Ultra marathons in stunning locations

The Druid's Challenge

7th Nov 2025

83 mi

3 days

1931m

The Druid's Challenge

The Druid's Challenge

£77

More details Booking closed

Pilgrim Challenge

7th Feb 2026

66 mi

2 days

2374m

Pilgrim Challenge

Humanity Direct Amersham Ultra

7th Mar 2026

10 - 50 km

1 day

149m

Humanity Direct Amersham Ultra

The Druid's Challenge

13th Nov 2026

83 mi

3 days

1931m

The Druid's Challenge

Did you know our events are designed for runners and walkers of all abilities? At XNRG, we provide a supportive and inspiring environment for every participant.

We offer 10km trail runs that are perfect for beginners or those looking for a shorter, scenic challenge. Our 25km distance provides a rewarding step up with varied terrain and stunning views, or experience the ultimate test of endurance with our ultra marathons of 50km or more — choose a single-day ultra or take on a full weekend event!

Whether you're taking on your first trail race or pushing into longer distances, there’s a challenge here for you.

Be part of an unforgettable adventure!

Support Neil's 60-Hour Birthday Challenge!

To mark his 60th birthday, XNRG founder Neil Thubron is taking on an extraordinary test of endurance – 60 hours of non-stop running and walking, aiming to cover over 200 miles, all to raise money for three incredible charities.

He’ll be tracked live the whole way – and he’d love your support, whether that’s through a donation or joining him for a few miles (especially at night!).

Find out more and donate
FAQ

We've answered a range of common questions in our FAQ. For other questions, say hello on info@xnrg.co.uk.

We are delighted to support SheRACES and commit to providing a great experience for female participants. Find out more

Join the family

Subscribe to our mailing list

Loading...
We're proud to partner with...

Join the family

Subscribe to our mailing list and keep informed

Loading...