Get involved Fundraise for us Tough Mudder South London 2026 Tough Mudder South London September 2026 The ultimate obstacle course challenge: choose between a 5k or a 15k 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. Included in the ticket Finishers Medal Finisher Shirt Finishers Headband Free Parking How we can support you We'll be here with you all the way! As a BTF fundraiser, we'll help you to set up a fundraising page on our secure platform. We'll also send you a BTF running vest or T-shirt once you have raised £50 towards your overall fundraising goal, and lots of tips on how to boost your fundraising. And we can help you promote your fundraiser on social media. The difference you will be making Register for your place Registration fee is just £25.00 with a minimum fundraising target of £250.00 Register now for the Tough Mudder South London 5k - Saturday Register now for the Tough Mudder South London 15k - Saturday Register now for the Tough Mudder South London 5k - Sunday Register now for the Tough Mudder South London 15k - Sunday Registration deadline is 19 August 2026 Already got your own place? Awesome! We’d love you to join Team BTF! There’s no registration fee or minimum sponsorship. Just raise what you can! We'd also love to send you a free running vest or T-shirt once you have raised £50 towards your overall fundraising goal*, as well as details of how we can support you. Please get in touch *If you are doing this challenge as a group, we will supply free tops for up to two participants once you have raised £50 towards your overall fundraising goal. If you are doing a running event, please order a vest. Our T-shirts are heavy cotton and are not suitable for running in. Additional BTF tops can be purchased from our online shop Manage Cookie Preferences Please ensure Javascript is enabled for purposes of website accessibility