The Bristol Backyard Ultra is a last-runner-standing endurance race. You’ll run a 4.167-mile loop every hour, on the hour. Fall behind the clock, and you’re out. Keep going, and going, and going — until you’re the only one left.
Whether you're chasing victory or seeing how far your mind and body can take you, this race will test your limits in the most exhilarating way possible.
Venue TBC — but we’re scouting several brilliant spots within 30 minutes of Bristol.
We’re reaching out to a mix of council-owned woodlands, private farmland, and everything in between to secure the perfect location.
Accessibility is a priority — all potential venues are reachable by public transport, and there will be space for runners to set up personal aid stations and rest zones near the start/finish area.
Expect a 4.167-mile loop made up of runnable trails: grassy sections, woodland paths, and gentle hills. The terrain will be scenic and varied — just enough to stay interesting lap after lap.
Yes! You’ll have a small space near the start/finish line to set up whatever you need between Yards — a tent, chair, snacks, or just a crate of bananas. It’s your personal reset zone.
Nope — the race continues until only one person completes a Yard. Whether that’s 12 hours or 48, we go until there’s a single runner left. Everyone else gets a DNF (with pride!).
Anywhere from a single loop to 100+ miles. Whether you're aiming for your longest ever run or the win, you’ll be cheered on every Yard.
This event is solo only — but come as a crew, support your mates, and enjoy the community vibe. We’ve got space for everyone.
Yes, basic amenities will be available near the loop start. We’ll also provide snacks and warm food later in the race.
We recommend trail shoes — the course will include grass, light trail and possibly a bit of gravel, depending on the venue.
Have questions or want to get involved? Drop us a message anytime.
Email: info@gravelandgritevents.com