The Backyard 12 with Swanage Bay Sauna

APR
4
2026
Test your endurance with this 12 hour Backyard Ultra format race featuring a 4.167 mile loop through the Purbecks. Run as an individual or in a team while enjoying the scenic Jurassic Coast and a lively event village.
Sat 4 Apr 2026
4.167 Mile Lap (backyard...

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The Backyard 12 with Swanage Bay Sauna

The Backyard 12 is an endurance event based on the Backyard Ultra format. Participants complete a 4.167 mile trail loop every hour, on the hour. The event takes place in the Purbecks, starting from a designated carrell in Days Park, Swanage.

The course features a trail route with a ascent up the ridgeway towards Old Harry’s Rocks, offering views of the Jurassic Coast. The challenge is designed for participants to complete up to 12 laps, totaling approximately 50 miles if all loops are finished. Runners must be at the starting line for each subsequent loop to remain in the event.

Participants have the option to enter as individuals or as part of a team:

  • Individual: Challenge to complete all 12 yards.
  • Team of 2: Up to 6 yards each, completed in continuous alternate order.
  • Team of 3: Up to 4 yards each, completed in continuous alternate order.

An event village is located at the venue, featuring music and various vendors. On-site services include sports massage and marshals stationed along the route. Food and drink options available at the village include coffee, pastries, ice cream, and locally sourced food with vegetarian and vegan selections. The event is hosted at Shore Place in Swanage, Dorset. Visit the organization's website for the most recent information.

4 mi
4.167 Mile Lap (backyard Ultra Format)
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