Trails & Tarmac 12 Hour Back Yard Ultra

Trails & Tarmac 12 Hour Back Yard Ultra

Saturday, 15 November 2025

Crickhowell, Powys, Wales, UK

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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.

Organiser

Limitless Trails

Distances/Events

1 x 4.2 mile lap per hour - 12 Hour limit

Location map

The event starts and finishes near Crickhowell. Refer to the event website for corral and course map.

Please note: the map location may be approximate. Refer to the event website for start lines and course maps.

Disclaimer

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This listing was last manually checked on 26 June 2025.

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