Dambusters 10k
Silent Valley, Down
8 Aug 2026
⚠ Start times change frequently. Always check with race organiser or their website for this year's confirmed start time before travelling.
Course map
Confirmed by race organiser
Elevation profile
About this race
The Dambusters 10k is a road and trail race organised by Born 2 Run Events, held at Silent Valley Mountain Park in Annalong, County Down, set within the Mourne Area of Outstanding Natural Beauty. The course starts and finishes at the Silent Valley Mountain Centre, following an out-and-back route with a turning point at the dam itself, approximately at the halfway mark. Runners travel out through the spectacular glacial valley on road and path surfaces, with the Silent Valley reservoir and the Mourne Wall providing dramatic backdrops throughout. A single water station is provided at the dam turning point. Running shoes are suitable for all terrain on the course, and all finishers receive a Dambusters medal with chip timing for race participants. The event shares its start and finish with the 10 Mile and 5k distances, and is held as part of one of Northern Ireland's most visually striking and well-attended summer race events.
Course profile & record eligibility
World Athletics record-eligibility rules cap net elevation loss at 1m per km of race distance, and require the start and finish to be no more than 50% of the race distance apart — both meant to stop a course gaining an unfair edge from downhill grade or a point-to-point tailwind. This is based on this course's recorded elevation and GPS data, not an official measurement or certification.