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

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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.

100 km
100k Solo
100 km
100k Team Relay
50 km
50k
Marathon
Marathon
Half Marathon
Half Marathon
10 km
10k

Events nearby

A 10 hour, 10 lap endurance event at Pippingford Park with 3 mile, 4 mile or 5 mile loop options and up to 700 ft climb per lap; finishing grade is based on shortest loop.
Trail races at Cowdray Estate on 10 October 2026 offering 10 mile, 10 km, 5 km and a new 3 km kids run alongside Cowdray Farm Shop Apple Day.
Four seasonal trail events at Cowdray Estate offering 3 km to 10 mile options, CaniRun and kids races with series scoring, prizes, linking medals and free photos.
Timed multi-lap running at Buchan Country Park in Crawley with lap based distances from 5 km up to ultra, flexible start times and a seven hour time limit. Medal and lower cost no medal entry options are offered.
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