Bristol Backyard Ultra
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BRISTOL BACKYARD ULTRA 2027
One loop. Every hour. Until only one runner remains.
The Bristol Backyard Ultra returns after an unforgettable inaugural year — bringing together runners from across the UK for a weekend of grit, determination, community, and pushing beyond what you thought was possible.
Set within the trails of Blaise Castle Estate, this is a true Backyard Ultra experience: runnable trails, an electric basecamp atmosphere, long nights, sunrise laps, and the simple challenge of making it back before the next bell.
Whether you’re chasing your first ultra, aiming for a new distance PB, or testing your limits deep into the second night, you’ll be welcomed into one of the most supportive communities in trail running.
HOW IT WORKS:
• One 4.167-mile (6.7km) loop
• A new lap starts every hour, on the hour
• Finish within the hour to continue
• Fail to complete a lap in time and your race is over
• Last runner standing wins
WHAT TO EXPECT:
• Fully marked trail course
• Incredible community atmosphere
• Inclusive, runner-first event experience
• Camping/basecamp setup
• Food, support, and overnight racing atmosphere
• Beautiful woodland trails and open parkland
• A proper test of physical and mental grit
This is not just a race about speed.
It’s about patience, resilience, determination, and continuing when things get difficult.
Whether you complete 4 loops or 40, every runner earns their place here.
Limited entries available.
One loop. Every hour. Until only one runner remains.
The Bristol Backyard Ultra returns after an unforgettable inaugural year — bringing together runners from across the UK for a weekend of grit, determination, community, and pushing beyond what you thought was possible.
Set within the trails of Blaise Castle Estate, this is a true Backyard Ultra experience: runnable trails, an electric basecamp atmosphere, long nights, sunrise laps, and the simple challenge of making it back before the next bell.
Whether you’re chasing your first ultra, aiming for a new distance PB, or testing your limits deep into the second night, you’ll be welcomed into one of the most supportive communities in trail running.
HOW IT WORKS:
• One 4.167-mile (6.7km) loop
• A new lap starts every hour, on the hour
• Finish within the hour to continue
• Fail to complete a lap in time and your race is over
• Last runner standing wins
WHAT TO EXPECT:
• Fully marked trail course
• Incredible community atmosphere
• Inclusive, runner-first event experience
• Camping/basecamp setup
• Food, support, and overnight racing atmosphere
• Beautiful woodland trails and open parkland
• A proper test of physical and mental grit
This is not just a race about speed.
It’s about patience, resilience, determination, and continuing when things get difficult.
Whether you complete 4 loops or 40, every runner earns their place here.
Limited entries available.
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Where is it happening?
Blaise Castle Estate, Bristol, United Kingdom
Event Location & Nearby Stays:
Know what’s Happening Next — before everyone else does.
Host or PublisherGravel and Grit Events
