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Chiltern Challenge

Name: Chiltern Challenge
Start: 2025-07-19
End: 2025-07-19
Location: Princes Risborough

Princes Risborough, United Kingdom • 19 Jul 2025

The Humanity Direct Chiltern Challenge is a one-day ultra running event held in the scenic Chiltern Hills, starting and finishing at Princes Risborough School in the South East of England. Participants can choose from three distances: 10km, 25km, or 50km, with ascent gains ranging from 258 to 871 meters. The course follows well-marked circular routes using National Trails and footpaths, featuring multiple checkpoints with food and water for longer distances.

The event offers a supportive atmosphere with fully stocked aid stations, medical cover, free parking, transport from the train station, and refreshments at the finish. Entry fees support Humanity Direct, funding vital surgeries for children in developing countries. Visit the organization's website for the most recent information.

United Kingdom South East (England) Princes Risborough

Race information

Website

50 km

25 km

10 km

Visit the organization's website for the most recent information.

Trail runs nearby

Sat - Sun May 23-24

London 2 Brighton Ultra Challenge

...

A long distance trail challenge from Richmond upon Thames to the Brighton coast with routes from 100 km to shorter distances. The event features marked trails, GPS tracking, staffed rest stops with food and medical support and camping optio..

Saturday May 23

The St Albans Sixer

St Albans

Backyard Ultra

4 mi

7 km

A backyard ultra at the Lower Red Lion in St Albans where runners complete a 4.167 mile (6.706 km) loop every hour until only one runner remains. Entry is limited to 90 and includes drink tokens and a commemorative glass.

Sunday May 24

Richmond Park Marathon

Richmond

26 mi

A trail marathon in Richmond Park covering 26.2 miles over three laps with start and finish near Sheen Gate. The route is waymarked and supported by drink stations, chip timing, medical cover, marshals and a baggage area.

Monday May 25

Rebellion 10km

Marlow

10 km

A 10 km trail race at Marlow Rugby Club on May 25, part of the Ales & Trails series, featuring trails, woodland and Thames towpath. Entry includes a medal, a Rebellion pint cup and a free drink at the finish.