Wear fast-drying, breathable fabric t-shirts/base-layer/tights/shorts that you are happy to get VERY dirty and wet (our technical t-shirts are brilliant). Remember cotton gets heavy & cold when wet – skin dries quickest, less is more! Tie laces on trainers tightly otherwise they will get sucked into the mud (the bigger the grip the better, strictly NO studs or spikes). Bring a change of clothes, shoes & towel. A few black bin bag(s) for your post race wet kit is a good idea!


We encourage you to bring your friends and family to come along and watch (there is a small £2 pp spectator entrance charge, admission for children under 16yrs is free).  All spectators will need to sign in at registration before entering the event village.

Spectators are reminded that entering our private land is at their own risk. The entire event is Health & Safety checked prior to and throughout race day. Spectators must make their own decision as to whether they can reach or undertake the journey to spectating areas, which due to the nature of the sport, may be on uneven terrain.

There are excellent spectator obstacle viewing areas in and around the village. A course map in the event village shows spectator accessible zones. Follow the black spectator signs to designated viewing areas.  Access to the full course is prohibited due to safety concerns. Please tell your supporters to adhere to the ‘No Entry’ signs and not to walk across fields of crops. Well-behaved dogs on leads are welcome, please clear up after them.


You’re welcome to camp free of charge onsite at Nuclear Races from Friday night –Sunday. The camping area is a grass field with no facilities except toilets. Please be mindful and respectful of other campers and our neighbours at night/early in the morning. You will need to pre book your pitch. Nearest Town : Ongar 5 minute drive

Changing your booking

My friend decided not to run in the event. Can I take his/her place after the transfer deadline has passed?

No, due to safety and emergency concerns, no substitutions are allowed after the transfer date has passed.

Refunds: We do not offer refunds.


Can team members start at different times?

Yes of course, you can race in different waves, but where’s the fun in that?

Where/how can I make a team/group booking?

Our online booking system on our website enables you to book your team either individually or as a group.

What’s the minimum team size?

Teams must have 5 or more individuals. Discounts are available for groups of 10 or more people.