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Trail Half marathons in UK

Find trail half marathons in UK in 2025/2026 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Gather on the summit of Moel y Parc at over 1300ft and follow the Offa's Dyke National Trail to the coast to finish line on the beach at Prestatyn.
  • Sun 12 Apr 2026
  • £33.50
Prestatyn, Clwyd, UK

Summit 2 Sea - The Offa's Dyke Half Marathon

Gather on the summit of Moel y Parc at over 1300ft and follow the Offa's Dyke National Trail to the coast to finish line on the beach at Prestatyn.

  • Newcomers
  • Enter online
  • Hilly
  • Event village
  • Rural
  • Coast
  • Mountains
  • Age 17 & over
  • 13.8 miles trail running + 2450 ft ascent
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
  • Fri 17 Apr 2026
  • £20-£27
Staines, Surrey, UK

Midweek Medal Madness Run | Half Marathon

The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.

  • Enter online
  • Age 17 & over
  • 13.1 miles trail running + 0 ft ascent
Not make it into The London Marathon but still fancy getting a super awesome medal based on the iconic race set in the capital city?
  • Sat 18 Apr 2026
  • £23-£35
Staines, Surrey, UK

The London Run | Half Marathon

Not make it into The London Marathon but still fancy getting a super awesome medal based on the iconic race set in the capital city?

  • Enter online
  • Age 17 & over
  • 13.1 miles trail running + 0 ft ascent
Come and join the run in a 4 or 6-hour running challenge, you’ll have plenty of time to enjoy the stunning route, push your limits, and, of course, earn your race bling!
  • Sun 19 Apr 2026
  • £27-£38
Dereham, Norfolk, UK

The Roman Ramble

Come and join the run in a 4 or 6-hour running challenge, you’ll have plenty of time to enjoy the stunning route, push your limits, and, of course, earn your race bling!

  • Families
  • Newcomers
  • Event village
  • Age 14 & over
  • 5K run
  • 10K run
  • Trail run
  • Half marathon 2
  • Marathon
  • + 1 more race
Missed out on the London Marathon Ballot? No probem! 'London Calling' is the special 'Not London' event!
  • Sun 26 Apr 2026
  • £37.50-£39.50
Blandford Forum, Dorset, UK

London Calling

Missed out on the London Marathon Ballot? No probem! 'London Calling' is the special 'Not London' event!

  • Newcomers
  • Enter online
  • Traffic free
  • Event village
  • Urban
  • Age 18 & over
  • 7 hrs multi terrain running + 33 ft ascent
Come and join this slice of racing joy through the picturesque Derbyshire countryside. With a slightly downhill second half - you've got gravity on your side and a truly beautiful route.
  • Sun 26 Apr 2026
  • £38
Ashbourne, Derbyshire, UK

Tissington Trail Marathon & Half Marathon | Half Marathon

Come and join this slice of racing joy through the picturesque Derbyshire countryside. With a slightly downhill second half - you've got gravity on your side and a truly beautiful route.

  • Enter online
  • PB
  • Traffic free
  • Age 17 & over
  • 13.1 miles trail running + 1053 ft ascent
Didn't get a ballot entry into The London Marathon 2026? Don't panic, come and run with Saturn Running instead!
  • Sun 26 Apr 2026
  • £22-£35
Aberdare, Mid Glamorgan, UK

The Nearly But Not Quite London Marathon - Wales | Half Marathon

Didn't get a ballot entry into The London Marathon 2026? Don't panic, come and run with Saturn Running instead!

  • Enter online
  • Age 17 & over
  • 13.1 miles trail running + 0 ft ascent
The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.
  • Fri 1 May 2026
  • £20-£27
Egham, Surrey, UK

Midweek Chasing Numbers May | Half Marathon

The aim of the midweek runs is to hold events as cheaply as possible in order for people to be able to build their numbers or simply to help people achieve their own goals at an affordable price.

  • Enter online
  • Age 17 & over
  • 13.1 miles trail running + 0 ft ascent
Come and join the day of running and aim to complete a midweek half marathon within the 7-hour time limit on a scenic course then receive a fantastic medal and goody bag at the finish!
  • Mon 4 May 2026
  • £20-£27
Staines, Surrey, UK

Bank Holiday Madness May | Half Marathon

Come and join the day of running and aim to complete a midweek half marathon within the 7-hour time limit on a scenic course then receive a fantastic medal and goody bag at the finish!

  • Enter online
  • Flat
  • Age 17 & over
  • 13.1 miles trail running + 0 ft ascent
The multi-terrain half marathon is mostly on road and covers a section of the longer distance routes.
  • Sun 10 May 2026
  • £35
Naseby, Northamptonshire, UK

Shires and Spires | Half Marathon

The multi-terrain half marathon is mostly on road and covers a section of the longer distance routes.

  • Chip timing
  • Enter online
  • Undulating
  • Age 18 & over
  • 13.4 miles multi terrain running + 897 ft ascent
  • Sat 16 May 2026
Keswick, Cumbria, UK

Keswick Mountain Festival | adidas TERREX Half Marathon Trail Run

  • 25 km trail running + 750 m ascent
By popular demand, a half marathon trail race has been added to the multi-sports weekend at the scenic Roadford Lake, with an inclusive and encouraging atmosphere, and lakeside camping.
  • Sat 16 May 2026
  • £28
Lifton, Devon, UK

Roadford Lake Trail Races | Half Marathon

By popular demand, a half marathon trail race has been added to the multi-sports weekend at the scenic Roadford Lake, with an inclusive and encouraging atmosphere, and lakeside camping.

  • Chip timing
  • Enter online
  • Age 15 & over
  • 13.1 miles trail running + 1298 ft ascent
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
  • Thu 21 May 2026
  • £17-£30
Durham, County Durham, UK

Dun Holm Challenge | Day 1 | Half Marathon

Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.

  • Enter online
  • Age 17 & over
  • 13.1 miles trail running + 72 ft ascent
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
  • Fri 22 May 2026
  • £17-£30
Durham, County Durham, UK

Dun Holm Challenge - Day 2 | Half Marathon

Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.

  • Enter online
  • Undulating
  • Age 17 & over
  • 13.1 miles trail running + 72 ft ascent
Can you survive Farmmageddon? A fantastic half marathon through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
  • Sat 23 May 2026
  • £33-£38
Buntingford, Hertfordshire, UK

Farmmageddon | Half Marathon

Can you survive Farmmageddon? A fantastic half marathon through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.

  • Chip timing
  • Enter online
  • Traffic free
  • Age 18 & over
  • 13.1 miles trail running + 164 ft ascent
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
  • Sat 23 May 2026
  • £17-£30
Durham, County Durham, UK

Dun Holm Challenge | Day 3 | Half Marathon

Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.

  • Enter online
  • Undulating
  • Age 17 & over
  • 13.1 miles trail running + 72 ft ascent
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
  • Sun 24 May 2026
  • £17-£30
Durham, County Durham, UK

Dun Holm Challenge | Day 4 | Half Marathon

Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.

  • Enter online
  • Undulating
  • Age 17 & over
  • 13.1 miles trail running + 72 ft ascent
Based out of East Hull this race will run out on the TransPennine Trail towards Hornsea, it should allow runners to enjoy a flat even surface ideal or both beginners or for seasoned athletes...
  • Sun 24 May 2026
  • £30-£32
Hull, East Yorkshire, UK

Get the Hull out of Here | Half Marathon

Based out of East Hull this race will run out on the TransPennine Trail towards Hornsea, it should allow runners to enjoy a flat even surface ideal or both beginners or for seasoned athletes...

  • Enter online
  • Flat
  • PB
  • Age 17 & over
  • 13.1 miles trail running + 33 ft ascent
Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.
  • Mon 25 May 2026
  • £17-£30
Durham, County Durham, UK

Dun Holm Challenge | Day 5 | Half Marathon

Whether you are a Durham resident, you just love the area, or you fancy running along the River Wear with views of the Cathedral, then this looped half marathon is for you! Durham-themed medals too.

  • Enter online
  • Undulating
  • Age 17 & over
  • 13.1 miles trail running + 72 ft ascent
New! A weekend of inclusive trail races, camping, festival vibes, yoga workshops, guided runs, live music and outdoor cinema, all based in the grounds of the iconic Blair Castle in the Cairngorms.
  • Sun 31 May 2026
  • £55
Pitlochry, Perth and Kinross, UK

Blair Castle Trail Weekender | Atholl Trail Half Marathon 21.1K

New! A weekend of inclusive trail races, camping, festival vibes, yoga workshops, guided runs, live music and outdoor cinema, all based in the grounds of the iconic Blair Castle in the Cairngorms.

  • Chip timing
  • Enter online
  • Mountainous
  • Traffic free
  • Age 18 & over
  • 21.1 km trail running + 400 m ascent
The UK’s favourite 24-hour trail race! Epic, Brutal, Relentless. Race against the clock to tackle as many laps of the iconic course as you can. How far can you go in 24 hours?
  • Sat 6 - Sun 7 Jun 2026
  • £95-£105
  • 2 charities
  • Team & charity places only
Reading, Berkshire, UK

Endure24 | Reading

The UK’s favourite 24-hour trail race! Epic, Brutal, Relentless. Race against the clock to tackle as many laps of the iconic course as you can. How far can you go in 24 hours?

Team & charity places only

  • Dogs allowed at venue
  • Entertainment
  • Music
  • Ballot
  • Chip timing
  • Enter online
  • Event village
  • Event expo
  • Park
  • Free venue entry
  • Sustainability policy
  • Relay
  • Age 18 & over
  • 24 hrs multi terrain running
Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon on the same day was previously rated one of the top UK marathons.
  • Sat 13 Jun 2026
  • £43-£45
Wadhurst, East Sussex, UK

Bewl Water Summer | Half Marathon

Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes. The marathon on the same day was previously rated one of the top UK marathons.

  • Chip timing
  • Enter online
  • Hilly
  • Age 17-80
  • 13.1 miles trail running + 710 ft ascent
Coastal paths with a satisfying mix of hills plus flatter, faster sections on a multi-lap route round the stunning Mount Edgcumbe Peninsula — a spectacular half marathon coastal challenge.
  • Sat 13 Jun 2026
  • £28
Torpoint, Cornwall, UK

Rame Head Race | Half Marathon

Coastal paths with a satisfying mix of hills plus flatter, faster sections on a multi-lap route round the stunning Mount Edgcumbe Peninsula — a spectacular half marathon coastal challenge.

  • Chip timing
  • Enter online
  • Flat
  • Hilly
  • Age 16 & over
  • 13.1 miles trail running + 2092 ft ascent
Come and join in for Lord of The Run run! Whether you love the series of books and the film franchise or you just fancy a run along the beautiful River Wear, then this is the event for you!
  • Sun 21 Jun 2026
  • £17-£29
Durham, County Durham, UK

Lord of The Run - North | Half Marathon

Come and join in for Lord of The Run run! Whether you love the series of books and the film franchise or you just fancy a run along the beautiful River Wear, then this is the event for you!

  • Enter online
  • Age 17 & over
  • 13.1 miles trail running
Race a half marathon through the beautiful grounds of the Cholmondeley Castle estate in this event for a range of levels of runner, then celebrate with friends and family in the festival village.
  • Sun 21 Jun 2026
  • £36-£45
Malpas, Cheshire, UK

Cholmondeley Castle | Half Marathon

Race a half marathon through the beautiful grounds of the Cholmondeley Castle estate in this event for a range of levels of runner, then celebrate with friends and family in the festival village.

  • Chip timing
  • Enter online
  • Age 16 & over
  • 21.1 km trail running

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