Rush Weekend - Nuclear Races

Kelvedon Hatch, United Kingdom • 9 May 2026

Nuclear Rush

Nuclear Rush is a series of muddy obstacle course races held on the Secret Nuclear Bunker Estate in Brentwood, Essex. Courses run across farmland, woodland and lakes and feature a mix of natural and man-made obstacles, water hazards and mud sections. Signature obstacles include the Deathslide, Travelator and para-plunge zip lines into water.

Available distances

  • 1.5 km - Rush Rookies (children)
  • 3 km - Rush Rookies 3K / Rush Rookies Pro
  • 4 km - Rush Family
  • 6 km - Adult Rush (40+ obstacles)
  • 12 km - Adult Rush (70+ obstacles)
  • 38 km+ - Rush Oblivion Storm (lap format)

Events provide race-day facilities such as hot washdowns, changing areas, buoyancy aids for water obstacles and a free car park. Participants receive chip timing, a finishers medal, a free finishers photo and a free bag drop for most races. Young categories specify age limits and supervision requirements; for example, the 6 km race is open to ages 13+ with adult accompaniment required for 13–15 year olds, and the 12 km race is age 16+.

The Rush Oblivion Storm is an advanced, multi-lap distance that requires completion of multiple 12 km laps for the Oblivion medal; competitive Oblivion entries are subject to additional mandatory penalty obstacles and band rules. Standard adult races allow participants to skip obstacles without penalty. Visit the organization's website for the most recent information.

Race information

38 km
Rush Oblivion Storm - 38k+
12 km
Rush - 12k
6 km
Rush - 6k
Visit the organization's website for the most recent information.
Trail runs nearby

A 100 mile continuous Thames Path race from Richmond to Oxford, mostly on groomed trails and riverside paths. The route gains about 1 900 ft, includes aid stations and mandatory kit checks, and must be completed within 30 hours.

Experience the scenic trails and woodland paths of Hampstead Heath in this annual charity event featuring chip timed races and a community fun run with views of the London skyline.

A stage trail relay along the Roach Valley Way covering 23 miles in four legs for teams of four. Proceeds benefit Havens Hospices and each leg is timed and scored by marshal teams while runners navigate using maps and way markers.

A mainly off road 15k trail run at Trifarm, Boreham on 06 May 2026 featuring an anticlockwise route on public footpaths and bridleways, on-site parking, water points and manual timing.

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