COVID-19 Lateral Flow Test

We are working closely with the council to make our event as safe as possible. This means one of the precautions we are putting in place is that anyone attending our event on Sunday 22 August, MUST show a negative lateral flow Covid-19 test before being allowed on site. It is our responsibility to do everything we can to reduce the spread.  

What do I do now?  

- Unsure of how to do a test, watch this video here: https://youtu.be/S9XR8RZxKNo
- You can order free lateral flow tests from the Government at: https://www.gov.uk/order-coronavirus-rapid-lateral-flow-tests    
-  Everyone 12 years and above must be tested  
-  Complete the test no more than 24 hours before your arrival time at Mud Monsters Run  
-  Follow the instructions included with the test on how to report results on the Government website https://www.gov.uk/report-covid19-result  
-  You will receive an email or text confirming the result shortly after reporting, you will need to show this email/text on entering the event car park  

If you test positive: You will not be allowed to attend the event. We ask that you email info@mudmonstersrun.co.uk by midnight Sunday 22 August with a copy of your positive result, full name and DOB. We’ll get back to you the week after the race to arrange transfer of your ticket to our 2022 event.   

How so I transfer my place to someone else?

PLEASE NOTE: Transfers for our event on 22 August 2021 close on Sunday 01 August 2021. To transfer your place to someone else you will need the email address you signed up with and your booking reference number, which you can find on your 'payment receipt' email, then follow the instructions below:

- Go to: https://www.njuko.net/mud-monsters-june-2020/check-registration

- Enter your email address and booking reference and click on 'Check my registration'

- Click on 'Transfer my registration to a friend'

- Enter the email address of who you wish to transfer your place to and click on 'Transfer registration'

That's it! After completing this process your registration will be transferred to your friend.

What does the Mud Monsters Run involve?

The next Mud Monsters Run events take place on various dates you can see all our current events here. All events are held at the Mud Monsters site in East Grinstead, West Sussex.  You can choose whether to run 5k, 10k or 20k (two laps of 10k route). It consists of a fun challenging run through the lovely Sussex countryside, which combines fields, woods, puddles, swamps and streams with lots of challenges and obstacles along the way and of course mud, mud and more mud. At the end every runner will get a medal to prove that you made it as well as a goody bag, free photos and more.

Entry fees

Online entries close midnight on Wednesday 08 August. For details on current prices please check our pricing page here. Teams must consist of the minimum number of runners or more and will get a 10% per runner discount.

First Aid

We always have a brilliant medical team onsite at the race providing first aid. The first aid area will be located in the event village. Sussex 4x4 Response will also be present at the race who are equipped with defibrillators.


Who can compete

Pretty much anyone can compete, we welcome a wide range of fitness abilities. Mud Monsters Run is designed so that most people can get around and if you run fairly regularly then you should be fine, but it is amazing what a bit of determination can do on the actual day. Of course your safety is important to us and you may need to consult your doctor before the race. To take part you must be at least the age of 16 on race day to run on your own.

Aged 12 - 15
We have lowered our minimum age so now those aged 12-15 can run too. In order to run you must have a waiver signed by a parent or guardian and have an adult run the race with you. You must also enter any wave from 11.00am onwards and the maximum distance you can enter is 10km. If there are any questions regarding this please feel free to send to info@mudmonstersrun.co.uk


Key / Kit Storage

There will be a supervised car key storage area available should you need to use it. If you would like to put a larger bag into storage there will be a small charge of £3 for this. The key/bag drop will be manned by one of the charities we work with so any money paid for bag storage will all go to that charity.


Please note that the event organisers cannot be held responsible for any losses and we recommend you do not bring valuables with you.

PLEASE NOTE: At our August 2021 event there will only be a Key Drop, which will be a £1 charge to the charity manning it.



Parking will be available at the site for £5 per car at the gate, cash only please. We will donate a percentage of this money to the charity who will be overseeing the car park for us on the day.



We will have a brilliant photography team onsite from Epic Action Imagery here on the day so make you’re wearing a nice big cheesy grin. All our photos will be available for free on the web after the race so make sure you keep your race number visible then the photographers can tag you in making the pictures easier for you to find.

Race Numbers

Normally you will collect your race number headbands from registration on race day.  But due to COVID-19 we will be posting all race numbers and items you would normally collect at registration prior to the event.  Please ensure you bring these with you otherwise you will not be allowed to race on the day.


Food and Drink

Hot and cold food and a range of drinks will be available on the day.


Refunds – Cancellation Policy

As with most sporting events we state in our terms and conditions that we are unable to offer refunds or move you to one of our other events after you have booked and paid for your place. You can however make a substitution via your account up until 4 weeks before the run if you can find someone willing to take your place, please note there is an administration fee involved in this process and you will need to sort the money for the price of the ticket out between yourselves. We do work with a company called BEticketing (previously Circle Ticketing), where you can add insurance to your booking which will cover you in the event of illness, injury etc.


You can view our refund policy here



Our events will no longer be chip timed so there will be no results after the event. You will however still be emailed after the event with the link to the photos and other important information you need to know.


Health and Safety

Health and safety forms must be read, signed and returned to us or you will not be allowed to start the race.


Showers / Washing Facilities

We will have a cold water shower available on the day so you can wash the worst of the mud off, we also have male and female changing rooms so you can get totally changed after the race. In the winter the changing rooms are heated.

Please note, due to COVID-19 there will not be any showers or changing rooms at our August 2021 event.


There will be toilets on site for runners and spectators.



We encourage spectators to come along on the day to watch all the muddy fun and cheer all the runners on, unlike some mud runs we do not charge for spectators.  There will be designated viewing areas that spectators must remain in, all dogs MUST be kept on leads at all times and we ask you to keep an extra close eye on little ones.  Spectators are expected to pre-register for our August 2021 to help us control numbers and track who attends the event, link to sign up coming soon!


PLEASE NOTE: Spectators attending at our August 2021 event MUST pre-register to be allowed on-site. Registration form can be found here.

Start Times

Competitors will start in groups at timed intervals. You can choose your start time when you go through the booking process.


Team Discount

When you enter as a team you will get 10% off per person off your entry fee, to get the discount you will need to have the minimum number of runners in your team. This 10% will be refunded to the card you used to make payment as soon as your team reaches the minimum number on the system. Please allow 3-5 working days for this payment to appear in your account.


How to set up a Team

The person setting up the team will become the Team Captain.

  • Select the team distance that you would like to enter and click the 'Sign up a team now' button.

  • Enter your team name

  • Enter the number of places you would like to book, including your's

  • Click sign up now

  • Enter your details

  • At the end of the form you have the option to finish and pay for your space or add the details of another team member and pay for them (you and any extra team members will take up the spaces of the team size you selected earlier)

  • Once you have paid your confirmation email will be sent to you which will include your team details such as Team name and Password (if you chose to make it private) make sure you pass this information onto other team members so they can join your team.


How do Team Members Join my Team
  • The Team Captain will need to share the Team Name, Team Password (if applicable), Distance and Wave Time 

  • Share the website link for our booking page and let them know they will need to select the same event as yourself i.e 10km Team

  • They will need to select the 'Join Team' button

  • They then need to enter the team name and password (if required)

  • Enter all their details into the form

  • At the end of the form they will have the option to finish and pay for themselves or add the details of another team member and pay for them as well

  • Once payment has been made the confirmation email will be sent


What to wear

We HIGHLY recommend you wear trail, cross country or fell running shoes which have grippy soles, these give you so much more traction on the course and greatly reduces the risk of you slipping over and injuring yourself. Moulded football boots have also been recommended in the past and are fine for the muddy areas but please be extra careful in these boots on obstacles as they will provide little to no grip when climbing etc. Normal trainers are not ideal and can be dangerous due to how slippery the course can get, you will probably get round but when they get muddy they just slip and slide which is both frustrating and can lead to accidents. Shoes that might be dangerous will not be allowed, there will be NO spikes allowed on the day our officials will be checking footwear on the day and if they are deemed to be dangerous you will not be allowed to run. 


Trail shoes can normally be purchased on the day in the event village from Muddy Kit, an independent retailer, who stocks a wide range of shoes and other items to suit all budgets.

We recommend that you wear lightweight clothes that will dry quickly, even if it’s cold as heavy or thick clothing will retain the water and not only weigh you down but also make you colder.  Long sleeve and bottoms might help protect you from scratches.  It’s also a good idea to bring a change of clothes with you so you can relax and enjoy yourself in some clean clothes after you’ve run.


Can I run for charity?

We support a number of charities which can all be viewed here. We would love it if you also chose to support one of these charities as well but if you decide to run for a different charity we will be equally as pleased. 


What if the run is sold out?

If a run is showing as sold out before race day then we will no longer be able to add anyone else beforehand, this means we have reached our capacity. Our races are very popular and have previously sold out so we would recommend if you are running with friends or as a team that you get everyone to register as soon as possible to avoid people not being able to run. We do allow on the day entries, we are only able to accept cash for this. For any further information on this please email info@mudmonstersrun.co.uk


Please note that we will not be allowing on the day sign up's at our August 2021 event.

My pre race email has not arrived

Pre race emails are sent out about 7-10 days before each event.

For our August 2021 event the pre race email will confirm any COVID-19 precautions being put into place.

Registration packs will be posted out to runners signed up before Saturday 07 August 2021, all other runners will need to collect their registration packs at the check-in tent on site on the day.








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