WINTER DUATHLON
RUN/ MTB/ RUN – 22nd Nov 2026
SOLO OR PAIR
The Deadwater Dirty Duathlon is a winter duathlon to get stuck into before the Christmas madness. Two trail runs and mountain bike lap that can be attacked with vigour or just ticked off at your own pace. Running out of Kielder castle you will hit some steep running trails and blast round high quality mountain bike tracks. This is November in northern England so expect conditions to be tough. Take on the challenge of doing all three legs on your own or team up to split the runs and the cycling.
Event Info
When: 22nd Nov 2026, First run starts 10am.
Where: Kielder castle, Northumberland, NE48 1ER. Google pin: https://maps.app.goo.gl/Q5EEiQCFakE2syYb8
Distances (subject to change):
Run 1: 10km
MTB: 12km red graded trails and taking you to the summit of Deadwater (weather permitting)
Run 2: 7.5km
Is the course marked? Yes. We will guide out the first run leg by following a bike. The runs and the bike legs will have different colour signs from then on. We will also make gpx files available for each leg.
Open/Closed Trails: Some sections of the trails being used will be closed to the public. Others will not. Please use your common sense when dealing with members of the public.
How much?
Early bird until March 31st:
Solo: £30
Team: £38
Standard price from April:
Solo: £38
Team of 2: £46
Plus eventbrite booking fee. Entry includes race number, safety team, professional comms cover, medical staff, sign posted route, lots of prize categories and a high quality course.
No refunds or deferrals after 14 days. You are able to swap your place with someone else if you wish.
Event Schedule
06:00 – Registration opens at Kielder castle for competitors
08:30 – Registration closes
08:45 – Safety briefing at start line
09:00 – Race starts by being led out by bike.
Prizes most likely to be given as soon as practical after race.
Parking
Ample parking available within walking distance of the castle. This is a pay and display car park owned by the Forestry and it was £2 at the time of writing.
Registration
Registration takes place within Kielder castle. Here you will be given your timing device, number and directions for where to put your bike and kit in transition area.
Camping
No camping offered. Van/motorhome parking is available in the castle car park for a fee (£15 at the time of writing). There is also a toilet within walking distance.
Toilets
Public toilets available right across the road from Kielder castle.
Catering
There is a catering truck situated at the at the castle but it’s usually closed in the winter. We hope to either get that open or bring our own.
Water
Please bring your own water supply. Water sources are prone to freezing in the winter.
Transition
Transition will be achieved by going around the circumference of the castle in a clockwise direction. Bike will be placed on the left hand side of the castle on racking.