Trails & Tarmac 12 Hour Back Yard Ultra

About Trails & Tarmac 12 Hour Back Yard Ultra

Trails & Tarmac 12 Hour Back Yard Ultra The Trails & Tarmac 12 Hour Back Yard Ultra on 15 November 2025 is a 12 Hour endurance race in the Black Mountains, Wales. The first 11 laps follow a standard backyard format, where competitors must consecutively run a 4.2 mile course in less than one hour, every hour. The 12th and final 'yard' is a race to the finish. Based just outside Crickhowell, the course is 50/50 Trail and Tarmac, with only one gradual climb and a short steep section, the rest is relatively flat terrain, which means fast. Anyone completing a yard receives a medal, and there is a special medal for anyone who reaches 32 miles ie ULTRA. Please refer to the event website for further details including associated rules. Off Road/Trail

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