Award Winning Obstacles

Voted Best Value Event

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18TH & 19TH MAY 2019


*prices shown exclude booking fees
*OCRWC Qualifier 1st wave exempt

Location: Brentwood, Essex, CM15 0LA, UK
Distance:7km or 12km
Prices:7k - £63* 12K - £73*
Water stations:On all courses
Pitstop:Hot squash, fire pit & muddy hugs - a chance for a quick re-charge
7k minimum age:13-16 years *must be accompanied by an adult 17+
12k minimum age:16 years


Choose from 7km or 12km course distances over ultra-gritty, properly muddy, obstacle-loaded farmland set in the heart of the Secret Bunker Estate, Essex.

Minimum age 7km – 13-16yrs must be accompanied by an adult 17+
Minimum age 12km – 16yrs

Nuclear’s well known for delivering award winning events with big, high quality achievable, man-made and natural obstacles designed to test every ability of fitness on fast-paced, flowing, punishing courses over epic varied terrain. Expect the infamous Deathslide, Zip-lines & 120m Gorilla bars  at this event plus loads more.

Join us for a chilled OCR festival weekend packed with obstacle racing for all the family (Rookie kids included), camping, live music & entertainment for all ages.

Race Format:

  1. The course distances are 7km & 12k. This event is NOT a lap race.
  2. Your wave will be made up of 7 & 12k runners. You will run together until 7k where 12k runners will split. There’ll be warning signs, arrows and a Nuclear marshal at the split to guide you.
  3. There are 90+ obstacles on the 12k, 50+ on the 7k courses.
  4. Attempt as many or as few obstacles as you like – it’s your challenge!
  5. There are no penalties.
  6. A Nuclear Rush survivor medal & technical tshirt plus hot cup of tea at the finish.
Free Wild Forest induction with every ticket.