Glentress Trail Half Marathon
Glentress Trail Half Marathon is a trail half marathon held in Peebles, United Kingdom, in November. It is run from the Glentress Peel Visitor Centre in the Scottish Borders, and a 10K trail race starts alongside the 21K on the same day.
The longer route covers roughly 900 metres of climbing and peaks at 572 metres. Runners cross woodland singletrack, hard-packed gravel, forest tracks and stretches of open moorland, and parts of the mountain bike trail network are included. Descents are technical in places.
The 10K is shorter but steep, with about 393 metres of ascent, most of it in the first six kilometres, and a high point of 508 metres. Both courses are fully waymarked, so no navigation experience is needed.

Who it's for
A solid challenge for committed trail running athletes.
Good fit if you…
- have done a few events and want a real challenge
- want a choice of distances
Maybe not if you…
- want a big marquee event: this is a smaller, local-scale race
What should you know about Glentress Trail Half Marathon?
- Date
- Saturday, 14 November 2026
- Format
- 10K · Half Marathon
How do you register for Glentress Trail Half Marathon?
Where does Glentress Trail Half Marathon take place?
Peebles, United Kingdom
Train near this race
Places to train within 15 km of the start, picked for trail running.
- parkrunWebsite
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