Clumber Dirty Dozen
Hardwick Village, United Kingdom • 26 Sep 2026
Clumber Dirty Dozen
The Clumber Dirty Dozen is a 12 mile trail race introduced for 2026 and held within National Trust Clumber Park in the UK. The entire route stays inside the park, running mostly on trail and compact paths, and does not leave the park boundary.
The event is organised by Worksop Harriers Athletic Club and is limited to a maximum of 500 entries. Runners must be 17 or older on the event date. A three hour cut off applies to the race.
The course is fully marshalled and includes water stations. Finishers receive a medal, water and a banana. Trophies are awarded to the first, second and third placed male and female finishers. The race village will include stalls and there will be spot prizes.
Parking and entry to the park are included for the runner and accompanying family members. Entry fees are listed in two tiers: £31 for the first 100 entries and £35 thereafter, with a £2 discount for UKA affiliated competitors.
Entry places are limited and entries open and close in advance of the event date. View the event terms and the cancellation and refund policy for full entry conditions. Visit the organization's website for the most recent information.