The Dirty Dozen

4 miles per hour. Simple.

4.2 MPH

Run a 4.2 miles per hour, every hour for as long as you can up to 12 hours.

The 12th lap is a race.

This event will start at 9am on the 7th of October 2023.


Entrant race pack

Public information

Live race tracking


Out of stock


Every hour you will need to complete a 4.2 mile lap. If you get back from the lap in 40 minutes, you will have 20 minutes rest before starting the next lap. Laps are not timed, you just need to get back from each lap within the hour.

Everyone who completes 1 or more lap gets a medal with a star on for each lap you completed. Medals are shown here and are for illustration purposes only, the final medal may differ from the one shown.

If you manage to complete 6 lap (6 hours) you will have done 25 miles and have 6 stars... Question is, how many you going for? Doing all 12 laps will mean you've done 50 miles!

The winner is decided by the runner who completes the final lap in the quickest time.

Each laps starts from the race HQ, where there will be water aplenty. Your cars will also be accessible each lap, so you can bring along anything you need to get you through as many laps as possible. Marshals will be ready to help you navigate the course successfully as well as get you ready for the next lap! Check out our blog post on this event - Dirty Dozen : Research.

The participation rules will be explained in more detail on the day.

Entry is £35.

As always, all profits go to local charities.

* Numbers are going to be kept low for this event to avoid conjestion in the woods!

3 laps completed:

3 laps

12 laps completed:

12 laps

The final medal will differ from the one shown here.

Postal Entries & Concessions

For information on post entries please view this page. We offer special concession rates for students and senior citizens.

If you want to raise money for our charities or your own, you can download a sponsor form here.

Join the community

Registred charity no. 1182417