Chiltern 50 Ultra Challenge

A walking, jogging and running challenge from Henley-on-Thames through the Chilterns, offering 50km, 25km and 10K options from a showground basecamp.

Chiltern 50 Ultra Challenge is a fully supported walking, jogging and running event through the Chilterns countryside, starting and finishing at Henley Showground. Routes follow classic trails including the Thames, Shakespeare’s Way, the Icknield Way and the Chiltern Way, with options to suit different abilities.

Date: Sat 25 Sept 2027

Distances and start times:

• Full 50km Challenge – 07.00am (Age 16+)
• Henley 25km Loop – 09.00am (Age 14+)
• The Henley 10K – 10.00am (Age 8+)

Location (Event HQ):
Henley Showground, Marlow Road, Henley-on-Thames, Buckinghamshire, RG9 3AS, UK

Highlights: marquee rest stops, nutrition and hot food, medical cover, free massage, and optional camping at the basecamp.