The Longbridge 100 Backyard Ultra invites runners from all walks of life to experience one of the most unique endurance challenges on the global race calendar. This last-man-standing event, held both during winter and summer, pushes participants to their mental and physical limits in a setting that is as picturesque as it is challenging. The Summer 2026 edition offers 50 general entry spots with an additional ballot for those who have previously tackled Backyard Ultras or multi-day races. The race starts at 6 PM on Friday evening, giving runners the opportunity to reconnoiter the course during daylight hours if they arrive early enough. The event takes place in the serene landscape of Longbridge Barns, where participants will run a loop that is precisely 4.2 miles long (6.78 km) through single paths and farm access roads with varying terrain conditions. The route features natural chalky flint and gravel tracks, making trail shoes highly recommended for optimal grip. The rules are straightforward yet demanding: runners must start each lap exactly on the hour when a bell rings. If you fail to be inside the starting corral at this moment, your race ends there. Each loop is 4 miles long (minimum), with no artificial aids or personal assistance allowed once the run begins—except for brief moments between loops and in designated areas near the start line. Support comes from fellow runners and a dedicated team of volunteers who will cheer you on throughout the night and into the following days, should your endurance carry you that far. The race continues until just one runner remains standing to complete their final lap alone. Participants receive access to fully covered barns with amenities for both runners and support crews, including hot and cold water at an aid station stocked with bananas and sweets. A cafe adjacent to the starting corral offers additional sustenance during daylight hours. Dedicated first-aiders are on-site throughout the event, ensuring safety is a top priority. The Longbridge 100 Backyard Ultra promises more than just physical exertion; it’s about community spirit, perseverance, and creating unforgettable memories in a beautiful setting. Whether you’re an experienced ultrarunner or new to this format, The Longbridge offers a unique blend of challenge and camaraderie that is hard to find elsewhere. Registration includes a bespoke memento for all finishers and runners who complete the event receive a DNF token as well. For those crossing the line last but standing, there’s an exclusive silver-plated coin and handmade wool beanie awaiting them—a testament to their incredible feat of endurance. With limited spots available, securing your entry early is essential if you wish to take part in this extraordinary race that celebrates both individual achievement and collective support.
Races Offered
The LONGBRIDGE 100 Backyard Ultra - Summer 2027 (Bronze Ticket)
These values represent the 3-year monthly averages for January in Alfriston.
thermostatTemperature
3.4° / 7.9°
wb_sunnyFeels like
-2.2° / 2.7°
light_mode
Avg sunshine hours
4h 29m
water_drop
Avg rainfall
3.2 mm
ac_unit
Avg snowfall
—
air
Avg wind speed
21.4 km/h (Moderate breeze)
opacity
Sweat loss rate
Low
terrain
Course conditions
Firm and slightly soft
sunny
Max UV Index
Low (1.4)
humidity_mid
Humidity
83.1%
wb_twilight
Sunrise
08:52
nightlight
Sunset
17:24
About Alfriston
Learn more about the host city, Alfriston.
Alfriston is a village and civil parish in the Wealden District of East Sussex. The village lies in the valley of the River Cuckmere, about four miles (6 km) north-east of Seaford and south of the main A27 trunk road. The parish had a population of 829 at the 2011 census.