Mud Tribe
Brentwood, United Kingdom • 5 Sep 2026
Mud Tribe (Nuclear Races)
Mud Tribe is a muddy obstacle course event organised by Nuclear Races in Brentwood, Essex. The event offers two route options and features mud, foam and a variety of on-course obstacles designed to be achievable without specialist upper-body strength. Participants navigate non-submerged water features and foam sections while moving at their own pace; the event is not chip-timed.
- 1.5 km : approx 1 hour, age 4+
- 5 km : approx 2 hours, age 7+
Included on event day are hot wash-downs, changing rooms, bag drop, a finisher medal and a free finisher photo with options to purchase more. The course includes a mix of obstacles that the organiser describes as achievable for a range of ages. There is also a female-only Mud Tribe Sisters wave as an additional start option. Under 15s must be accompanied by a paying adult.
Mud Tribe is located in Brentwood, Essex. The site is roughly 15 minutes from the A12, M25 and M11, and about 15 minutes by taxi from either Brentwood mainline station or Epping station. Visit the organization's website for the most recent information.