Celebrating its 15th anniversary in 2025, the Altra Kielder Marathon is the highlight of a weekend filled with various events, including a 10K, Gravel Duathlon, Half Marathon, and Junior races. Participants can enjoy a festive atmosphere amidst the natural beauty of Kielder Water and the surrounding Northumberland countryside. The marathon route is predominantly off-road, providing a unique challenge for runners seeking a scenic and invigorating experience. Families and friends are encouraged to join, with numerous activities and local attractions available throughout the weekend.
Race Date:
05 October, 2025
The Kielder Half Marathon, happening on October 5, 2025, features a 13.1-mile route around the scenic trails of Kielder Water. This race, organized by Events of the North, offers a great mix of beautiful views and off-road challenges.
Weather based on historical averages.
The Kielder Half Marathon, happening on October 5, 2025, features a 13.1-mile route around the scenic trails of Kielder Water. This race, organized by Events of the North, offers a great mix of beautiful views and off-road challenges.
The Kielder Half Marathon is 21km long.
The Kielder Half Marathon takes place in Kielder, Northumberland, UK.
Runna classifies the Kielder Half Marathon elevation profile as Rolling.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
The Kielder Half Marathon, happening on October 5, 2025, features a 13.1-mile route around the scenic trails of Kielder Water. This race, organized by Events of the North, offers a great mix of beautiful views and off-road challenges.
The Kielder Half Marathon is 21km long.
The Kielder Half Marathon takes place in Kielder, Northumberland, UK.
Runna classifies the Kielder Half Marathon elevation profile as Rolling.
The best way to train for the next race is to use a personalized training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalized training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
Running
Nature
Park