Sunday 10th January 2021

We're planning to open entries for this event once the Covid 19 situation improves.
This date is subject to UK Government clearance for public events. We'll post updates here when available.

A superb off road event based in Kielder Forest Park. This event is ideal if you are new to duathlons or aiming to compete in your first off road event. With stunning scenery & an extensive network of forest tracks and purpose built bike trails, this is a spectacular location for trail running and mountain biking.


Held in conjunction with the Kielder Winter 10m Trail Race & the Kielder Dark Skies 10k Night Race on the Saturday.

The event is open to individuals or relay pairs.

Date: Sunday 10th January 2021   Start Time: 10.30am

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

Registration: Between 8.30am and 10am on the Sunday. Event numbers will be issued at registration.

Relay Category for Pairs: One person cycles, the other runs. This is open for male, female & mixed teams - ideal for specialist runners/cyclists or beginners who would like to test themselves over a single discipline.

Entry Fee: Individual Entry: £35.00     Relay Entry:  £45.00

Entries on the day are charged at an extra £5. Minimum entry age 18 years old.
Event Terms & Conditions can be found HERE

Included: Professionally run event, qualified & experienced personnel, qualified medical support, electronic chip timing, online registration, fully marked routes, event  memento, refreshments at finish, a great event venue & contribution to Kielder Water & Forest Park (This helps towards trail maintenance).

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

Course: Starting and finishing at Kielder Castle, the event consists of a 8km trail run followed by a 20km mountain bike, incorporating the new blue graded bike trail, finishing with a final 6km trail run. Due to the time of year both runs will be staying fairly low on a good mix of forest tracks and woodland trails. The run routes are not too hilly or steep. The courses will be fully marked, therefore no navigational skills are needed. 

Click on the map to view a detailed & interactive version illustrating the elevation profile

Screenshot (238).png

Run 1: Starting and finishing at Kielder castle, the initial loop heads out along a fast forest trail before picking up a single track section towards Ravenshill. The trail climbs gradually with superb views across the whole valley. A fast runable descent leads to the secluded Archer Cleugh burn, then from here return back to Kielder Castle which is just over half way on the course at this point.

Cycle: The mountain bike section incorporates the new Blue graded trail, which is a superb flowing trail and gives you some of the great vistas Kielder has to offer.  It is an undulating route with few technical aspects such as drop offs or rocks, so it is suitable for the less experienced riders and those not wanting a too tough and technical route.

The mtb route is suitable for both mtb and cyclo cross bikes.

The first section leads out along the forest drive towards East Kielder farm. The main section is a mixture of flowing singletrack linked by forest roads. After descending to the Lakeside Way the route then climbs steadily back towards Castle Hill before finishing with an exhilarating singletrack descent back to Kielder Castle. The climbs are of an undulating nature with no steep gradients. We will also be incorporating one small 200m section of uphill forest singletrack near to Castle Hill. 

Run 2: The second run follows the course of the old railway line, initially crossing kielder Viaduct, then runs parallel to Bakethin reservoir nature reserve, keeping fairly flat for the first few kilometres. A steady climb on forest tracks turns into woodland singletrack to the bridge at Kielder Burn, leading back to the castle.

The event includes a team competition, with the first 3 athletes across the line from each club/team to count. If you are entering as a group of friends then give yourselves a team name & you may be elegible for a prize.

Participant Feedback:

"Another great race from High Terrain, low key, professional and always a memorable point of interest in every course! This race is suitable for any level of experience, offering fast racing with technical interest for the more experienced to a manageable challenge for a beginner. Well marked and marshalled, plenty of parking and a great cafe on site for a brew and cake after the race" Chris Stirling

"Great event and course, thank you. An excellent well organised event, great crowed of people as well. Thanks"  Adam Hogarth

"Excellent event with a really friendly crowd of organisers, marshals spectators and competitors! Thanks to the lovely people at the end who fed me when I ran out of fuel!! Well done to all the prize winners!! Amazing efforts!!! " Caroline Cunningham

"Thanks to all the marshals and the organisers! Great event and a great venue! "  David Poole

"Just wanted to say thank you for a brilliant event on Sunday in Kielder " Andy McClure.


Kielder Castle cafe will be open for the event, providing hot food & drinks. Warm up, refuel & enjoy the open log fire in this cosy family run cafe...


Previous Results:

2018  HERE

2016 HERE

2014  HERE.

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