Secret Santa Tinsel Half Marathon

Black Mountains, Wales, United Kingdom • 5 Dec 2026

Secret Santa Series

The Secret Santa Series is a trail running event held in the Black Mountains of Wales. Managed by a local team of runners, the event emphasizes a "leave-no-trace" philosophy to protect the natural environment. This commitment includes maintaining a plastic cup-free and tape-free environment throughout the course.

The event organizers utilize their extensive knowledge of the local terrain to provide a safe experience on the trails. Participants can choose from three distinct distances:

  • 13M (Half Marathon distance)
  • 10M
  • 14K

The race is part of a broader calendar of mountain and trail events characterized by professional support and a community-focused atmosphere. The routes are designed to showcase the landscape of the Welsh mountains while ensuring there are no hidden surprises due to the team's thorough familiarity with the trails. Visit the organization's website for the most recent information.

Race information

13 mi
13m
10 mi
10m
14 km
14k
Visit the organization's website for the most recent information.
Trail runs nearby

A 30 mile circular ultra on 4 April 2026 around Monmouth, covering parts of the Three Castles Walk and Offa's Dyke Path with 4,258 ft of elevation and two fully stocked checkpoints.

Tackle the Kymin Dash, a 7 mile road and trail race from Monmouth that climbs to the Round House for panoramic views before descending through fields and bluebell filled woodland. Enjoy a lively finish at Monmouth School Sports Club with Ki..

Wild Horse South Wales 200 is a 200-mile trail ultramarathon through South Wales. The route links historic paths like Offa's Dyke and the Beacons Way, finishing at Worm's Head on the coast. This point-to-point adventure offers a multi-day c..

Experience a scenic 40 mile ultra marathon along National Cycle Route 8 from Glasbury to Merthyr Tydfil. This quadrennial event offers a well supported route through the Heart of Wales with unique finishers medals.