Summer Nuts Challenge
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Event overview
The Nuts Challenge is an obstacle mud run held in Dorking, Surrey, near London. The event uses a permanent, professionally maintained assault course that operates year-round. Participants can enter alone, with a team, or represent a charity.
Course and format
The course includes more than 100 natural and man-made challenges. Obstacles mentioned include mud trenches, water obstacles, walls, cargo nets, tunnels, crawling sections, climbing features, and wading through mud and water. The organiser offers multiple distance options and the possibility of completing more than one lap.
- 5K
- 10K
Schedule and extras
The organiser runs events throughout the year and lists specific 2026 dates: a Winter 3km Nuts Sprint Race on Sat 31 Jan 2026; Winter Nuts on Sat 7 Mar 2026; Colour Challenge on Sat 30 May 2026; a 3km OCR Series Race on 5 Jul 2026; and Summer Nuts on 29 Aug 2026. The event mentions a Nuttie Scale to indicate challenge level. Race entries include a free race vest or t-shirt and a free key drop. Risk assessment, health and safety policy, and insurance documents are published by the organiser. Visit the organization's website for the most recent information.
