Trail Half marathons in UK
Find trail half marathons in UK in 2026/2027 - filter by date, location or category, display on a map or use the advanced search to find your perfect race.
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MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Sun 10 May
- £35
Shires and Spires | Half Marathon
The multi-terrain half marathon is mostly on road and covers a section of the longer distance routes.
- 13.4 miles multi terrain running + 897 ft ascent
- Sun 10 May
- £30
Something Wild Festival | Half Marathon
A stunning but tough half marathon trail race taking in the South West Coast Path for runners (and walkers) of all abilities with chip timing and medals for all, plus an uplifting festival weekend!
- 13.1 miles trail running + 2001 ft ascent
- Sat 16 May
- £26-£28
Lincolnshire Run | Half Marathon
Welcome to a 6-hour timed running event where you can run a half marathon at your own pace on an out-and-back route, with fuel stations each lap, and a medal and goody bag at the finish.
- 13.1 miles trail running + 132 ft ascent
- Sat 16 May
- £70
Keswick Mountain Festival | adidas TERREX Half Marathon Trail Run
This 25km is graded ‘hard’ and is on technical, fast flowing and rugged trails around Derwentwater, the Borrowdale Valley and the Watendlath Valley. Includes Full Weekend Festival Ticket in the price!
- 25 km trail running + 750 m ascent
- Sat 16 May
- £28
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.
- 13.1 miles trail running + 1298 ft ascent
- Thu 21 May
- £17-£29
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.
- 13.1 miles trail running
- Fri 22 May
- £17-£29
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.
- 13.1 miles trail running
- Sat 23 May
- £33-£38
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.
- 13.1 miles trail running + 656 ft ascent
- Sat 23 May
- £17-£29
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.
- 13.1 miles trail running
- Sun 24 May
- £17-£29
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.
- 13.1 miles trail running
- Sun 24 May
- £30-£32
Get the Hull out of Here | Half Marathon
Based out of East Hull this half marathon 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.
- 13.1 miles trail running
- Mon 25 May
- £17-£29
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.
- 13.1 miles trail running
- Sun 31 May
- £30-£32
Rothwell Cakeathon | Half Marathon
Run. Refuel. Repeat. Take on the Rothwell Cakeathon and earn every slice in this friendly, traffic-free, flat, runnable course with a welcoming, no-pressure atmosphere.
- 13.1 miles trail running
- Sun 31 May
- £55
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.
- 21.1 km trail running + 400 m ascent
- Sat 6 - Sun 7 Jun
- £95-£105
- Team places only
Endure24 | Reading
The UK’s biggest 24-hour relay! Epic, Brutal, Relentless. Race against the clock to tackle as many laps of the stunning 8km course as you can. How far can you go in 24 hours?
- 24 hrs multi terrain running
- Sun 7 Jun
- £32
Wendover Woods Half Marathon
Come and conquer the Wendover Woods this summer and enjoy a scenic forest trail half marathon challenge to delight the senses.
- 13.1 miles trail running + 1483 ft ascent
- Fri 12 Jun
- £15-£27
Midweek Chasing Numbers June | 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.
- 13.1 miles trail running
- Sat 13 Jun
- £43-£45
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.
- 13.1 miles trail running + 710 ft ascent
- Sat 13 Jun
- £30
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.
- 13.1 miles trail running + 2092 ft ascent
- Sun 14 Jun
- £30-£32
Roche Abbey Ramble | Half Marathon
Explore rolling trails, woodland and grassy lanes on this scenic, lapped half marathon around historic Roche Abbey — a relaxed yet challenging run for all levels.
- 13.1 miles trail running + 144 ft ascent
- Sun 21 Jun
- £15-£29
Lord of The Run | North
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!
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sun 21 Jun
- £30-£32
Breezy in Brighouse & Special Solstice Run | Half Marathon
Celebrate the longest night with a breezy, atmospheric half marathon through Brighouse. Enjoy open-air vibes, community spirit and the chance to move and connect under summer skies.
- 13.1 miles trail running + 144 ft ascent
- Sat 27 Jun
- £27-£38
Cock-a-doodle Dawdle
Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
- Multi-terrain run 2
- 5K run
- 10K run
- Trail run
- Half marathon 2
- Sat 27 Jun
- £63
South Scotland Outdoor Festival | Run Drumlanrig Half Marathon
Longest race of the weekend. This half marathon takes in the full estate and some stunning scenes along the way.
- 21 km trail running + 350 m ascent
- Sat 27 - Sun 28 Jun
- £95-£105
- Team & charity places only
Endure24 | Leeds
The north's biggest 24-hour relay! 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?
- 24 hrs multi terrain running