Chiltern Hills Backyard Ultra 24

Chiltern Hills Backyard Ultra 24

Saturday, 19 September 2026

Bradenham, High Wycombe, UK

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The Chiltern Hills Backyard Ultra 24 on 19 September 2026 is a 24 Hour endurance event in Buckinghamshire.

A Backyard Ultra is a form of ultramarathon race where competitors must consecutively run a 6.71km / 4.17 mile course in less than one hour, every hour. When each lap is completed, the remaining time within the hour is used to recover and replenish for the next hour's race.

This event has a 24 Hour time limit - Complete all 24 laps and you have run over 100 miles. Anyone who makes the final lap is in for the final showdown.

The event is based at Manor Farm, Bradenham. See also the Bradenham Blast 10km Trail Run, held on the same day.

Distances/Events

1 x 4.17 miles lap per hour - Last one standing format for 24 Hours

Location map

The event is based at Manor Farm.

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 21 December 2025.

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