2023 Date: Saturday 1st April

 82k, 50k & 32k Distances


                       Entries to Open October/November.

       Further Details & Entry Links will be added nearer the time.

An ultra running event based in the vast expanse of Kielder Water & Forest Park, Northumberland...from lakeshore to heather moorland, beautiful trails & superb scenery.

The Kielder Ultra Trail is set in the vast expanse of Kielder Water & Forest Park. The Park spans 600 square kilometres & is home to the largest forest in England & the largest man-made lake in northern Europe. The area features mile upon mile of purpose-built trails including forest walks, woodland singletrack and heather clad moorland.


Incorporating a unique blend of some of the more remote areas of the forest & also the main attractions, this will be an ultra trail run like no other.....the perfect way to explore this amazing area.


With two ultra distances, plus a 32k/20mile option to choose from there is something for everyone. These will be fully marked so no navigation experience necessary.

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Date:   Saturday 2nd April  2022                  Distances:  82km, 50km & 32km route options                


Start Times:    82km - 0730     50k - 0900  32k - 1000


Venue:  Kielder Castle Visitor Centre, Kielder Water & Kielder Forest Park, Northumberland, NE48 1ER.


As Kielder Castle is currently undergoing refurbishment we may need to relocate the event start/finish area. There are a number of alternative options adjacent to the castle. Updates will be posted nearer the time.

Entry Fees: Special Early Bird Price:

82 Km:   £55 - £60                   50 Km:   £45 - £50            32Km:   £40 - £45


Please Note: This year there is an option to purchase an event tech t-shirt for an additional £6

Entries: Minimum entry age 18 years old.                                

Registration: This will be based from Kielder Castle. Numbers will be issued at registration.

82km  Registration will be on Friday between 1630-1830 & Saturday between 0615-0715.


50km & 32km Registration is either Friday (1630-1830) or Saturday 0730-0930

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What's Included in Your Entry:

  • All event organisation

  • Safety team cover during the race including qualified & experienced personnel at various checkpoints

  • Qualified medical support

  • A stunning event venue

  • Online Registration & Electronic Chip Timing

  • Unique finishers medal, customised race number

  • Route gpx downloads

  • Fully Marked Routes

  • Well Stocked hydration & feed stations on the course (TBC)

  • Drinks & Refreshments at finish

  • UTMB Points

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

Participant Feedback


"What an amazing event and definitely worth flying over from Australia. A big thankyou to the organisers Who I met and the rest of the team including the wonderful volunteers who welcomed us with big smiles and words of encouragement. Will definitely be recommending this event to friends in OZ ??"Mark Backhouse

 "A massive thank you to each organiser, marshall, photographer and runner. You all helped this girl complete her first ultra. So much support, so friendly, fantastic location. You all helped create an amazing experience. Thank you and well done " Jen Runner Bean


"Superb event again! Marshals and organisers the loveliest in the business! Even stopped and showed me an Osprey at the start of the 100km! Really love this event, definitely coming back! Thank you!" Jodie Smith


"Once again High Terrain put on a superb event in stunning scenery. The 100k felt like 2 different laps after the rain set in. A huge thank you to the staff/marshalls for your support and look forward to seeing you all at Ennerdale later this year" Dean Sartin


"What a friendly supportive atmosphere. I have never been to an event before where every single runner supports each other, even the guys and girls who won the 100k took the time to encourage and support me on my way around. They are amazing. The marshals, event staff and photographer were all amazing too, friendly and encouraging, and helped me complete my first ultra (as a non-trail runner). Thank you all" Lynsey Mackintosh


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Terrain: There are no real technical aspects to the course, this will be a truly fantastic ultra offering great variety in terms of scenery & terrain. The courses are approx. 99% off road (the longest road section is across Kielder Dam). Featuring a fantastic combination of woodland singletrack, forest trails, open moorland, sections of the Lakeside Way multi-user trail & the blue graded mtb route. There are also sections on forestry roads (some of which have a loose stone surface).

They are undulating/hilly circuits encompassing Kielder Water. The climbs & descents are generally long & gradual & not steep or technical. Suitable trail shoes are strongly recommended/essential.


Route Highlights: This is a superb route whether you are looking to complete your first ultra or an experienced runner. Starting and finishing at Kielder Castle, the 50k loop encircles the whole of Kielder Water. The route features sections along the tranquil Lewisburn Valley, Kielder Viaduct, Bakethin Reservoir nature reserve, Bellingburn Valley & sections of the Lakeside Way multi-user trail & the blue graded bike trail The route also climbs onto open moorland to offer stunning panoramic views over the whole of Kielder Water and across to the Scottish Border.


Kit Requirements

We've experienced some fantastic conditions at Kielder at the previous events, ranging from a covering of snow to warm sunshine (both in one day!).


Check Point Information

There will be a number of control checkpoints on the route. These CP’s  must be visited in the order specified. There will also be intermediate cut off times  at various locations.

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Course GPX Download

Each course GPX file is available to download:


Courses: The routes will be fully marked so no need for navigation. Navigational devices (GPS units, watches, smartphone, etc.) are permitted & a route GPX file is available to download. If you are unfamiliar with the area it is recommended that you use such a device to assist with navigation.


All courses are accurately measured & are the exact distance.

GPS Measurement: We try to ensure that we measure the courses as accurately as possible using a number of different recording devices & various recording settings. Please note that the actual distance and elevation gain can vary between +/- 5 % depending on the measurement method, i.e. make & model of watch/GPS unit, unit settings, tree cover, etc. 

Please note: Sections of the routes are on the blue MTB trail which the Forestry Commission have given permission to use for the duration of the race. However we do not advise you to run this at other times when mountain bikes will be using the trail.

(Please note the course GPX files have been plotted with OS mapping software. There may be a few slight variations when viewing these on various other mapping software).

Course Details:


  83k Ascent: 1713m


Descent:  1719m

 83k Time limit:  14hrs. There will also be intermediate cut off times  at various locations.


Kielder 50k Ultra Course

 Ascent: 894m


Descent: 895m

 83k Time limit:  9hrs. There will also be intermediate cut off times  at various locations.

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Kielder 32k Course

 Ascent: 640m


Descent: 642m

 32k Time limit:  8hrs. There will also be intermediate cut off times  at various locations.

Kielder 83k Course Overview: The 83k route is basically the 50k & 32k courses combined, encompassing all the fantastic highlights from both routes.Initially covering the full 50k circuit (as described below) & returning to Kielder Castle.

The course then follows the 32k route back out to Kielder Dam, returning along the scenic Kielder Water northern shoreline to Bakethin Reservoir.


50k Course Overview: Starting from Kielder Castle the initial section follows Viaduct Wood alongside the North Tyne river, before climbing steadily up to Castle Hill. Passing Devil's Lapful, an open section offers some fine views across the valley. This is followed by some awesome twisting singletrack on the blue graded mtb trail.

Soon after, the remote Wainhope Bothy (once an old farmstead) is reached. A longer section on forestry roads follows, before the steady climb up to Black Belling fell (323m). The views across Kielder Water are stunning from this point. An exhillarating descent leads to Kielder Dam & the welcome refreshment point at CP1.


Cross Kielder Dam (which is the longest section of tarmac on the whole course!) to join the Lakeside Way multi user trail. Pass Tower Knowe visitor centre, descend to Cranecleugh Burn & follow the trail around the beautiful Bull Crag peninsula as it weaves its way around the inlets & bays. At Freya's Cabin the route leaves the Lakeside Way, crossing the C200 road to CP2 at Kateshaw Hill, before the steady climb up to the high point of the course at Scald Hill (367m).  

Follow the Lakeside Way to cross the historic Kielder Viaduct. Then enjoy the views across the stunning Bakethin Reservoir, a designated nature reserve. At Bakethin Weir there is a chance to fill up your water bottle at the hydration station before the final climb past Deadman's Cairn & Castle Hill. The final descent takes you through the forest onto the Duchess Trail running alongside Kielder Burn before returning to Kielder Castle.


For the 50k runners this is the finish location. For the 82k it's a chance to refuel at CP3, enjoy the support & head out onto the remaining 32k circuit.

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Kielder 32k Course Overview: Although not an ultra distance, this is ideal if you're looking for a long distance challenge or maybe thinking of stepping up to an ultra in the future.

Incorporating everything the ultra includes...fantastic course, great support...just a few less miles...

The route is a shortened version of the ultra. Starting from Kielder Castle, the course initially follows the same route featuring the superb sections of Castle Hill, Wainhope Bothy & Black Belling Fell...& of course the great descent to a well earned feed station at Kielder Dam.

This is where the route deviates from the ultra, returning along the Lakeside Way following the northern shoreline of Kielder Water. The ultra route is re-joined at Bakethin reservoir, a final steady climb back up into the forest is soon followed by a superb descent back to the finish at Kielder Castle.

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Hydration/Feed Stations: These will be located at each of the control point locations. Our feed stations are normally well stocked with our delicious homemade flapjack (vegan), chocolate brownies (gluten free), jellies, bananas,savoury rolls, crisps, squash, coke, water & hot drinks (tea, coffee, chocolate).

As there may still be a potential risk of covid transmission we may not be providing our normal feed station supplies to help minimize food handling at feed stations. If this is the case, drop bags only for personal nutrition will be available for participants & transported to the aid stations.

To help minimize waste you will need to either bring your own water bottle, bladder, etc.


 Drop Bags (82k & 50k):  If you'd like some of your favourite nutrition or a bit of extra kit available on the course without having to carry it for the full duration, drop bags will be available for runners. These will be transported to to the feed stations at CP1 Kielder Dam Car Park (82k Runners) & CP2 (80k/50k Runners) & of course at Kielder Castle CP for the 82k run

This is a great event to bring along family & friends to offer encouragement & support & would provide a good day out in itself to see this amazing area. CP 1 at Kielder Dam is easily reached by vehicle or for the more adventurous by following the Lakeside Way cycle route. There are also numerous points along the whole course which are easily accesible from one of the many public parking areas. Additionally, with the 80k route returning back through the finish area at the 50k point, there's plenty of opportunity at this location. Click HERE for a downloadable Kielder Trails Guide.      


Facilities & Accommodation: On site catering (TBC), toilets, camping and camper van parking (TBC).


Kielder Village Camping & Caravan Site will be offering participants special 15% discounted rates for camping/motorhome/caravan accommodation making it an ideal venue for a full weekend (TBC).

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2022 UTMB Qualifying Event:

ITRA points are no longer required to access UTMB® Mont-Blanc. A new platform is now set up to allow for races to become UTMB® World Series Qualifiers.

If you're looking to collect points for the UTMB then:


83k: UTMB Points: 3


50k: UTMB Points: 2  

32k: UTMB Points: 1 

Previous Results:

 2018: 50k. / 100k

2017  Results: 100k   80k  50k


2016 Results 50KM - 80KM & 100KM

2015 Results 100k   80k   50k

2014 Race Results : 100km - 80km - 50km