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Trail runs in UK in May 2026

Find trail runs in UK in May 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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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

4.167 miles on the hour, every hour, until the there is only one left standing. Have you got what it takes for just one more loop?
  • Fri 1 May
  • £100-£102
Portland, Dorset, UK

Portland Pig BackYard Ultra

4.167 miles on the hour, every hour, until the there is only one left standing. Have you got what it takes for just one more loop?

  • Beginner-friendly
  • Chip timing
  • Enter online
  • Flat
  • Event village
  • Rural
  • Coast
  • Plastic-free event
  • Age 20 & over
  • 1 day multi terrain running
This Bank Holiday event is run 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.
  • Mon 4 May
  • £16-£27
Staines, Surrey, UK

Bank Holiday Madness May

This Bank Holiday event is run 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.

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Come and join in at Kirkstall for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.
  • Thu 7 May
  • £10-£17
Leeds, West Yorkshire, UK

Kirkstall Rock up n' Run

Come and join in at Kirkstall for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.

  • Beginner-friendly
  • Event village
  • Age 16 & over
  • 5K run
  • 10K run
The Magna Carta event are based in scenic Runnymede and right near the site where the treaty of Magna Carta was agreed by King John of England and signed on 15th June 1215.
  • Sat 9 May
  • £33-£55
Egham, Surrey, UK

Magna Carta Summer

The Magna Carta event are based in scenic Runnymede and right near the site where the treaty of Magna Carta was agreed by King John of England and signed on 15th June 1215.

  • Beginner-friendly
  • Event village
  • Age 16 & over
  • 10K run
  • Half marathon
  • Marathon
The finish line is unique to you: 24 hours after the mass start, the race shall stop and the Solo Runners and Teams furthest South on the National Trail, shall be declared winners.
  • Sat 9 - Sun 10 May
  • £95.50-£155.50
Prestatyn, Clwyd, UK

24 Hours South | The Offa's Dyke Ultra

The finish line is unique to you: 24 hours after the mass start, the race shall stop and the Solo Runners and Teams furthest South on the National Trail, shall be declared winners.

  • Beginner-friendly
  • Chip timing
  • Enter online
  • GPS tracking
  • Event village
  • Rural
  • Age 18 & over
  • 24 hrs trail running + 8561 ft ascent
A selection of races with top reviews based in the village of Naseby famous for the Battle of Naseby in 1645. The ultra takes in Althorp, home of the Spencer family and Princess Diana's resting place.
  • Sun 10 May
  • £24-£60
Naseby, Northamptonshire, UK

Shires and Spires

A selection of races with top reviews based in the village of Naseby famous for the Battle of Naseby in 1645. The ultra takes in Althorp, home of the Spencer family and Princess Diana's resting place.

  • Beginner-friendly
  • Event village
  • Rural
  • Age 18 & over
  • 10K run
  • Half marathon
  • Marathon
  • Trail run
  • Ultra 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!
  • Sun 10 May
  • £16-£35
Staines, Surrey, UK

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!

  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Come and join in at Rodley for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.
  • Thu 14 May
  • £10-£17
Leeds, West Yorkshire, UK

Rodley - Rock up n' Run

Come and join in at Rodley for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.

  • Beginner-friendly
  • Event village
  • Age 16 & over
  • 5K run
  • 10K run
The UK's top outdoor sports festival! Incredible entertainment, sports events, speakers, live music, activities, brand expo, bars, food, drink and much more.
  • Fri 15 - Sun 17 May
  • £30
  • Early bird
Keswick, Cumbria, UK

Keswick Mountain Festival

The UK's top outdoor sports festival! Incredible entertainment, sports events, speakers, live music, activities, brand expo, bars, food, drink and much more.

Early bird on now

  • Families
  • Venue accessible
  • Beginner-friendly
  • Dogs allowed at venue
  • Entertainment
  • Music
  • Enter online
  • Event village
  • Event expo
  • Park
  • Rural
  • Mountains
  • Sustainability policy
  • All ages
  • 5K run 2
  • 10K run
  • Half marathon
  • 50K ultra run
  • Fell run
  • + 14 more races
By popular demand, a selection of trail races 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
  • £9-£28
Lifton, Devon, UK

Roadford Lake Trail Races

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

  • Families
  • Trees not tees
  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Rural
  • Sustainability policy
  • Age 3 & over
  • Fun run 2
  • 5K run
  • CaniCross 2
  • 10K run
  • 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 is the run for you! Themed medal too!
  • Thu 21 May
  • £16-£135
Durham, County Durham, UK

Dun Holm Challenge | Day 1

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 is the run for you! Themed medal too!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 4 more races
Come and join in at Saltaire for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.
  • Thu 21 May
  • £10-£17
Shipley, West Yorkshire, UK

Saltaire - Rock up n' Run

Come and join in at Saltaire for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.

  • Beginner-friendly
  • Event village
  • Age 16 & over
  • 5K run
  • 10K run
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 is the run for you! Durham-themed medal too.
  • Fri 22 May
  • £16-£29
Durham, County Durham, UK

Dun Holm Challenge - Day 2

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 is the run for you! Durham-themed medal too.

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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 is the run for you! Durham-themed medal too.
  • Sat 23 May
  • £16-£29
Durham, County Durham, UK

Dun Holm Challenge | Day 3

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 is the run for you! Durham-themed medal too.

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Can you survive Farmmageddon? You have 32 hours to complete 100 miles over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm. 24-hour or shorter distance options too.
  • Sat 23 - Sun 24 May
  • £33-£165
Buntingford, Hertfordshire, UK

Farmmageddon

Can you survive Farmmageddon? You have 32 hours to complete 100 miles over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm. 24-hour or shorter distance options too.

  • Beginner-friendly
  • Event village
  • Rural
  • Age 18 & over
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • Ultra run 2
  • + 2 more races
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 is the run for you! Durham-themed medal too.
  • Sun 24 May
  • £16-£29
Durham, County Durham, UK

Dun Holm Challenge | Day 4

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 is the run for you! Durham-themed medal too.

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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
  • £14-£42
Hull, East Yorkshire, UK

Get the Hull out of Here

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.

  • Beginner-friendly
  • Event village
  • Park
  • Age 16 & over
  • 5K run
  • 10K run
  • 10 miler
  • Half marathon
  • Trail run
  • + 1 more race
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 is the run for you! Durham-themed medal too.
  • Mon 25 May
  • £16-£29
Durham, County Durham, UK

Dun Holm Challenge | Day 5

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 is the run for you! Durham-themed medal too.

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Come and join in at Slaithwaite (Slawit) for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.
  • Thu 28 May
  • £10-£17
Slaithwaite, West Yorkshire, UK

Slawit - Rock up n' Run

Come and join in at Slaithwaite (Slawit) for this brilliant pop-up Summer Series. Jumble medal, beer or soft drink and sweetie bag for all runners.

  • Beginner-friendly
  • Event village
  • Age 16 & over
  • 5K run
  • 10K run
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.
  • Fri 29 - Sun 31 May
  • £10-£79
Pitlochry, Perth and Kinross, UK

Blair Castle Trail Weekender

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.

  • Families
  • Recycling
  • Beginner-friendly
  • Plastic bottle free
  • Entertainment
  • Music
  • Event village
  • Event expo
  • Park
  • Rural
  • Mountains
  • Sustainability policy
  • Public transport links
  • All ages
  • Ultra run
  • Trail run 4
  • Walking festival
  • Half marathon
50 years of Lake District running in one unforgettable weekend! Trail runners, fell runners, orienteers and walkers of all abilities in an iconic location with family-friendly activities and more.
  • Sat 30 - Sun 31 May
  • FREE-£85
Ambleside, Cumbria, UK

Lake District Running Festival

50 years of Lake District running in one unforgettable weekend! Trail runners, fell runners, orienteers and walkers of all abilities in an iconic location with family-friendly activities and more.

  • Families
  • Beginner-friendly
  • Event village
  • Rural
  • Mountains
  • Age 5 & over
  • Sprint orienteer
  • 5K run
  • 10K run
  • Trail run
  • Marathon
  • + 2 more races
  • Fri 1 May
Egham, Surrey, UK

Midweek Chasing Numbers May

  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
  • Sat 2 May
Llanidloes, Powys, UK

The HOWUM

  • 30 miles trail running + 4356 ft ascent
  • Sat 2 May
Guildford, Surrey, UK

Greensand Way Ultra Run

  • 30 miles trail running
  • Sat 2 - Mon 4 May
Keswick, Cumbria, UK

SCARPA Great Lakeland 3Day

  • 3 days fell running

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