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Our Upcoming Events

  • 01Dec 2017

    The XNRG Santa Virtual Ultra Challenge (SVUC)

    The XNRG Santa Virtual Ultra Challenge (SVUC): join us to run, walk or jog your own ultra wherever you like this December 1 - 24 December 2017 Introducing our new Virtual Ultra Challenge - a new addition to the UK running calendar. During the short days and long nights of December we want to keep you motivated and reward you for the hours you put in running and walking. You can enter this event without having to travel to a race ...
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  • 16Dec 2017

    Desert Training Kit Run

    Desert Race Preparation Kit Run. Welcome to the Desert Race Kit Run which is £10 to enter! Based at Farnam, the 20 mile route is along the North Downs Way and will enable those who have places in the 2018 MDS to test their kit along the 20 mile route. Note: Those registered on the Extreme Energy Desert Running Package 2018 do not need to enter. If you intend to attend just drop me an email so I can count you ...
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  • 03Feb 2018

    Pilgrim Challenge 2018

    Pilgrim Challenge (3rd-4th February): a two-day, 66-mile ultra marathon over the legendary North Downs Way Run, jog or walk your way across the impressive North Downs Way - firmly established as one of our most popular events. Follow in the footsteps of pilgrims travelling to Canterbury as you pass through stunning landscapes steeped in ...
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  • 03Mar 2018

    UTMB® Seminar

    UTMB® Seminar 2018 - Helping you succeed in the Alps One Day, five incredible speakers, helping you to succeed with ultra running in the toughest conditions! The XNRG UTMB® Seminar: The objective of the event is to share as much information as possible from experienced UTMB®, TDS®, CCC®, OCC® competitors and other specialists to enable more British people to complete their event, plus allow you to get ...
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Corporate Events with a Difference

Develop your team and client relationships with challenging, fun events from Extreme Energy. Find out more >

I really enjoyed it and got a lot out of it that I could apply.

We wanted to organise some customer events that were different from the usual eating and drinking. Extreme Energy organised a fantastic mountain biking event for us over two days in the Chiltern Hills. With a mix of trail lengths,, orienteering, and downhill thrills there was a challenge for everyone, whilst staying within safe bounds. The organisation was superb, including guiding, technical and medical back up and just general encouragement. We know that the standard of professionalism reflects back on to us as the hosts, and we were delighted with our customer’s feedback. Bob Falconer CEO Gamma

QinetiQ are pleased to have used XNRG for their team building as XNRG have the right values when it comes to teamwork and were always there to help – the QinetiQ team knew XNRG would not let anyone down. QinetiQ chose XNRG on the basis of: 1) XNRG are inclusive and every competitor is treated the same be it the fastest or the slowest person; 2) XNRG clearly have a love of the challenge and want people to succeed and will do everything they reasonably can to make it happen – people having fun and succeeding are in the XNRG DNA; For what we did XNRG represented very good value for money.

Just to say thank you for the fantastic event you organised yesterday in Wendover Woods yesterday. We both had such a great time and didn't come home completely covered in mud as we thought we would be. Hope you decide to do it again next year.

Neil's pitch was very Inspirational (even if he is completely mad !) and really made me think about goal setting.