Nightmare before Xmas Trail ½ Marathon

Aberkenfig, United Kingdom • 19 Dec 2026

Event details

The Nightmare Before Xmas Trail ½ Marathon is scheduled for 19 December 2026 at the Bridgend Miniature Railway Centre in Aberkenfig, Tondu (Bridgend, CF32 9BZ). The event is organised by Mad Running Junkies. Entries open 25 December 2025 and close 18 December 2026. The minimum age is 17. Entry fees are listed as £30 for entry only and £60 for entry with a t-shirt. Entry is limited to 70 participants.

Course and facilities

The route is a trail half marathon that includes a portion of an 8-mile route followed by about five additional miles. The course uses mixed terrain with a steep hill, a road section with views, a downhill forestry trail that can be technical, and muddy and waterlogged sections. The course will be fully marked.

Facilities and provisions include car parking, toilet facilities, a bespoke medal, hot and cold drinks and snacks, mince pies, Christmas cake and Christmas crackers. A medical team and event volunteers will be present. There is a prize for the best and most imaginative Christmas fancy dress costume; participants must run in their costume. The organiser notes the field is small and the route has demanding sections. Visit the organization's website for the most recent information.

Race information

13 mi
Nightmare Before Xmas Trail ½ Marathon
Visit the organization's website for the most recent information.
Trail runs nearby

Tackle the rugged Celtic Trail in South Wales, running through Afan Forest and the Rhigos with steep climbs, river crossings and sweeping views toward the Brecon Beacons. Choose Ultra, Marathon or Half distances to test your trail legs.

UTMB Index

Run the A Nightmare Before Xmas Trail half marathon on 20 December for a festive, challenging trail with mixed terrain and a steep Hill of Doom finish. Enjoy seasonal treats, a finisher medal and a prize for best Christmas fancy dress.

Get into the festive spirit at Santa Run Wales in Dare Valley Country Park, Aberdare, a family friendly fun run with optional fancy dress, Christmas music and mince pies. Every finisher earns a festive medal and goody bag.

Discover the new Cardiff Trail 10k, a scenic 10 km trail run through Fforest fawr near Castell Coch. Expect muddy singletrack, sweeping views and a friendly atmosphere perfect for trail runners looking for a January adventure.