Articles

Belgian Ultrarunner Karel Sabbe's Record-Breaking Pacific Crest Trail Run Showcased in New YouTube Documentary

Explore Karel Sabbe's record-breaking Pacific Crest Trail run in a riveting documentary. Jour..

Trail Running: How it Can Help Reduce Stress and Anxiety

Trail running is an effective way to reduce stress, anxiety, and improve physical and mental he..

Trail Running vs. Road Running: Which One Is Right For You?

When it comes to running, there are two primary options to choose from: trail running and road..

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

Saturday May 9

Chiltern Hills 100K

Chesham

100 km

A 100K trail race on an anticlockwise loop of the Chiltern Hills, starting and finishing in Chesham and passing The Ridgeway, Ashridge Estate and other landmarks. Fully marked with open GPS tracking and organised support at aid stations.

Saturday May 9

Goring Gap Trails

Goring Gap Trails offers ultramarathon, half marathon and walking distances near Reading on 9 and 10 May 2026. The TRA licensed event includes affiliated and unaffiliated entry options and on site camping.

Saturday May 9

Magna Carta Summer

Riverside lapped races from Wraysbury Skiff & Punting Club near Runnymede, with 10 km, half marathon and marathon options along the Thames Path. The marked route includes marshals, a bespoke finisher medal and podium prizes.

Sunday May 10

Chilterns 30km

Tring Station

18 mi

30 km

A guided 30 km trail run in the Chiltern Hills with trail technique instruction, checkpoints, a finisher’s medal and Trees not Tees certificate, based near Tring Station with limited spaces.