Trails & Tarmac Backyard Ultra

Crickhowell, United Kingdom • 15 Nov 2025

The Trails & Tarmac 12hr Backyard Ultra is a challenging endurance running event held near Crickhowell in Powys, UK, set in the scenic Black Mountains. The race features a 4.2-mile loop combining equal parts trail and tarmac, with mostly flat terrain, one gradual climb, and a short steep section, designed for fast running. Participants must complete each loop within an hour, with a total race cap of 12 hours.

The final 12th loop is a sprint to determine the winner. Runners receive medals for each completed loop, with a special ultra medal for those reaching 32 miles. The event offers food, hydration, medical support, and facilities including showers and toilets. Visit the organization's website for the most recent information.

Race information

4 mi
4.2 Miles
Visit the organization's website for the most recent information.
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