to help those affected by HIV. 

• London West

  Henley-on-Thames
  Date: Saturday 9 and Sunday 10 May 

   

• Scotland

  South Queensferry
  Date: Saturday 6 June

   

• Midlands

  Grantham
  Dates: Saturday 4 and Sunday 5 July

   

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.

Our dedicated fundraising team at Terrence Higgins Trust is here to support you every step of the way. Whether you're new to fundraising or looking to maximise your impact, we can advise you on the best fundraising platform for the event.

We ask that you consider whether you're confident in reaching the events fundraising target before signing up.

If sponsorship targets aren't reached, it can impact our ability to continue our vital work at Terrence Higgins Trust. It can even leave us out of pocket, as we pay a certain amount for each event space. 

If you have any concerns about fundraising at any point, please don’t hesitate to contact us at [email protected]. We’re always happy to help!

With every step you take, during training and race day, you'll be doing something amazing for people affected by HIV. 

Your support and fundraising help fund vital services including our one-of-a-kind sexual health helpline, HIV testing, counselling, and peer support programmes.

We are working to ensure that there will be no new HIV cases in the UK by 2030. Everyone living with HIV will be diagnosed, in treatment and care, free from stigma and able to take advantage of life’s opportunities.

Stand with us. Run for us. Together, we can end new cases of HIV in the UK by 2030.

Thanks to the incredible support of our fundraisers — including our challenge event runners — last year we were able to:

• Respond to 12,591 enquiries through our free THT Direct helpline
• Distribute over 5,700 HIV self-test kits at no cost to those who needed them most
• Cover the cost for 500 people living with HIV to access My Community, our secure online space
• Win the case to extend opt-out HIV testing to 89 hospitals across England
• Deliver over 278 Positive Voices sessions, reaching more than 21,100 people with powerful stories about living with HIV

If you're lucky enough to secure your own place, we’d love for you to join our team and fundraise to help end new cases of HIV in the UK by 2030.

There’s no minimum fundraising commitment – we simply ask you to raise what you can. You'll receive the same amazing support from our dedicated team. 

Let us know you have a place.

Got a question about our challenge events or fundraising for Terrence Higgins Trust? Take a look at our FAQs.

If you have any questions about the 2026 Tough Mudder series, please get in touch - we'd love to hear from you! Contact our Fundraising team.