Clumber Dirty Dozen
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About the race
Worksop Harriers Athletic Club presents the Clumber Dirty Dozen, a new trail race introduced for 2026 at National Trust Clumber Park. The event is a 12 mile run held entirely within the park, mostly on trail and compact paths, and does not leave the park boundary.
The route is fully marshalled and includes water stations. There is a three hour cut off for the course. Free parking and free park entry are included for the runner and accompanying family members. All finishers receive a medal, water and a banana.
The race village will include stalls and there will be spot prizes. Trophies are awarded to first, second and third male and to first, second and third female finishers. The event limits entries to a maximum of 500 and requires competitors to be 17 or older on the event date. Dogs and children under 17 are not permitted due to licence conditions.
Entries open on 6 March 2026 and close on 23 September 2026. Entry fees are £31 for the first 100 entries and then £35, with a £2 discount for UKA affiliated athletes. Entry requires a SiEntries account. The confirmed route is available on the event Facebook page. Visit the organization's website for the most recent information.
