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Runners participating in The Big Half as they cross Tower Bridge

The Big Half 2025

The Big Half is a vibrant, inclusive half marathon with a fun, festival atmosphere and you could be taking part with #TeamRetinaUK!

A panoramic view of the Old and New Towns of Edinburgh, Scotland, as seen from Calton Hill

Edinburgh 10K 2025

The route starts and finishes just outside Edinburgh at Musselburgh Racecourse, with the course taking you along the magnificent Golf Coast before finishing in Scotland's oldest racecourse. Join #TeamRetinaUK today!

Edinburgh Castle, a world-famous icon and historic fortress that dominates the skyline of Scotland's capital city.

Edinburgh Half Marathon 2025

Fast & flat, the course is ideal if it’s your first half marathon or you are looking for a PB. The Edinburgh Half Marathon has sold out every year since 2012 and is one of the largest half marathons in the UK and you could be there in 2025!

A view of the Edinburgh skyline, dominated by the historic Edinburgh Castle.

Edinburgh Marathon 2025

Held annually since 1982, the race begins in the city centre, before moving out of Edinburgh into East Lothian and finishes at Musselburgh in East Lothian. Are you ready to 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 2025

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!

A panoramic view of the Deansgate area in Manchester, England. The red brick building in the foreground is home to The Knott pub

Great Manchester Run Half Marathon 2026

With live music and thousands of spectators, this hugely popular race sells out fast but you could be there as part of #TeamRetinaUK in 2025. In true Mancunian style, it’s a party from start to finish, with a high-energy soundtrack along the route!

Albert Square in Manchester, UK, during the Manchester Christmas Markets

Great Manchester Run 10K 2026

Join #TeamRetinaUK in the centre of Manchester for a hugely popular race, back for another year in 2026. With a flat course and thousands of runners taking to the streets, it's set to be another fantastic event.