Tough Mudder

With numerous events across the UK, it's time to test how tough you really are. These hardcore 8 to 10-mile obstacle courses or the faster 5km options will be a true test of your strength, stamina and mental grit.

Overcome hills, icy water, muddy fields, rope climbs, fire and electricity in this hardcore obstacle course.

You can choose between the Classic 8 to 10-mile full Tough Mudder course, or, the shorter 5km Tough Mudder course.

Up for the challenge? Find an event near you below.

The year ahead

The first Tough Mudder events for 2020 have been announced, secure your place today and set yourself a fantastic challenge for the new year!

  • London West - 9 and 10 May 2020 (Classic or 5km)
  • Midlands - 13 and 14 June 2020 (Classic or 5km)
  • Scotland - 4 and 5 July 2020 (Classic or 5km)
  • Yorkshire – 1 and 2 August 2020 (Classic or 5km)
  • South West - 15 and 16 August 2020 (Classic or 5km)
  • North West - 5 and 6 September 2020 (Classic or 5km)
  • London South - 19 and 20 September 2020 (Classic or 5km)

Get your place

Get your Tough Mudder Classic place today for just £35 or your 5km place for just £20.

We ask all our Classic team members to commit to raising £350 and our 5km members to commit to raise £250 for the children at the hospital. 

Sign me up

As part of Team GOSH you'll receive

  • a fundraising pack full of tips, advice and fundraising materials

  • a complimentary professional running vest

  • access to professional training plans

  • unlimited support from a dedicated Challenge Events team

  • the satisfaction of knowing you're helping Great Ormond Street Hospital provide world-class care to its young patients and their families

Got your own place?

Let us know and get a running vest and support from our team!

Join Team GOSH with my ballot place


We'll help you get to the start line! We’ve partnered with Mbition, the Adaptive Training plan, to get you prepared to have an amazing race day. It creates a custom training plan which is 100% built around your fitness, schedule and goal. It then cleverly adapts as you progress.

Set up your free 30-day trial and create your own personal plan in two minutes. Once your trial is up, you can sign up and get 25% off for being a GOSH runner!