Brecon to Cardiff Ultra

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.

Dark Skies Series brings winter night trail running to Somerset with three atmospheric events offering 5 km and 10 km routes. Enter individual races or the full series and collect a bespoke wooden finisher's medal to mark the achievement.

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.