This event has taken place

Congratulations to everyone who took part. We're waiting on information about the next edition of this event.

Did you race? Let the community know how you got on and leave a review.

Add a review

Want to see all previous and future editions of this event, find them below.

Nuclear Blackout

Kelvedon Hatch, Brentwood, Essex

Kelvedon Hatch Secret Nuclear Bunker, Kelvedon Hatch, Brentwood, UK

Sat 11th September 2021

Organiser's Description

Blackout is a 5k multi-lap obstacle loaded night race over mixed, muddy terrain. This race will launch you out of your comfort zone. It‘ll lead you into unknown territories, testing all of your senses to the maximum, as you negotiate endless and overwhelming obstacles by the light of a head torch.

This course is designed to challenge some basic fears including darkness and heights, as well as testing strength, endurance, agility, stamina and all round fitness in the harshest conditions. How many 5k laps can you do in 2 hours?


5 km laps 2 hours


Done this event?

First-hand event reviews from people who have been there, done that and got the breathable T-shirt, really help everyone choose their next event.

Add a review


Kelvedon Hatch, Brentwood, Essex


For a limited time, subscribe to and get a free tailored training plan and access to your own coach.

A personalised programme worth £75. Unsubscribe instantly anytime.

By signing up you agree to our privacy policy and terms

Image: ©