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Brentwood United Kingdom Nuclear Race Nuclear Challenge Cup 2020

February 06, 2021

The Secret Nuclear Bunker

Kelvedon Hatch, Brentwood, Essex, United Kingdom


February 06, 2021

Add to Calendar 02/06/2021 09:00 AM 02/06/2021 11:00 AM Brentwood United Kingdom Nuclear Race Nuclear Challenge Cup 2020 Nuclear Races
The Secret Nuclear Bunker
The Secret Nuclear Bunker, Kelvedon Hatch, Brentwood, Essex, United Kingdom Nuclear Races use-title true MM/DD/YYYY

Race Start Time:

Male 8:50am , Female 9.00am


The Secret Nuclear Bunker
Kelvedon Hatch
Brentwood, Essex, United Kingdom - View Map

Distance & Course Length:



Nuclear Races

41 Past Events, 0 other upcoming races


Average rating: 5 / 5 from 1 reviews.

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Who’s Attending?

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Cost & Pricing:

General CostUntil
OCRWC Qualifying Event. We do not offer refunds. Racers are able to transfer names and waves (space dependent) up until 1 week before race-day. Prices after above TBD.

What You Get / What's Included:

  • Finisher top
  • Medal
  • Action photos
  • Hot wash-down
  • Heated changing tents
  • Hot cup of finish line tea
  • Camping


Course Description:

A fair, competitive wave at November’s Nuclear Fallout. This additional event is exclusive to the first wave of the day. It’s a chance to prove skill, strength & speed & be crowned the fastest and fittest male & female obstacle racer in the land. Win by completing the adjudicated 12k course, podium winners will be announced & presentations made on race-day. Prizes include cash, podium Challenge Cup medals, leader board recognition for elite category podium positions.
There are two ways you can compete:
* If you win elite, you cannot claim age group prize.
The Nuclear Challenge will be chip timed and will have mandatory & penalty Obstacles.
All mandatory obstacles must be completed, these make up 80% of all the obstacles. These are all achievable and multiple attempts are permitted.
The remaining obstacles are our signature obstacles – these are more technical in nature & marked with a P. You will only be allowed one genuine attempt (any non-genuine attempt may incur a time penalty). There is a penalty for non-completion.
Penalties will be designed to take approximately 3-4 times longer to complete than the obstacle you failed and designed to work the same muscle groups. Penalties incurred by females may have shortened distances or lighter weights where appropriate.
Nuclear step-ups will be provided on appropriate obstacles in relation to a runner’s height (failure on an obstacle should not factor in the inability to reach it). The intention is not to give help or an unfair advantage to complete an obstacle but rather allow those who need it to be able to get to the position to be able to attempt the obstacle.
Obstacles to be completed as directed by marshals/adjudicators.
Complaints about “fairness and other competitors” must be made 15 minutes after completion of the race. The Race Director’s decision is final.

Aid Stations:

At least 2 or more water stations on every course. Medic teams will roam the course in 4x4 vehicles and are also stationed at in race village. Water safety teams are in the lake zone water. Buoyancy vests available. Drink at the finish line


1st Gold Challenge Cup Medal, 2nd Silver Challenge Cup Medal, 3rd Bronze Challenge Cup Medal for each age group. Age groups are: 18-24yrs (m/f), 25-29yrs (m/f), 30-34yrs (m/f), 35-39yrs (m/f), 40-44yrs (m/f), 45-49yrs (m/f), 50-54 (m/f), 55-59 (m/f), 60+ (m/f)


£500 prize money male/female
Perpetual engraved Nuclear Challenge Cup
Nuclear Challenge Cup Medal
Race-day podium presentation
HQ & race-village leaderboard recognition

Race-day podium presentation
Nuclear Challenge Cup Medal
£400 prize money male/female

Race-day podium presentation
Nuclear Challenge Cup Medal
£300 prize money male/female

Race-day podium presentation
Nuclear Challenge Cup Medal
£200 prize money male/female

Race-day podium presentation
Nuclear Challenge Cup Medal
£100 prize money male/female


Entry to race-village £3. Spectators have access to approx 15 obstacles in and just around the race village/start/finish in designated areas


Spectators have free parking in grass field next to race village.

Post Party:

Race village has a festival atmosphere, live music, good food options including vegetarian, bar, children's entertainment, shops, medal engraving, finish line obstacles, mc startline.


Number of spaces available: 150
You don't need to be able to swim to take part at Nuclear, there are buoyancy vests which can be worn for non swimmers & water safety crew in lake water at all times.
Leave a bag (1 per person) before your race & collect it at the finish zone after the wash-down. Bring clean dry clothes/keys & a bit of money in your bag for afterwards. The large bag-drop is free & staffed. Please use it at your own risk.


There are no official teams, you can race indivdually or as a team (10 or more receive a discount). Sign up using the team option at time of booking.

Coupons / Discount Codes:

Please see our obstacle course race discount & promotion page for all the latest discounts, promos, promotions, discount codes, and coupon codes for Brentwood United Kingdom Nuclear Race Nuclear Challenge Cup 2020. There also may be one listed at the top of this page.