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Ultra runs in UK in May 2026

Find ultra 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.

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
  • £16-£27
Egham, Surrey, UK

Midweek Chasing Numbers May

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.

  • Families
  • Newcomers
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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 2026
  • £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?

  • Newcomers
  • Chip timing
  • Enter online
  • Flat
  • Event village
  • Rural
  • Coast
  • Plastic-free event
  • Age 20 & over
  • 1 day multi terrain running + 323 ft ascent
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 2026
  • £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
  • Newcomers
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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 2026
  • £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.

  • Newcomers
  • Chip timing
  • Enter online
  • GPS tracking
  • Event village
  • Rural
  • Age 18 & over
  • 24 hrs trail running + 8561 ft ascent
Come and join in for 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 2026
  • £16-£35
Staines, Surrey, UK

The Spring Lucky Dip Run

Come and join in for 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!

  • Newcomers
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
The circular 35 mile ultra is a registered UTMB index race with 20.2 miles of cross country trails and 14.3 miles on road through wonderful countryside. Fully tracked and interactive
  • Sun 10 May 2026
  • £60
Naseby, Northamptonshire, UK

Shires and Spires | Ultra

The circular 35 mile ultra is a registered UTMB index race with 20.2 miles of cross country trails and 14.3 miles on road through wonderful countryside. Fully tracked and interactive

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 35 miles multi terrain running + 2052 ft ascent
Walk, jog or run along the spectacular UNESCO World Heritage coastline from Corfe Castle past Lulworth Cove and Durdle Door, with full support, welcoming base camp and finish line celebration!
  • Sat 16 - Sun 17 May 2026
  • £39-£199
Wareham, Dorset, UK

Jurassic Coast Ultra Challenge

Walk, jog or run along the spectacular UNESCO World Heritage coastline from Corfe Castle past Lulworth Cove and Durdle Door, with full support, welcoming base camp and finish line celebration!

  • Families
  • Newcomers
  • Entertainment
  • Music
  • Event village
  • Rural
  • Coast
  • Age 14 & over
  • Trail run 2
  • 50K ultra run 2
  • 100K ultra run 2
  • Marathon
  • Ultra run
  • + 1 more race
Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run with us??
  • Sat 16 May 2026
  • £16-£35
Staines, Surrey, UK

Rocky at 50 Run

Come and celebrate 50 years since the release of the iconic Rocky film! Have you got the Eye of The Tiger, the guts to get the glory and the will to rise up to the challenge and run with us??

  • Families
  • Newcomers
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
  • Sun 17 May 2026
Keswick, Cumbria, UK

Keswick Mountain Festival | adidas TERREX 50K Trail Ultra Marathon

  • 50 km trail running + 1800 m ascent
Set along the beachfront promenade at Southbourne (SoBo), choose your own distance from 5K to ultra, along this flat, tarmacked, lapped route suitable for all abilities.
  • Sun 17 May 2026
  • £37.50-£39.50
Bournemouth, Dorset, UK

SoBo Series | Volume 3 | Good Vibrations

Set along the beachfront promenade at Southbourne (SoBo), choose your own distance from 5K to ultra, along this flat, tarmacked, lapped route suitable for all abilities.

  • Newcomers
  • Enter online
  • Flat
  • Traffic free
  • Event village
  • Coast
  • Age 18 & over
  • 7 hrs road running + 0 ft ascent
Zig Zag Running is 6 years old this month so why not come along and celebrate?! You are promised lots of cake!
  • Sun 17 May 2026
  • £31-£38
Dereham, Norfolk, UK

The Birthday Run | Ultra Marathon

Zig Zag Running is 6 years old this month so why not come along and celebrate?! You are promised lots of cake!

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 18 & over
  • 40 miles multi terrain running + 62 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 is the run for you! Themed medal too!
  • Thu 21 May 2026
  • £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
  • Newcomers
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 4 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.
  • Fri 22 May 2026
  • £16-£36
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
  • Newcomers
  • 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 2026
  • £16-£36
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
  • Newcomers
  • 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 2026
  • £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.

  • Newcomers
  • 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 2026
  • £16-£36
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
  • Newcomers
  • 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.
  • Mon 25 May 2026
  • £16-£36
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
  • Newcomers
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Come and join Saturn Too for our May Midweek Medal Madness event, where we will also be celebrating Leon's Birthday!!!
  • Fri 29 May 2026
  • £16-£27
Staines, Surrey, UK

Midweek Medal Madness - Leons Birthday Run

Come and join Saturn Too for our May Midweek Medal Madness event, where we will also be celebrating Leon's Birthday!!!

  • Families
  • Newcomers
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Come and celebrate 50 years since the release of the iconic Rocky film at the incredible location in Dare Valley Park in Wales!
  • Sat 30 May 2026
  • FREE-£35
Aberdare, Mid Glamorgan, UK

Rocky at 50 Run - Wales

Come and celebrate 50 years since the release of the iconic Rocky film at the incredible location in Dare Valley Park in Wales!

  • Families
  • Newcomers
  • Event village
  • Park
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Taking in the two Munro summits of Cairn a Chlamain and Ben Dearg along with Glen Tilt and the vast forests of Blairuachdair, the Full Tilt Ultra has it all. Are you up to the challenge?
  • Sat 30 May 2026
  • £79
Pitlochry, Perth and Kinross, UK

Blair Castle Trail Weekender | Full Tilt Ultra 58K

Taking in the two Munro summits of Cairn a Chlamain and Ben Dearg along with Glen Tilt and the vast forests of Blairuachdair, the Full Tilt Ultra has it all. Are you up to the challenge?

  • Chip timing
  • Enter online
  • Mountainous
  • Traffic free
  • Age 18 & over
  • 58 km trail running + 2026 m ascent
In its sixth year! Come take on the challenge of the track at Wodson Park. Do you have it in you to complete your distance on a 400-metre athletics track?
  • Sun 31 May 2026
  • £27-£38
Ware, Hertfordshire, UK

Circuit Du Sore Legs

In its sixth year! Come take on the challenge of the track at Wodson Park. Do you have it in you to complete your distance on a 400-metre athletics track?

  • Families
  • Newcomers
  • Event village
  • Park
  • Age 14 & over
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • 50K ultra run
  • + 1 more race
  • Sun 3 May 2026
Shipston-on-Stour, Warwickshire, UK

Tempo Trail Races

  • 10K run
  • Half marathon
  • Marathon
  • Ultra run 2
  • Fri 8 May 2026
Preston, Lancashire, UK

Brockholes Bimble | Ultra

  • 6 hrs trail running
  • Sat 9 - Sun 10 May 2026
Reading, Berkshire, UK

Goring Gap Trails

  • Ultra run 2
  • Long distance walk
  • Short walk 2
  • Half marathon
  • Sat 9 May 2026
Chesham, Buckinghamshire, UK

Chiltern Hills 100K

  • 100 km trail running

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