London Backyard Ultra

London Backyard Ultra is an endurance running event held at Frylands Wood Scout Outdoor Centre in Croydon, London. The event features a 4-mile (about 6.4 km) lap every hour, continuing until only one runner remains. The wooded venue offers a woodland course with a supportive, community atmosphere typical of Backyard Ultra events.

The London edition is pitched as London’s #1 running event, with tickets sold via the official site. The location is Frylands Wood, Featherbed Lane, Croydon, CR0 9AA, United Kingdom. The date is Saturday 30 August 2025.

The format emphasizes pace and consistency rather than speed, inviting participants to “find your true limit.”. Visit the organization's website for the most recent information.