Great Barrow Challenge

JUL
29
2027
Day One at Suffolk Running Centre uses a flat 10.4 km out and back road route with options from 5 km to ultra, parking and a base camp with water station provided.
Thu 29 Jul 2027
52 kilometers 47 kilometers Marathon Half Marathon 10 kilometers

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Great Barrow Challenge - Day 1

This entry is for Day One of the Great Barrow Challenge, an individual day entry hosted at the Suffolk Running Centre, Church Road, Bury St Edmunds, IP29 5AX. Day One uses the Denham Flats route, a 10.4 km out and back from the campsite that is run entirely on road. The route turns around at about 5.2 km and retraces to the start. Elevation change is modest, with about 22 m of climb, a high point of 107 m and a low point of 89 m.

Distances available on the day:

  • 5 km
  • 10.4 km one loop
  • Half Marathon two loops
  • Marathon four loops
  • Ultra four loops plus a 5 km turnpoint or five full loops

Those completing 5 km use a 5 km turnpoint and return to the centre. Parking is included in the entry price. The Race HQ and base camp are located at the start and lap point, and a water and aid station is available there. Bespoke medals are issued at the end of each race day. The event is cupless so participants must bring their own bottles or cups for refilling. No dogs or buggies are permitted on this route because roads are open to traffic. Headphones are not permitted except bone conductor types. A GPX file for the course is available from the course tab. Maximum entrants 300, minimum age 18, entries close 28/07/2027, transfers close 21/07/2027. Routes are subject to change. Visit the organization's website for the most recent information.

52 km
Ultra Marathon (5 Loops)
47 km
Ultra Marathon (4 Loops + 5k Turnpoint)
Marathon
Marathon (4 Loops)
Half Marathon
Half Marathon (2 Loops)
10 km
10k (denham Flats)

Events nearby

A circular 13.1 mile trail through Thetford Forest with mixed surfaces, wildlife views, cupless water stations, event photography and trophies for top finishers.
Guided 16k trail run at High Lodge in Thetford Forest with conversational pace, forest facts, running tips, parking charged £3 and an entry fee of £17.50.
Free community 5k trail run in The King's Forest, Bury Saint Edmunds with coffee, snacks and a nearby roaming sauna, organised by Run Vibes Events.
A chip timed 10K trail loop around Sapiston and Honington in Suffolk with mixed terrain, marshals, a halfway water station and finisher medals.
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