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A Fantastic Winter Trail Race in the Heart of Kielder Forest

Latest Update: Regretfully we will not be organising this event anymore. Forestry England have increased their charges significantly, making this event unsustainable to organise. We apologise for any disappointment.

The Kielder 10 mile trail run is open to all abilities of runners. Whether you are a seasoned veteran or new to trail running this varied course offers something for everyone. Incorporating a great blend of terrain. You will be tackling some of the amazing trails that Kielder Forest has to offer, from the secluded Archer Cleugh Burn to the more popular Lakeside Way multi user trail.

New for 2023: Due to the extensive storm damage from last winter there are still several trails in need of repair at Kielder. This gave the opportunity to plan for some exciting improvements to the event. For 2023 we have made some modifications to the previous route & feel this will be a more enjoyable course overall.

This is still the same figure of eight format, with the course returning through the castle grounds after the initial loop. The main difference being the second section which does not involve the long ascent up through the forest to Castle Hill.

See below for full course details.

Date: Saturday 7th January, 2023     Distance 10 Miles/16km         Start Time: 10:30          Time Limits:4hrs


Venue: The event is to be based at Kielder Castle Visitor Centre, Kielder, Northumberland, NE48 1ER. This is ideal for families & supporters.

Registration:  0830 - 1000. Event numbers will be issued at registration. Briefing notes will be available approx. five days prior to the event. No information will be posted out.


Entry Fee: £27 & £29 (Plus online entry fee) Entry discount of £3 if entering two events, £6 for three events)       


Parking: Event parking is at Kielder Castle Visitor Centre car park (pay & display) which is just a few minutes’ walk to the castle.

Campervans Overnight Parking: This is permitted at Kielder Castle car park (£10 charge after 5pm)

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What's Included in Your Entry:

  • All event organisation

  • Experienced safety team cover during the race, including qualified & experienced personnel at various locations

  • Qualified medical support

  • A stunning event venue

  • Fully marked routes

  • Online Registration, electronic chip timing

  • Unique finishers medal,  customised race number

  • Refreshments at finish, hydration station

For refunds, deferrals and cancellation policies please consult our T&Cs page

Kielder Winter 10 2018 Race Video

Kielder Winter 10 2018 Race Video

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Race Feedback

Both races on Saturday were great, well organised and super friendly marshals - thanks Lizzie Mahon

Thanks for a brilliant event today . Really enjoyed it . Thanks to all marshals and helpers too Lindsay


Ruth Stokes My first winter trail with my daughter (Christmas present from her). We may have come last but the organisation and marshals were great. Hope we can do this again as it was a brutal but stunning race x

I just wanted to say what a great race the Kielder 10M was. Well organised and a great route  Andrew


“Thank you for holding the Kielder 10miler this morning. Really enjoyed it even though the stunning course was brutal. Hope to be back next year"  Gillian Allen

To all involved in this weekend’s events...Thanks for a great day out! Challenging but enjoyable courses, really well marked on great trails. Superb marshals and thanks to all for waiting for me to finish. I was last finisher in both 10miles and 10km Thanks again Helen

Course: For 2023 we have a great new route planned. Starting and finishing at Kielder castle, this is still the same figure of eight format, with the course returning through the castle grounds after the initial loop.


The initial loop is slightly longer than previous editions. Starting in front of Kielder Castle & heading out along the Forest Drive, climbing steadily on forest tracks below Ravenshill Moor. This is the high point of the whole course, offering superb views across the whole valley & Deadwater Fell. A great descent leads into the secluded Archer Cleugh area, then from here return back to Kielder Castle (10k).


Cross through the finish area in the castle grounds & head out onto the second section of the course. This follows through Viaduct Wood alongside the river North Tyne, leading onto a loop which initially crosses underneath then across the historical Kielder Viaduct. Enjoy the spectacular views across Bakethin Nature reserve as you cross the viaduct (10km point) & follow the course of the old railway line. Join onto the Lakeside way multi-user trail .

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Join onto the Lakeside way multi-user trail, returning back to Kielder Castle to a well deserved finish.

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2023 Course Map


Kielder Castle

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Terrain: The course incorporates a great blend of forest roads, singletrack, a few short stretches of tarmac &  a section of the Lakesideway multi user trail.


Time Limit: 4hrs.

Ascent: 263m     Descent: 243m


The course will be fully marked so all you need to do is follow the route & enjoy the scenery. This is a great event to bring along family & friends for spectating. With the route returning back through the finish area at the half way point there's plenty of opportunity to offer encouragement.

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Required Kit: We've experienced some fantastic winter conditions at Kielder at previous events. The weather can change quickly or vary, with conditions in the valley very different from high up in the forest.To ensure you're prepared for the conditions that can be encountered at this time of year, all participants must dress appropriately for the conditions with suitable clothing & footwear.

Course Records: Marcus Daegrosa 58:31
Hannah Jarvis 1:07:55
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