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.
Races
Marathon
Half Marathon
10km
Race Date:
05 October, 2025
The Kielder Marathon, scheduled for October 5, 2025, takes runners on a 26.2-mile journey around Kielder Water, Europe’s largest man-made lake. Known as Britain’s Most Beautiful Marathon, this event, organized by Events of the North, provides a challenging yet scenic off-road experience.
Weather based on historical averages. Route data provided by Strava, based on last year's race.
FAQs
What is the Kielder Marathon?
How long is the Kielder Marathon?
Where does the Kielder Marathon take place?
What is the elevation gain of the Kielder Marathon?
How can I prepare for the Kielder Marathon?
How do I choose the right training plan for the Kielder Marathon?
The Kielder Marathon, scheduled for October 5, 2025, takes runners on a 26.2-mile journey around Kielder Water, Europe’s largest man-made lake. Known as Britain’s Most Beautiful Marathon, this event, organized by Events of the North, provides a challenging yet scenic off-road experience.
The Kielder Marathon is 42km long.
The Kielder Marathon takes place in Kielder, Northumberland, UK.
Runna classifies the Kielder Marathon elevation profile as Rolling.
The best way to train for the next race is to use a personalised 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 personalised 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!
What is the Kielder Marathon?
The Kielder Marathon, scheduled for October 5, 2025, takes runners on a 26.2-mile journey around Kielder Water, Europe’s largest man-made lake. Known as Britain’s Most Beautiful Marathon, this event, organized by Events of the North, provides a challenging yet scenic off-road experience.
How long is the Kielder Marathon?
The Kielder Marathon is 42km long.
Where does the Kielder Marathon take place?
The Kielder Marathon takes place in Kielder, Northumberland, UK.
What is the elevation gain of the Kielder Marathon?
Runna classifies the Kielder Marathon elevation profile as Rolling.
How can I prepare for the Kielder Marathon?
The best way to train for the next race is to use a personalised 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!
How do I choose the right training plan for the Kielder Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised 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!
More
Sport:
Running
Tags:
Nature
Park
