North Downs Way 100

AUG
7
2027
A 103 mile trail race along the North Downs Way from Farnham to Ashford with 11,000 feet of climb, 12 aid stations and a 30 hour cut off.
Sat 7 Aug 2027
103 miles

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North Downs Way 100

The North Downs Way 100 is a continuous 100 mile trail race following the North Downs Way from Farnham in the Surrey Hills to Ashford in Kent. The advertised route covers 103 miles (167 km) with approximately 11,000 feet (3,350 m) of total climb and is to be completed within a 30 hour cut off. The event is the 17th annual running and is listed as a Western States qualifier.

The course passes through Puttenham, Guildford, Ranmore Common, Box Hill, Reigate Hill, Oxted, Knockholt Pound (50 mile point), Wrotham, Detling, Hollingbourne, Harrietsham and Charing before finishing at the Julie Rose Stadium in Ashford. Terrain is approximately 80 percent trail and 20 percent road. The route is marked by national trail acorn posts plus reflective tape, marker arrows and chalk at major junctions, but runners remain responsible for navigation and must take care at several un-mars halled road crossings.

There will be a minimum of 12 fully stocked aid stations offering options for vegetarian, vegan and gluten free diets, with hot drinks from Knockholt onwards and hot food at select locations. Drop bags are transported to specified aid stations and the finish and have size limits. Pacers are permitted from Mile 54.5, and crews are allowed at listed crew points with one vehicle on course at a time. Mandatory kit, on-course medical provision and finish awards including buckles for sub 24 hour and 24 to 30 hour finishers are specified by the organisers. Visit the organization's website for the most recent information.

103 mi
100 Mile

Events nearby

A scenic 10K through the private grounds of Loseley Park in Surrey on 6 September 2026, with timed results, finisher medals and official photography.
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Guided 10 km trail run around Silent Pool near Guildford, following parts of the North Downs Way and Netley Heath forest. Sessions run at dusk or at night with headtorches in a led group and a recommended pace of about 10 min per mile.
A team endurance event across the South Downs covering 100 km in under 30 hours, with teams of four or a relay option and support crews meeting at checkpoints.
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