Award Winning Obstacles

Voted Best Value Event

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19TH & 20TH MAY 2018


*prices shown exclude booking fees

Online ticket sales for Nuclear Rush are now closed.

Tickets will be available on race-day at registration for any afternoon only unsold wave times.
Pricing 12k £80, 7k £70 – cash only
Location: Brentwood, Essex, CM15 0LA, UK
Distance:7km or 12km
Prices:7k - £70* 12K - £80*
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 & 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.

The top 10 in age group and gender taking part in 12k Rush Saturday and Sunday will qualify for the 2018 OCR World Championships to be held at Nuclear Races.

13-17 OCR World Championship qualifying criteria here.

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.