Summer GMU 2026

About the Event

Bristol Loop Ultra: A Challenging Journey Through Urban and Rural Landscapes
Embark on an epic adventure with the Bristol Loop Ultra, a grueling yet rewarding 45-mile course that winds through both urban areas and picturesque countryside surrounding the vibrant City of Bristol. This event offers runners the unique opportunity to experience the diverse terrain and rich history of one of England's most dynamic cities.
The race begins in the heart of Bristol, where participants will start their journey by navigating winding streets filled with historic architecture and modern cityscapes. As you make your way out of town, you'll encounter a mix of flat stretches along riverside paths and rolling hills that challenge even seasoned runners. The route is meticulously designed to showcase both the industrial heritage and natural beauty of Bristol's surroundings.
Throughout the race, participants will pass through quaint villages, cross scenic bridges, and traverse lush green spaces as they loop around key landmarks such as Clifton Suspension Bridge and the Avon Gorge. Each mile offers a different perspective on the city’s unique character, from bustling market squares to serene parks where wildlife abounds.
The event is not just about pushing physical limits; it's also an immersive cultural experience that connects runners with local communities along the way. Spectators cheer racers on at various points throughout the course, creating a supportive and encouraging atmosphere for all participants as they tackle this demanding distance.
Whether you're aiming to set personal bests or simply enjoy the scenic beauty of Bristol’s diverse landscape, the Bristol Loop Ultra promises an unforgettable day out for endurance runners seeking both challenge and reward.

Races Offered

Defer to Summer 2027

Aug 22, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

08:00

sell

£15.00

GMU30

Aug 22, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

08:00

sell

£80.00

GMU45

Aug 22, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

08:00

sell

£95.00

Me + 1 GMU45

Aug 22, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

08:00

sell

£175.00

Transfer to another runner

Aug 22, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

08:00

sell

£15.00

Transport from Ashton to White Horse

Aug 22, 2026

straighten

Distance — 0K

terrain

Type — Running

timer

08:00

sell

£20.00

Weather History

These values represent the 3-year monthly averages for August in Long Ashton.

thermostat Temperature

13.5° / 20.8°

wb_sunny Feels like

11.6° / 18.5°

light_mode Avg sunshine hours

9h 56m

water_drop Avg rainfall

2.2 mm

ac_unit Avg snowfall

—

air Avg wind speed

15.0 km/h (Gentle breeze)

opacity Sweat loss rate

Moderate

terrain Course conditions

Firm and slightly soft

sunny Max UV Index

Moderate (4.9)

humidity_mid Humidity

76.0%

wb_twilight Sunrise

05:57

nightlight Sunset

20:29

About Long Ashton

Learn more about the host city, Long Ashton.

Long Ashton is a dormitory town 5 km south west of Bristol in Somerset, England. It is known for its bio science research centre Fenswood Farm, known by the locals as The Farm.