Chiltern 50 Ultra Challenge

SEP
25
2027
Looped trail options from 10K to approx 100 km around the Chilterns with covered rest stops, GPS tracking and on-site camping at Henley Basecamp.
50 kilometers 25 kilometers 10 kilometers

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Chiltern 50 Ultra Challenge - Henley Basecamp, 25 Sept 2027

The Chiltern 50 is part of the Ultra Challenge series and takes place in the Chilterns countryside with a Henley Basecamp. The event offers looped trail routes that pass through historic trails, rolling hills and nature reserves. The Henley Basecamp provides on-site camping and parking, a Saturday night meal and a bar.

Distances available include:

  • 50 km loop
  • 25 km loop
  • Henley 10K
  • Approx 100 km full challenge across two days with camping packages

All entrants receive covered rest stops roughly every 12.5 km, with major stops at about 25/50/75/100 km. Each stop includes food and drink; every snack and main meal stop is included in the entry. Hot drinks, water and energy drinks are supplied, and dietary requirements are catered for. Lighter options are available for runners and a finishers meal is provided.

Route signing and tracking are provided by visible markers, glow-sticks at night, Google route maps in the event app and GPS tracking. A timing system scans participants at rest stops to log progress. Medical support includes doctors, paramedics, first aiders, podiatrists and massage teams, and self-help blister and tape supplies are available at stops.

Additional options listed for the event include Ultra March, Trailblazerz and Solo Start. Shuttle transfers to nearby stations and parking for supporters are provided. Visit the organization's website for the most recent information.

50 km
50 Km Loop
25 km
25 Km Loop
10 km
Henley 10k

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