The Ultimate Mud Obstacle Race in the Beautiful Surrey countryside!

Looking for a mud run or obstacle course race near London?
The Nuts Challenge is the UK’s original and award-winning Mud Obstacle Race, located in Dorking, Surrey.

Whether you’re a first-timer or a seasoned athlete, Nuts is the ultimate obstacle course racing (OCR) experience, designed to push your limits and deliver unforgettable muddy fun!

Tackle our permanent obstacle course packed with over 100 natural and man-made challenges!

From crawling and climbing to wading through mud and water.

Nuts Challenge is for everyone!

Bootcamps, workplaces, families, Teams, charities and solo runners!

The Nuts Challenge is suitable for all abilities, you don’t need to be super-fit to take on the course!

Run solo, with a team, or for charity – it’s up to you.

Choose between 1 lap, 2 laps or really test yourself with Limitless laps!

Suitable for all fitness levels – From beginners to elite OCR athletes.

The Nuts Challenge is Created and run by Wayne Monkman, a pioneer in UK OCR with 25+ years’ experience.

Operated all year-round on a single, professionally maintained course – no pop-up fields here!

Unlike other mud runs or pop-up races, Nuts is “old school” OCR at its best – permanent, proven, and packed with obstacles that keep you coming back year after year!

What to Expect:

Mud, Water, Trail Running, Walls, Cargo Nets, Tunnels, and more!

A true test of Endurance, Strength, Stamina and Teamwork – Run to test yourself or run just for fun and enjoy the experience.

The Nuts Challenge is the UKs oldest, most established Obstacle Race!

Whether you’re searching for a muddy obstacle run, training for a Spartan-style challenge, or just want a fun day out getting dirty — The Nuts Challenge is the one to beat.

Ready to get muddy?
Book your place now and take on The Nuts Challenge – a legendary UK obstacle race you’ll never forget.

Go Nuts at The Nuts Challenge!

Visit The Nuts Challenge heart-pounding Assault Course set near Dorking in the beautiful Surrey countryside!

Unlike others, our course is permanent and set up all year round making the best use of the natural terrain plus our unique Nuts obstacles!

Fancy something Tough & Muddy?

Take on The Nuts Challenge – You won’t regret it!   

Nuts Challenge gives you excellent value!

Cheaper than the big brand obstacle races

More obstacles than expensive pop-up races

No extra cost for multiple laps

Race with your Mates, Team, Solo or for Charity!

The Nuts Challenge welcomes you to a Challenge like no other. With mud trenches, water obstacles, climbing and crawling obstacles, tunnels and much more on our army style assault course that will push you to the limits! 💪

Our course updates every year with new layouts and new obstacles so even if you have done The Nuts Challenge before there’s always more to experience!

Ready to take on the challenge? Visit our Booking page, secure your spot, and gear up for a Nuts Challenge you’ll want to relive over and over again. The course may be fast, but the memories will live forever!