Set in Glentress Forest between Peebles and Innerleithen, the Glentress Trail Marathon 2026 gives runners a full-strength winter mountain-trail challenge on 15 February 2026. The 42 km course is built from two circuits of the 21 km loop, packing in roughly 1,260 m of ascent over hard-packed forest roads, twisting singletrack, heather moorland and sections of the blue, red and black MTB trails. Climbs to the high points of the forest reward runners with big views over the Tweed Valley before long, flowing descents back towards the trailhead. With additional 21 km, 10 km and 5 km options on the same style of terrain, the event suits anyone from committed trail marathoners to runners stepping up to hillier off-road distances. It’s a demanding but rewarding day out in classic Scottish winter conditions.
Races
New for the 2026 programme, the Glentress 5K Trail Race is scheduled on Sunday, 15 February 2026 from Glentress Peel Visitor Centre, again organised by High Terrain Events alongside the longer races. This short loop on forest trails offers a friendly, lower-commitment way to experience Glentress’ scenery and race-day buzz, ideal for newer trail runners or anyone after a quick hit of off-road fun.
Also on 15 February 2026 at 11:00, the Glentress 10K Trail Race starts at Glentress Peel Visitor Centre near Peebles, under the same High Terrain Events banner. Designed as a challenging but accessible introduction to trail running, it climbs “slightly higher” for big Tweed Valley panoramas before rewarding runners with flowing descents back through the forest.
The Glentress Trail Half Marathon (21 km) takes place on Sunday, 15 February 2026 at 10:30 from Glentress Peel Visitor Centre, again in the heart of Glentress Forest and organised by High Terrain Events. With roughly 600 m+ of climbing on a loop of gravel tracks, twisting singletrack and MTB trail, this course gives a punchy, technical half packed with Tweed Valley views.
On 15 February 2026 at 09:30, the Glentress Trail Marathon (42 km) sends runners on two big laps from Glentress Peel Visitor Centre through Glentress Forest between Peebles and Innerleithen, organised by High Terrain Events. Combining around 1,260 m of ascent with forest singletrack, open moorland and famous MTB sections like The Goat Track and Spooky Woods, it’s a demanding but spectacular Scottish Borders mountain-trail marathon.
Weather based on historical averages.
FAQs
What is the Glentress Trail 5K?
How long is the Glentress Trail 5K?
Where does the Glentress Trail 5K take place?
What is the elevation gain of the Glentress Trail 5K?
How can I prepare for the Glentress Trail 5K?
How do I choose the right training plan for the Glentress Trail 5K?
New for the 2026 programme, the Glentress 5K Trail Race is scheduled on Sunday, 15 February 2026 from Glentress Peel Visitor Centre, again organised by High Terrain Events alongside the longer races. This short loop on forest trails offers a friendly, lower-commitment way to experience Glentress’ scenery and race-day buzz, ideal for newer trail runners or anyone after a quick hit of off-road fun.
The Glentress Trail 5K is 5km long.
The Glentress Trail 5K takes place in Peebles, UK.
Runna classifies the Glentress Trail 5K elevation profile as Hilly.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Glentress Trail 5K?
New for the 2026 programme, the Glentress 5K Trail Race is scheduled on Sunday, 15 February 2026 from Glentress Peel Visitor Centre, again organised by High Terrain Events alongside the longer races. This short loop on forest trails offers a friendly, lower-commitment way to experience Glentress’ scenery and race-day buzz, ideal for newer trail runners or anyone after a quick hit of off-road fun.
How long is the Glentress Trail 5K?
The Glentress Trail 5K is 5km long.
Where does the Glentress Trail 5K take place?
The Glentress Trail 5K takes place in Peebles, UK.
What is the elevation gain of the Glentress Trail 5K?
Runna classifies the Glentress Trail 5K elevation profile as Hilly.
How can I prepare for the Glentress Trail 5K?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Glentress Trail 5K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Glentress Trail 10K?
How long is the Glentress Trail 10K?
Where does the Glentress Trail 10K take place?
What is the elevation gain of the Glentress Trail 10K?
How can I prepare for the Glentress Trail 10K?
How do I choose the right training plan for the Glentress Trail 10K?
Also on 15 February 2026 at 11:00, the Glentress 10K Trail Race starts at Glentress Peel Visitor Centre near Peebles, under the same High Terrain Events banner. Designed as a challenging but accessible introduction to trail running, it climbs “slightly higher” for big Tweed Valley panoramas before rewarding runners with flowing descents back through the forest.
The Glentress Trail 10K is 10km long.
The Glentress Trail 10K takes place in Peebles, UK.
Runna classifies the Glentress Trail 10K elevation profile as Hilly.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Glentress Trail 10K?
Also on 15 February 2026 at 11:00, the Glentress 10K Trail Race starts at Glentress Peel Visitor Centre near Peebles, under the same High Terrain Events banner. Designed as a challenging but accessible introduction to trail running, it climbs “slightly higher” for big Tweed Valley panoramas before rewarding runners with flowing descents back through the forest.
How long is the Glentress Trail 10K?
The Glentress Trail 10K is 10km long.
Where does the Glentress Trail 10K take place?
The Glentress Trail 10K takes place in Peebles, UK.
What is the elevation gain of the Glentress Trail 10K?
Runna classifies the Glentress Trail 10K elevation profile as Hilly.
How can I prepare for the Glentress Trail 10K?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Glentress Trail 10K?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Glentress Trail Half Marathon?
How long is the Glentress Trail Half Marathon?
Where does the Glentress Trail Half Marathon take place?
What is the elevation gain of the Glentress Trail Half Marathon?
How can I prepare for the Glentress Trail Half Marathon?
How do I choose the right training plan for the Glentress Trail Half Marathon?
The Glentress Trail Half Marathon (21 km) takes place on Sunday, 15 February 2026 at 10:30 from Glentress Peel Visitor Centre, again in the heart of Glentress Forest and organised by High Terrain Events. With roughly 600 m+ of climbing on a loop of gravel tracks, twisting singletrack and MTB trail, this course gives a punchy, technical half packed with Tweed Valley views.
The Glentress Trail Half Marathon is 21km long.
The Glentress Trail Half Marathon takes place in Peebles, UK.
The Glentress Trail Half Marathon elevation gain is 600 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Glentress Trail Half Marathon?
The Glentress Trail Half Marathon (21 km) takes place on Sunday, 15 February 2026 at 10:30 from Glentress Peel Visitor Centre, again in the heart of Glentress Forest and organised by High Terrain Events. With roughly 600 m+ of climbing on a loop of gravel tracks, twisting singletrack and MTB trail, this course gives a punchy, technical half packed with Tweed Valley views.
How long is the Glentress Trail Half Marathon?
The Glentress Trail Half Marathon is 21km long.
Where does the Glentress Trail Half Marathon take place?
The Glentress Trail Half Marathon takes place in Peebles, UK.
What is the elevation gain of the Glentress Trail Half Marathon?
The Glentress Trail Half Marathon elevation gain is 600 metres, which Runna classifies as a Hilly race.
How can I prepare for the Glentress Trail Half Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Glentress Trail Half Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Glentress Trail Marathon?
How long is the Glentress Trail Marathon?
Where does the Glentress Trail Marathon take place?
What is the elevation gain of the Glentress Trail Marathon?
How can I prepare for the Glentress Trail Marathon?
How do I choose the right training plan for the Glentress Trail Marathon?
On 15 February 2026 at 09:30, the Glentress Trail Marathon (42 km) sends runners on two big laps from Glentress Peel Visitor Centre through Glentress Forest between Peebles and Innerleithen, organised by High Terrain Events. Combining around 1,260 m of ascent with forest singletrack, open moorland and famous MTB sections like The Goat Track and Spooky Woods, it’s a demanding but spectacular Scottish Borders mountain-trail marathon.
The Glentress Trail Marathon is 42km long.
The Glentress Trail Marathon takes place in Peebles, UK.
The Glentress Trail Marathon elevation gain is 1260 metres, which Runna classifies as a Hilly race.
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
What is the Glentress Trail Marathon?
On 15 February 2026 at 09:30, the Glentress Trail Marathon (42 km) sends runners on two big laps from Glentress Peel Visitor Centre through Glentress Forest between Peebles and Innerleithen, organised by High Terrain Events. Combining around 1,260 m of ascent with forest singletrack, open moorland and famous MTB sections like The Goat Track and Spooky Woods, it’s a demanding but spectacular Scottish Borders mountain-trail marathon.
How long is the Glentress Trail Marathon?
The Glentress Trail Marathon is 42km long.
Where does the Glentress Trail Marathon take place?
The Glentress Trail Marathon takes place in Peebles, UK.
What is the elevation gain of the Glentress Trail Marathon?
The Glentress Trail Marathon elevation gain is 1260 metres, which Runna classifies as a Hilly race.
How can I prepare for the Glentress Trail Marathon?
The best way to train for the next race is to use a personalised training plan that takes into account your current running ability, schedule, and preferences.
This will help you steadily improve your running performance and get ready for the race without risking an injury.
Check out our training plans to find the best running program for your goals!
How do I choose the right training plan for the Glentress Trail Marathon?
Which plan you choose will depend on your experience, schedule, objectives, and the date of the race.
Runna offers personalised training plans for every runner and every goal: Whether this is your first, 10th or 100th race, we'll help you get the most out of your training and smash your goals.
Check out our training plans to find the best running program for your goals!
This event listing is for informational purposes only. Runna is not affiliated with, endorsed by, or sponsored by Glentress Trail Marathon or High Terrain Events. All event details are based on publicly available information and are provided solely to help users discover running events. Runna does not use any official logos, images, or proprietary content from this event or its organiser. Any trademarks or names mentioned are used descriptively to identify the event in a factual manner. For the most accurate and up to date information (including to register or purchase an entry to the event), please visit the Glentress Trail Marathon website.
