BigMud Trails

FEB
21
2027
Single-lap muddy trail races at Queen Elizabeth Country Park with 16 mile, marathon and 50K routes, climbing Butser Hill twice and staffed aid stations.
Sun 21 Feb 2027
50 kilometers Marathon 16 miles

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About the race

BigMud Earth Trails is the first event in the Classic Element Trail Series and represents the element Earth. The event returns for its sixth year with three single-lap, muddy trail races through the Meon Valley in the South Downs National Park. All races start and finish at Queen Elizabeth Country Park, with a 518 ft climb to the summit of Butser Hill completed twice on course.

Distances and entry prices:

  • 16 Miles, £44
  • Marathon, £58
  • 50K Ultramarathon, £68

Aid stations are provided on each route and are listed with mile markers. They offer a selection of sweet and savoury snacks including vegan options, plus water and flat coke; the event operates as a cupless event. Precision Fuel & Hydration supplies PH 1000 electrolyte at each aid station, and runners may collect two PFH gels at registration. Cut off times are set per distance.

Mandatory kit and services: runners must carry at least 500 ml of fluid and are advised to carry appropriate clothing for changeable weather. Runners are strongly advised to download the GPX file for the route. A bag drop tent is available on the day. Canicross entries are not accepted. Classic Element Trail Series T-shirts are available by pre-order and can be collected at Event HQ. A Trees Not Tees option allows a tree to be planted instead of a finishers medal. Visit the organization's website for the most recent information.

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