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Tough Mudder London South

19th September 2026 - 20th September 2026

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?

What you’ll get from us:

  • Charity branded top
  • Support from our dedicated Sports and Challenges Officer
  • Access to training app from our partners GH Training
  • Fundraising resources
  • Access to our ‘Team Winston’ Facebook group

Details