These have become incredibly popular, with a wide range of events available throughout the year and not just in winter. The mud and obstacles make it more than just a running test - here's everything you need to know:
To refine your search, click + on the blue filters.
Failure at an obstacle in a Spartan Race leads to the dreaded 30 burpees - follow this advice from Race Director Karl Allsop to give yourself the best chance of avoiding a penalty.
Found yourself signing up to Tough Mudder, the Royal British Legion Major Series or a Spartan race with no idea what you’re letting yourself in for? Then check out these expert tips.
Combining a run with obstacles that can range from a cargo net or a mud crawl to a giant slide takes an all-round set of skills.
Want to list your event?Register here and list it free!
Need to update your event?Login here
Sign up now & get the latest event updates in your Inbox every week!
Far-flung adventures from around the world - what will you do in 2017?
The world's best active holidays and trips - cycling, walking, running, watersports and more.
Rides, runs, treks and trips from across Europe - what's your goal?
The top training camps from around Europe and beyond - running, cycling, triathlon and more.
Events, challenges and trips to target in 2017, from across the UK.