Challenge-X obstacle races, mud run, and OCR information, distance, cost, dates, calendar, discounts, obstacles, reviews, and more

Challenge-X is a registered charity and all profits from the 2013 event will go to help rehabilitate Royal Marines who have been wounded in Afghanistan



Challenge-X is a 100km two-day event consisting of three stages. A grueling 20km trail run followed by a punishing 65km technical mountain bike stage over the rough terrain of the breathtaking Dartmoor National Park on Saturday 10th August, then a demanding 15km circuit of the Royal Marines Commando Endurance Course at Woodbury Common, Devon on Sunday 11th August. Athletes will camp overnight on Dartmoor between stages.

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Upcoming Challenge-X Events

We don't know of any upcoming events for Challenge-X. You can check out our list of past events and reviews below, or if you know of an upcoming race, add it to our calendar!


Browse our calendar of previous mud runs, mud races & obstacle races for Challenge-X

Challenge-X Reviews from the Community