Take on Tough Mudder London South in 2026 for Winston’s Wish
Get ready to get filthy at Tough Mudder London South – set in the wild, wooded terrain of Holmbush Estate, just outside London. Take on the 5K or 15K course packed with 12+ or 20+ obstacles with the added challenge of knee-juddering hills, natural mudslides, and gravity-defying climbs and crawls. Earn your headband, medal, and finisher tee, then dive into the festival vibe of Mudder Village with music, food, and that well-deserved celebratory drink. Gather your team, test your limits, and see if you’re muddy enough for London South.
There’s even kids adventure courses too – packed full of obstacles to give children aged 4-14 years the chance to work as a team and get muddy.
Registration fee: 5K £95.12 | 15K £111.84 | Kids spartan (4-14 years) £23.60
Distance: 5K | 15K | Kids by Spartan 1K, 1.5K and 3K
Minimum sponsorship: no target, raise what you can.
With the most innovative 5K & 15K courses and millions of participants worldwide to date, it is you, your teammates and muddy strangers working together to conquer the course and earn the world-famous orange headband! Do you have what it takes to brave the Tough Mudder challenge?
Winston’s Wish and Child Bereavement UK are merging to strengthen the support available for bereaved children, young people, parents and families across the UK. In the coming weeks, Winston’s Wish will change its name to Child Bereavement UK. By taking on the Tough Mudder London South you will still be raising money to support grieving children, young people and families, but the charity you will be fundraising for will be called Child Bereavement UK.