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Welcome to Nuclear Races

Nuclear Races are one of the original obstacle and adventure race courses in Essex; delivering outdoor cross-country running events incorporating water, mud and obstacles at the Secret Nuclear Bunker Estate, Kelvedon Hatch, Brentwood.

Obstacle Course Events

Nuclear Rush 6km - 12km & Fallout 8km - 16km extreme muddy obstacle runs through mixed farmland & natural terrain including lakes, rivers, ditches, banks, hills, relentless woodland, open fields & thick Essex mud. Incorporated into our courses are endless crazy obstacles for you to negotiate – a mix of natural & mega man-made structures.

Night Runs

Nuclear Blackout is a 5km untimed, lapped obstacle run which starts at dusk & finishes two hours later.

It is no ordinary lap race: x-country running through woodlands, water, fields, ditches, hills, mud and obstacles as darkness descends and then entering & running through the 100ft deep, pitch black underground Secret Nuclear Bunker - A totally unique OCR experience!

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