Nuclear Fallout

NOV

7

2026

Take on Nuclear Fallout at Nuclear Essex near Brentwood, a winter obstacle race across farmland, woods and lakes with muddy terrain and signature challenges like the Deathslide. Distances from 6 to 24 km, with chip timing, a finisher medal and free photo.

Sat 7 Nov 2026

Brentwood, East of England

Website

Fallout - 6k Fallout - 12k

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Nuclear Fallout overview

Nuclear Fallout is a winter obstacle race held at the Nuclear Essex site in Brentwood, Essex. The course runs across farmland, woodland, lakes and muddy terrain and includes both natural and man-made obstacles, including the Deathslide. The event is chip-timed and provides finishers with a medal and a free finisher photo. On-site facilities listed include hot washdowns, changing facilities, free bag drop, free car park and buoyancy aids for water obstacles. Spectators are welcome.

Race distances and key details

6 km - Age 14+, approx. 2 hours, 40+ obstacles.
12 km - Age 16+, approx. 2 hours, 70+ obstacles. No penalties for skipping obstacles.
24 km+ (Oblivion MAXX) - Age 17+, approx. 5.5 hours, 200+ obstacles across laps.

Prices shown on the event page: the 6 km current price £69, the 12 km current price £79, and the 24 km price £140. The event location is described as 15 minutes from the A12, M25 and M11, and about 15 minutes from Brentwood or Epping stations by taxi. Visit the organization's website for the most recent information.

12 km

Fallout - 12k

6 km

Fallout - 6k