Kielder Marathon

05 Oct 2025 (Sun)

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11km, 21.10km, 10km, 42.20km

Kielder Marathon

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Join Kielder Marathon

Britain’s ‘most beautiful’ marathon is back! The course which encircles the shore line of Kielder Water will attract thousands of runners and spectator.

IT’S BACK…Britain’s Most Beautiful Marathon returns.TRANQUIL, PEACEFUL, INVIGORATING, INSPIRING, CHALLENGING, PICTURESQUE, MEMORABLE, REWARDING…but just remember…it’s no bus ride!! The Active Northumberland Kielder Marathon route follows an almost entirely off-road course around northern Europe’s largest man-made lake, Kielder Water, in Northumberland. Britain’s Most Beautiful Marathon is the finale to a weekend of events, starting with the Kielder 10K & Kielder Run Bike Run followed by the Kielder Half Marathon and Junior races. It all adds up to an electric atmosphere and a fabulous weekend in this beautiful part of the country.Why not make a short break of it and bring your friends and family along? There is plenty to do in and around Kielder Water and the wider Northumberland countryside! Use the accommodation link to look for places to stay.All events were a SELL 


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Kielder Marathon

local_activity Deals & discounts

verified_user Refundable Booking option

credit_card Secure payments

The race information has been found on the official website of the event or through publicly available sources. Always refer to the official website the latest race information. Please let us know if any data is wrong or missing, by emailing us.