Altra Kielder 10K & Duathlon
Northumberland
04 Oct 2025
Organised by
Kielder 10K and Duathlon
The Altra Kielder Marathon Weekend in 2025 features both a 10K and a Duathlon, offering runners and athletes a chance to race through the breathtaking Kielder Forest. The 10K takes you along scenic trails around Kielder Water, while the Duathlon challenges you with a combination of cycling and running. Both events include chip timing, water stations, and a finisher’s medal. With stunning views and a welcoming atmosphere, it’s the perfect weekend for athletes of all abilities.
Event Details
The Altra Kielder Marathon Weekend in 2025 offers two thrilling events for athletes—the 10K and the Duathlon, set in the breathtaking Kielder Forest and surrounding areas. The 10K takes participants through scenic trails along Kielder Water, featuring a variety of terrains that showcase the natural beauty of the region, from woodland paths to waterside tracks. The Duathlon challenges athletes with a 25K bike ride followed by a 5K run, combining endurance and strategy. Both events are fully supported, with chip timing, multiple water stations along the routes, and a finisher’s medal. Whether you’re aiming for a personal best or simply soaking in the views, this weekend is designed to challenge and inspire athletes of all levels.
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