- Sat 4 Oct 2025
- £22-£24
- Sat 4 Oct 2025
- £22-£24
Active Northumberland Kielder 10K
Come and Beat the Bull! Run the Kielder 10K around the stunning Bull Crag Peninsula of Kielder Water and enjoy the stunning scenery of one of the most beautiful 10Ks in the UK.
- Enter online
- Undulating
- Traffic free
- Age 15 & over
- 10 km trail running
- Sun 5 Oct 2025
- £37-£39
- Sun 5 Oct 2025
- £37-£39
Active Northumberland Kielder Marathon
Circumnavigate the largest man-made lake in northern Europe, Kielder Water, on an off-road marathon which is one of the most stunning marathon races around!
- Enter online
- Undulating
- Traffic free
- Age 18 & over
- 26.2 miles trail running
- Sun 5 Oct 2025
- £32-£34
- Sun 5 Oct 2025
- £32-£34
Active Northumberland Kielder Half Marathon
Race along hard-packed trails around the shore of Kielder Water in this beautiful but tough half-marathon, all part of a weekend celebration of running!
- Enter online
- Undulating
- Traffic free
- Age 17 & over
- 13.1 miles trail running
- Sun 5 Oct 2025
- £8
- Sun 5 Oct 2025
- £8
Active Northumberland Kielder Junior | The Ospreys
This fun 1.5km race for children aged 6 to 10 takes place within the Kielder Waterside Park boundary and juniors get to cross over the iconic Marathon finish line alongside the stunning Kielder Water.
- Enter online
- Undulating
- Traffic free
- Age 6-10
- 1.5 km trail running
- Sun 5 Oct 2025
- £8
- Sun 5 Oct 2025
- £8
Active Northumberland Kielder Junior | The Falcons
The Falcons cover 2.5km within the Kielder Waterside Park boundary and is for children age 11-15. Cross over the iconic Marathon finish line alongside the stunning Kielder Water!
- Enter online
- Undulating
- Traffic free
- Age 11-15
- 2.5 km trail running
- Sun 17 Nov
Slaley Hall & Forest Half Marathon & 10K | Half Marathon
- 13.1 miles trail running
- Sun 17 Nov
Slaley Hall & Forest Half Marathon & 10K | 10K
- 10 km trail running
- Sun 23 Mar 2025
TRAILDOG Kielder Waterside | Family Wolfpack Run
- 1 mile trail running
- Sun 23 Mar 2025
TRAILDOG Kielder Waterside | Half Marathon
- 13.1 miles road running