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Event details
  • . 105 days left to book
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Rat Race Dirty weekend is the biggest and best obstacle racing weekend in world. We’re bringing monster obstacles, our phenomenal afterparty, huge event village and awesome campsite back to Burghley House. Take on 40, 20 or 13 miles at the world’s largest assault course.
C-19 Plan
Rat Race has confirmed that this event will be going ahead as planned on Friday 7th May 2021 in accordance with the COVID-19 safety measures. Learn more

How to enter the Rat Race Dirty Weekend

  1. Young Mucker - 3km

    Run 3km
    Book Now
  2. Young Mucker - 6km

    Run 6km
    Book Now
  3. Half Mucker

    Run 13mi
    Book Now
  4. Full Mucker

    Run 20mi
    Book Now
  5. Dirty Double

    Run 40mi
    Book Now

Rat Race Dirty Weekend routes

Over 20 miles participants will hit over 200 individual obstacles. Run, jump, slide, climb, and crawl through this epic course.

Event Details

What’s Included
  • Finishers medal
  • Food and water stations
  • Live MC
  • On course photography
  • Fully waymarked route
  • After party ticket
  • Collectable rat rag
  • £10 donation to Children with Cancer UK
Raceday Logistics


07:45 First Wave

13:00 Last Wave

14:30 Young Mucker start

Please arrive at least 45 minutes prior to your wave's start time.

Waves begin for the Full Mucker and Half Mucker every 15 minutes from 07:45 onwards. Double Mucker participants must set off in Wave 1 and return from their 2nd lap of the course before 13:00.

Kit List
  • Trail running shoes
  • Re-useable water bottle

Spectators are definitely welcome at Dirty Weekend 2021. There is a charge for camping, car park and after party, but no charge to enter the event area and support the runners through the day.

Frequently Asked Questions

Can I bring my dog to Dirty Weekend?
Dogs are allowed in the event village, but not in the campsite area
Is camping included in the entry fee for Dirty Weekend?
No, if you would like to camp, you must purchase a camping ticket.
How do I train for Dirty Weekend?
Rat Race will be releasing a training plan nearer the time, however the most important thing to remember is that you should be getting consistent miles under your belt.

Meet the organiser

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From city to summit and everywhere in between, Rat Race offers the largest selection of adventure challenges in Britain.



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Tickets £29–£350

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© Let's Do This 2021