All 2025 events now open for booking!

For a limited time, we're offering the opportunity to participate in all three of our 2025 Humanity Direct races at a special price!

You can choose to book all three ultras or half ultras. The events include:

  • Amersham - 8th March 2025
  • Chiltern Challenge - 19th July 2025
  • Tring - 20th September 2025

Just like with individual race entries, all proceeds will be donated to Humanity Direct, helping fund essential, life-changing surgeries for children in Uganda.

Pricing

Ultra series

£150

Half ultra series

£95

The entry fee will be donated to fund a vital operation, or alternatively enter for FREE, if you commit to raise funds for Humanity Direct.

If you're fundraising book now through our system, then visit Humanity Direct's website to register yourself.

Please note: a 2.5% service charge, levied by the registration software, will be added to your total. We are using a new entry system that takes payment through the secure system Stripe. No payment information is retained by Extreme Energy, or our entry system tool.

Email us on info@xnrg.co.uk if you have any questions about your options.

Book 2025 ultra series Book 2025 half ultra series

If for some reason you are not able to make the event you have entered, the XNRG refund policy is that we will give you 70% refund of your entry fee up to 1 month before the Amersham Ultra. Alternatively, you can choose to donate your entry fee to the charity. All entry fees, sponsorships and donations go directly to the charity and directly to helping children with life changing operations. The costs of putting on the events are covered by the two founders of the charity - Nick and Marc.

These options you can execute on your Ultrabritain entry page.

After this time we are sorry there will be no refunds. Refunds will be to your booking credit card.

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Included Events

Humanity Direct Amersham Ultra

8th Mar 2025

25 / 50 km

1 day

282m

Humanity Direct Chiltern Challenge

19th Jul 2025

10 - 50 km

1 day

258m

Humanity Direct Tring Ultra

20th Sep 2025

10 - 50 km

1 day

135m

We can't wait to see you there! Questions? Say hello on info@xnrg.co.uk

Book 2025 ultra series Book 2025 half ultra series
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