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A not so short, sharp, shock to the senses

The Adrenalin Shock established in 2015- New routes, new obstacles on every race!


Due to the Covid-19 situation and a survey of our competitors, who want the full experience and one not marred by restrictions, the race on the 4th October is now postponed.

Next race will be on in: Spring 2021, TBC shortly.

All registrations will automatically be moved to the spring race 2021.

This is a unique obstacle course race as it features the KRYPTON FACTOR assault course, as seen on TV & Film, the most famous and arguably the hardest assault course in the UK.

A choice of 5km, min 37 obstacles and 10km, min 52 obstacles. Off road routes that depending on time of year, as spring routes are different to autumn, include marsh, bog, woodland, rough hilly ground interspersed with tracks and fields, and if that was not enough, at the end you will encounter 800 metres of deep mud and water between 24 plus obstacles to negotiate on route to the finish. The obstacles are evenly, tightly spread around the course. They are large and over half have more than one component to them, to climb, jump, wade, swing and crawl over and under. It will seem endless and you will need to dig deep and muster every bit of stamina to maintain your pace and position. The harder you push yourself, the more intense it will become and relief will only come when you cross the famous double K's finish line of the Krypton factor. This race is designed to minimise queuing at obstacles and run by ex parachute regiment soldiers, who know tough.

Don't believe us? Then check out the video from our spring race 2019 Running above...

A not so short, sharp, shock to the senses, guaranteed!

The races are held on Aske estate just outside Richmond North Yorkshire. A private estate set in beautiful rolling countryside right next to the Yorkshire dales national park.

Registration is now open for our spring race 2021 Adrenalin Shock Event! Select this link >>

Entry fee is £30 per entrant for the 10km course, or £20 per entrant for the 5km course. Teams are welcome. Be aware that there are a limited number of places for this race.

The minimum age for the 10km route is 16yrs.

The minimum age for the 5km route is 14yrs (must be accompanied by an adult/guardian).

If you wish to partner with Adrenalin Shock, please send your details by email to: info@adrenalinnylimited.co.uk

The initial meeting point will be Adrenalin main site, see Contact Us for directions.

If you would like to run for a good cause, please consider getting sponsored and raising money for our charity partner, ABF The Soldiers’ Charity. To do so, please complete the form at the following link and they will get in touch with you. Click here for details.






Check out some other clips filmed here at Adrenalin...

October 2019

October 2019
October 2019, the autumn race, an absolute gem of a course.

Girls doing it for themselves, March 2018

Girls doing it for themselves, March 2018
Girls run the adrenalin shock, wearing a go pro

Adrenalin Shock October 2018

Adrenalin Shock October 2018
This is the Autumn races, which consists of two 5km Laps for the 10km and one lap for the 5km race. Benefit is the obstacle are closer together and there are more of them on the 10km race The Main page or Spring(March or April) route has a seperate 10km & 5km routes and has an arduous river run on the 10km race. but obstacle are more spread.

Adrenalin Shock OCR September 2017

Adrenalin Shock OCR September 2017
Autumn 2017, a 5km circuit or route, run in laps
Krypton Factor Assault Course

Home of the Official Krypton Factor Assault Course!