Home of 50 & 100 mile trail ultramarathons, the Track 100 Mile and the Piece of String Fun Run

Fully marked and supported races across the most scenic trails in the United Kingdom.


Apr 4, 202050mi5700ft13hrs£85

50 mile point to point run from Worthing to Eastbourne on the SDW. Total Climb: 5700ft. 8th Annual. Date: 4th April 2020.


May 2, 2020100mi1900ft28hrs£165

100 miles non-stop on foot along the River Thames from Richmond, London to Oxford. 28 hour time limit. Total Climb: 1900 feet. Date: 2nd-3rd May 2020.


May 16, 202050mi5600ft13hrs£85

10th annual 50 mile trail run from Farnham to Knockholt Pound on the North Downs Way. Total Climb: 5,500ft. Date: 16th May 2020


Jun 13, 2020100mi12700ft30hrs£165

100 mile trail run from Winchester to Eastbourne on the South Downs Way. Total Climb: 12,700ft. 9th Annual. Date: 13th-14th June 2020


Aug 8, 2020103mi10000ft30hrs£165

Point to point 100 mile trail run on the North Downs Way. Total Climb: 10,000ft. 10th annual.


Sep 12, 202050mi5600ft13hrs£85

50 mile run consisting of a single loop through the picturesque Countryside & rolling hills of the Chilterns. Total Climb: 5600ft. 5th Annual. Date: 12th September 2020.


Oct 12, 2019100mi5000ft28hrs£165

100 mile trail run taking in the Ridgeway and Thames Path National trails. Total Climb: 5000ft. 8th Annual. Date: 12th-13th October 2019.


Nov 16, 201950mi10000ft15hrs£85

50 mile run consisting of 5 x 10 mile loops on the forest trails of Wendover Woods. Total Climb: 10,000ft. 4th Annual. Date: 16th November 2019.