The Chanctonbury Chase

MAY
16
2027
Looped trail event at Wiston Estate with a marked 10K circuit and distances from 10K to 100K, plus aid stations, a dedicated 100K area and on-site camping.
Sun 16 May 2027
100 kilometers 50 kilometers Marathon Half Marathon 10 kilometers

Always double-check with the organizer's website! This page may contain affiliate links.

About the race

The Chanctonbury Chase is a looped trail event set on Wiston Estate within the South Downs National Park. The course follows a fully marked 10K circuit (one loop, 800 ft) that runs through rolling hills, woodland tracks and estate roads, with regular passages through a central Event Village.

Distances available are:

  • 10K One loop
  • Half Marathon
  • Marathon
  • 50K
  • 100K solo and team

The looped format brings runners back through the Event Village on each lap. Aid stations are positioned every 10K and provide water, energy drinks, gels, fruit and sweet snacks. The event includes chip timing with live results, course marshals, medical cover, toilets in the Event Village, baggage drop, race photography, food and coffee vendors, a bespoke finisher medal and free parking subject to availability. The race cut off time is 18 hours across all distances.

A dedicated area is reserved for 100K solo runners and 100K teams for kit, nutrition and crew support throughout the event. Camping is available within the Event Village on the grounds of Wiston Estate; pre-pitched tents are offered for groups or pairs, with tents positioned close to the start line and available to add during checkout. Visit the organization's website for the most recent information.

Events nearby

27 mile night time group training run at Devil's Dyke with about 1,000 m ascent, guided route and required head torch to practise gear, pacing and night running skills.
Celebrate Fireworks night with a flexible distance run along the flat Downslink trail in Southwater. Choose your distance on the day and run as many laps as you like over seven hours to earn a bespoke medal.
Trail races from Westerlands, Graffham offering a 50k loop across five long trails and a 13 mile half on three trails with aid stations and electronic timing.
A 14 mile trail run on 22 Nov 2026 with an initial climb, downloadable route maps, water stations, limited parking and a 50-place field.
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