Technical Partners
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Bristol’s
newest
ultra marathon
A brutal, beautiful backyard ultra at the historic grounds of Tockington Manor. 4.167 miles every hour, on the hour — until the field is gone and the warriors remain.
30
loops / hours
125mi
total distance
£500
winner prize
1
remains
Race starts in
23 May 2026 · 10:00 race start
Race day hub
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Countdown to the 10:00 start bell. At race start this becomes the live stream hub.
Stream, venue, rules and runner updates — all in one place for event day.
Race Day essentials
Know before you run.
07:30
Registration opens
Arrive early to check in, collect your race number, safety pins and goody bag before briefing.
130 runners
Media + atmosphere
Media tent, stage area, interviews and race filming throughout the day and night.
Self-supported
Bring your kit
Food and drinks can be purchased on site, but runners must bring their own water, equipment and power.
The event company
Endurance events with edge.
PWR Endure is a UK-based running events brand focused on backyard ultra formats, runner community and purpose-led challenges.
Clean event format
One loop, every hour, until the field is stripped back to whoever can keep moving.
Community first
A hard event, but a supportive one. Crew, runners and spectators all become part of the story.
Purpose behind it
Events raise awareness and support for Muscular Dystrophy UK while pushing runners to test themselves.
Nuffield Health
Recovery support for runners.
Nuffield Health is supporting the event with guest pass access for runners attending the Tockington Manor Altered Backyard Ultra Marathon.
BristolBristol NorthWeston-super-MareBridgendSwindonCwmbranTauntonGloucesterYeovil
PWR Endure partners
A proper event needs proper backing.
Technical, active, event, community and supporting partners helping bring the Backyard Ultra to life.
Sports & Active
Event Partners
Next ultra
Tockington Manor Backyard Ultra
30 loops, 125 miles total distance, a custom finisher experience and a shotgun finish concept to conclude the event.
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The loop
Every hour asks the same question.
- Start each loop on the hour.
- Finish the loop inside 60 minutes or you DNF.
- Recover, refuel, reset — then answer the bell again.
Strava
Join the running group.
All paces welcome. Training, progress, accountability and event energy in one place.
Open StravaSocials
Follow the build-up.
Behind-the-scenes, training ideas, event announcements, race week updates and sponsor opportunities.
Contact the team