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A skyline view of Birmingham, England, featuring several notable landmarks.

Great Birmingham Run Half Marathon 2026

With a carnival atmosphere and the passion and spirit of the runners. this is a race like no other. Expect inspiring sights, iconic landmarks and incredible support all along the route. Join #TeamRetinaUK and experience it yourself!

The Clifton Suspension Bridge spanning the Avon Gorge and River Avon in Bristol, England.

Great Bristol Run 10K 2026

If stunning views, inspiring history and graffiti murals are your thing, then this is the race for you in 2026. With a flat course and thousands of runners taking to the streets, it's a fantastic event to be a part of.

Glasgow City Chambers building, which overlooks George Square in the centre of Glasgow, Scotland

Great Scottish Run 10K 2026

With a city centre start and finish, this race is a celebration of everything that makes Glasgow truly great - urban architecture, green spaces, history, music, strength, spirit and, of course, welcoming people! Sign up today and run for Retina UK.

The image displays an aerial view of the University of Glasgow's main building and surrounding city

Great Scottish Run Half Marathon 2026

With a city centre start and finish, Scotland’s friendliest city always delivers on the support front, with crowds of locals turning out each year to cheer and high-five from beginning to end. Join #TeamRetinaUK this winter!

Tough Mudder

Tough Mudder 2026

With various events to choose from in 2026, these hugely popular events are back for another year! Round up your friends, family members and colleagues and join #TeamRetinaUK for a fun day out!