Nuclear Fallout

NOV
7
2026
Nuclear Fallout at Nuclear Essex hosts winter muddy obstacle races over 6 km, 12 km or a 24 km endurance format with dozens to hundreds of obstacles across farmland and woodland.
Sat 7 Nov 2026
Fallout – 6k Fallout – 12k Fallout Oblivion Maxx – 2...

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Nuclear Fallout : Nuclear Essex

Nuclear Fallout is a winter muddy obstacle race held at Nuclear Essex in Brentwood, Essex. The course crosses farmland, woodland, lakes and muddy terrain and includes natural and man‑made obstacles such as the Deathslide, Travelator and a multi‑lane zip wire into water.

Distances available:

  • 6 km
  • 12 km
  • 24 km Oblivion MAXX

The 6 km course features over 40 obstacles and is set on late season terrain that includes bogs and wet sections. The 12 km option is two 6 km laps and includes 70 plus obstacles. The Oblivion MAXX covers multiple 6 km laps and lists 200 plus obstacles overall for the endurance format. All races are chip timed and allow racers to skip obstacles without penalties.

Included on event day are hot washdowns, changing facilities, buoyancy aids for water obstacles, a free car park, free bag drop, free finishers photo and a finishers medal for every finisher. Spectators may attend for free. Under 16s must be accompanied by a paying participating adult. The event features an event village with food, drinks and merchandise and is described as an award winning permanent course. Visit the organization's website for the most recent information.

24 km
Fallout Oblivion Maxx – 24k+
12 km
Fallout – 12k
6 km
Fallout – 6k
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