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Rasselbock Backyard Ultra Run

With no fixed time or distance, take part in this exciting race where you run a 4.161-mile loop every hour until you can’t run anymore. Intrigued? Click to find out more...

  • Booking essential

This event has no fixed length in time or distance, you just have to run the same 4.161-mile loop every hour and you run until you can’t run anymore.

The winner is found when they are the last runner standing. The event may last 10 hours or it may last 80 hours, you just never know what will happen in a Backyard Ultra.

• 2023 saw a new GB female record set with us. (35 Yards)

• 2024 had three ladies smash this record. (41 Yards)

• The most runners to reach 24 yards in any UK Backyard Ultra (34)

• 66% of our runners in 2024 had never run a backyard before.

• The friendliest family of runners, crew, and supporters you could ever ask for at an event.

Find out more on their website.

Times

Prices

Event ticket prices

Ticket typeTicket category
All £105.00

The basics

Booking details

Call N/A

Meeting point

Please meet at the aid station/start line. This will be shown on the map when you register.

Upcoming events

Event

Material Power: Rewoven 

Material Power continues in 2025, displaying 16 contemporary textile artworks amongst the internationally renowned textile collection.

Event summary

on
12 May to 31 Oct 2025
at
11:00 to 15:30
+ 172 other dates or times
Event

Walk With Us: Wider Estate Walks 

Discover Hardwick’s longer walking routes on a free guided group walk around the estate. With 7 different walks to choose from, sign up to one or challenge yourself to complete them all!

Event summary

on
13 May to 3 Jul 2025
at
10:30 to 12:30
+ 14 other dates or times
Event

Chesterfield Walking Festival: Wider Estate Walk 

Join your neighbours and celebrate walking in the Chesterfield area on this wider estate group walk!

Event summary

on
15 May 2025
at
10:30 to 14:00
Event

Guided by Nature: Veteran Tree Walk 

Tour Hardwick’s veteran tree collection to understand how they provide protected habitats for rare fungi, bats, lichens and so much more!

Event summary

on
18 May to 24 Nov 2025
at
10:00 to 13:00
+ 3 other dates or times