About the 2027 Tough Mudder
Get ready to prove just how tough you really are with Tough Mudder, the ultimate obstacle challenge!
With no competition and no timing, it’s just you, your teammates and muddy strangers working together to conquer the course and earn the world-famous orange headband.
How to get started
Get your CALM charity place by choosing your preferred date and location and signing up using the links below. There is a £35 registration fee (plus Run for Charity's admin fee) and a £300 fundraising target for all Tough Mudder events.
- Tough Mudder London West: 8 & 9 May 2027
- Tough Mudder Scotland: 5 June 2027
- Tough Mudder Midlands: 3 & 4 July 2027
- Tough Mudder Yorkshire: 24 & 25 July 2027
- Tough Mudder South West: 14 August 2027
- Tough Mudder London South: 18 & 19 September 2027
How we'll support you
Whether it’s your first time taking on a Tough Mudder or you’re back for more, we’re here to make sure you have the best time. As part of Team CALM you’ll receive:
A CALM t-shirt or vest so you look the part on the day
Dedicated support from the Challenge Events team
Access to the CALM Running Club Facebook group
Tips and advice to help you smash your fundraising target
Event Accessibility
Tough Mudder is committed to making their events accessible. To discuss your accessibility needs, get in touch with the Tough Mudder team who will be happy to help.
Got a question?
Check out our FAQs or head to the Tough Mudder website. If you can’t find an answer there, get in touch and we’ll be happy to help.
