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

Sat - Sun Jun 6-7

Endure24 Reading

Reading

Backyard Ultra

8 km

A 24-hour relay at Wasing Park, Reading on 6–7 June 2026 with Solo, Pair, and Team entries on an 8 km trail lap, event camping and an event village, plus charity entry options and tiered team pricing.

Saturday Jun 6

Race for Life Pretty Muddy Watford

Watford

Mud Run / Obstacle Run

5 km

A 5k obstacle course at Cassiobury Park where participants climb, crawl and slide across a largely flat, mixed-terrain route. The event supports fundraising for cancer research and includes a medal, refreshment facilities and on-course assi..

Saturday Jun 6

Race for Life Pretty Muddy Milton Keynes

Willen Lake

Mud Run / Obstacle Run

5 km

A muddy 5 km obstacle course at Willen Lake in Milton Keynes with timed waves, a minimum fundraising target and on-site facilities. Open to participants aged 13 and over and organised by Cancer Research UK.

Saturday Jun 6

Race for Life Pretty Muddy Reading

Reading

Mud Run / Obstacle Run

5 km

A 5k muddy obstacle event at Prospect Park, Reading where participants climb, crawl and slide over grass, slopes and woodland. Organised by Cancer Research UK, the event includes on-course marshals, a fundraising target and a finishers meda..