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.
Filter by place
Glasgow
Liverpool
Manchester
Leeds
Sheffield
London
South East
South West
East of England
East Midlands
West Midlands
Yorkshire
North East
North West
Scotland
Wales
Northern Ireland
Everywhere
Filter by date
This week
This weekend
Next week
Next weekend
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Mar
Spring
Summer
Autumn
Winter
Filter by category
MapEvent listings
Select an event for photos, video, route, location, reviews, entry fees and how to enter.
- Fri 17 Apr
- £15-£27
Midweek Medal Madness Run April | 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 18 Apr
- £15-£35
The London Run
Not made it into The London Marathon but still fancy getting a super awesome medal based on the iconic race set in the capital city?
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sat 18 Apr
- £32-£34
Spring Run | Half Marathon
Welcome to a 6-hour timed running event where you can run a half marathon at your own pace on a beautiful route, with fuel stations each lap, and a medal and goody bag at the finish.
- 13.1 miles trail running
- Sat 18 Apr
- FREE-£36
Spring Trail Series | 12K
Join over 1,200 runners and walkers to the Serpent Trail, a stunning route that weaves through the greensand hills, rivers, woodland, and lowland heath of the South Downs National Park.
- 12 km trail running + 130 m ascent
- Sun 19 Apr
- £27-£38
The Roman Ramble
A relaxed, lap-based trail run through picturesque countryside, giving you complete control over your distance — perfect for beginners, returning runners or those chasing longer goals.
- 5K run
- 10K run
- Trail run
- Half marathon 2
- Marathon
- + 1 more race
- Sun 19 Apr
- £22-£34
Who You Going To Call? - Northampton | Half Marathon
Come and join in for the Who You Going To Call? event! Whether you run 3km or for the whole 7 hours, you will earn yourself one of the incredible medals to celebrate your achievement!!
- 13.1 miles trail running
- Sun 19 Apr
- £32-£34
Tempting at Tempsey | Half Marathon
If you've never visited or run around the grounds of Temple Newsam then you're in for a treat with this half marathon. Temple Newsam is a jewel in the crown for Leeds.
- 13.1 miles trail running
- Sun 19 Apr
- £18
Trail Blazer: Dam Busters | Half Marathon
Set in the heart of an AONB on the legendary Pennine Way, this brand-new half marathon trail race brings a signature community, energy, and wild trails to one of the UK's most iconic landscapes.
- 13.1 miles trail running
- Sun 26 Apr
- £15-£35
The Nearly But Not Quite London Marathon | Wales
Didn't get a ballot entry into The London Marathon? Don't panic, come and experience this event instead and earn a fantastic London-themed medal!
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- Sun 26 Apr
- £37.50-£39.50
London Calling
Missed out on the London Marathon Ballot? No probem! 'London Calling' is the special 'Not London' event!
- 7 hrs multi terrain running + 33 ft ascent
- Sun 26 Apr
- £38
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.
- 13.1 miles trail running + 1053 ft ascent
- Fri 1 May
- £15-£27
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.
- 13.1 miles trail running
- Sat 2 May
- £35-£36
May the Fourth be with you (original) | Half Marathon
Take on a stunning trail half marathon challenge across the Shropshire Hills, with epic scenery, and a rewarding finish earned mile by mile.
- 13.1 miles trail running + 2474 ft ascent
- Sun 3 May
- £32
The Bluebell Bash | Half Marathon
Be sure to add this trail half through scenic bluebell forests to your spring running calendar. With fully-stocked aid stations, gorgeous scenery and a finisher’s medal, it's for everyone.
- 13.1 miles trail running + 702 ft ascent
- Mon 4 May
- £15-£27
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!
- 13.1 miles trail running
- Sat 9 May
- £43-£45
Magna Carta Summer | Half Marathon
The Magna Carta Half Marathon is based in scenic Runnymede right near the historic site where the treaty of Magna Carta was agreed by King John of England and signed on 15th June 1215.
- 13.1 miles trail running + 70 ft ascent
- Sun 10 May
- £15-£35
The Spring Lucky Dip Run
Come and join the Spring Lucky Dip Run! There is no set medal for this race; instead, you will get to choose your own from a selection of medals from past events!
- Trail run
- 5K run
- 10K run
- Half marathon
- Marathon
- + 3 more races
- 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
Run Rabbit Trail Festival | Thump Trail Half Marathon
Join a friendly, well-organised, morning trail half marathon as a standalone event, or enter all three weekend events to complete 'The Quest'!
- 21.1 km trail running
- 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
- £35-£36
The Shindig in the Shire | Half Marathon
Push your limits on a historic trail run through Ironbridge Gorge with scenic views, testing climbs, and a rewarding finish with great food, drink, and well-earned bling.
- 13.1 miles trail running
- 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