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

Friday Apr 17

Phoenix Fridays

Backyard Ultra

...

Join PHOENIX Fridays Run for a Tenner for a relaxed timed riverside run with flexible rock up and run starts supporting Rays of Sunshine. Choose distances from 5 km to ultra and earn a special medal on a flat towpath.

Saturday Apr 18

Windsor 50 Ultra Challenge

A looped trail challenge from Windsor Racecourse on 18 April 2026 with **50 km**, **25 km**, and **10 km** options along the Thames Path and Great Park, featuring signed routes, GPS tracking, marquee rest stops, medical support, and finishe..

Saturday Apr 18

Chiltern Ridge Classic 50k

Wendover

50 km

A 50K trail ultra across the Chiltern Hills from Berkhamsted Castle to Hampden Meadow via Ashridge, Ivinghoe Beacon, Coombe Hill and Whiteleaf Hill. Fully marked route with three checkpoints and a nine hour time limit.

Saturday Apr 18

Phoenix Running - Walton-on-Thames

...

Enjoy a flat riverside run along the Thames with a flexible timed format. Choose your own distance from 5km to an ultra marathon on a scenic 5.3km out and back loop.