Saturn 7 Hour Time Challenge - Gilesgate

Gilesgate, United Kingdom • 21 May 2026

SATURN - Dun Holm Challenge - Day 1 - North

This is Day 1 of a five day series of timed trail events held in Durham. The course runs along a stretch of the River Wear with views of the Cathedral and is fully signed. The event is a 7 hour time challenge that allows participants to choose how many laps to complete, with a minimum official finish distance of 3 km.

There are marked 3 km and 5 km turn points within the lap to allow younger runners to comply with UK Athletics distance rules. The regular lap is given as 4.37 miles (about 7 km) but may be changed to a 3.28 mile loop depending on course conditions. The course is classified as trail and is subject to change after a health and safety review.

Amenities at the race HQ include toilets and changing facilities, an aid and drinks table at the start/finish of each lap, a goody bag for finishers with a vegan option, and distance pins for those completing half-marathon distance or more. A themed medal is awarded to any official finisher of at least 3 km. Bags may be left near the start and finish at the owner’s risk. Headphones are permitted. Parking options include nearby free on-street parking or pay and display city centre parking.

  • 3 km minimum official finish
  • 7 km lap approx 4.37 miles subject to change
  • Half marathon 3 laps
  • Marathon 6 laps
  • Ultra 7 or more laps
  • 50 km distance available

Minimum age 12 years. Entrants are capped at 300. Competitors over 45 km must be at least 20 years old; 18 and 19 year olds may run up to 45 km only. Visit the organization's website for the most recent information.

Race information

50 km
Marathon
Marathon
Half Marathon
Half Marathon
7 km
Single Lap
Minimum Distance
7 Hour Time Challenge
Ultra
Visit the organization's website for the most recent information.
Trail runs nearby

A 10 km trail race in Chopwell Woods with a fixed finish time and a flexible start window where each runner chooses when to begin; the last to start wins. Organised by TwistedTrails and licensed by the Trail Running Association.

Five and ten kilometre trail runs around Derwent Reservoir on 17 May 2026, with firm trails, some grass and woodland. Live chip timing, Canicross friendly, finishers get a medal and merchandise.

A **10 km** trail race on a fast, flat course, open to all ages and abilities. All entries get a medal and goody bag and top two men and top two women receive prizes, with spot prizes and a series league table.

Day 2 of the Dun Holm Challenge is a 7 hour Time Challenge along the River Wear in Durham, with a 5 km minimum and multiple distance options. Finishers receive a Durham themed medal and distance pins for half marathon or further.

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