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50K ultra runs in UK

Find 50k ultra runs 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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The Eggcellent Easter Purple Run is the fourth event in the five day series where you can earn the fantastic easter egg medal, this time in purple!
  • Sun 5 Apr 2026
  • £23-£35
Staines, Surrey, UK

Eggcellent Easter Purple Run | 50K

The Eggcellent Easter Purple Run is the fourth event in the five day series where you can earn the fantastic easter egg medal, this time in purple!

  • Enter online
  • Age 20 & over
  • 50 km trail running + 0 ft ascent
The Eggcellent Easter Blue Run is the fifth and final event in the five day series where you can earn the fantastic easter egg medal, this time in blue!
  • Mon 6 Apr 2026
  • £23-£35
Staines, Surrey, UK

Eggcellent Easter Blue Run | 50K

The Eggcellent Easter Blue Run is the fifth and final event in the five day series where you can earn the fantastic easter egg medal, this time in blue!

  • Enter online
  • Age 20 & over
  • 50 km trail running + 0 ft ascent
Come and get involved in this Love it or Hate it Run!
  • Sat 11 Apr 2026
  • £23-£35
Staines, Surrey, UK

Love it or Hate it Run | 50K

Come and get involved in this Love it or Hate it Run!

  • Enter online
  • Age 20 & over
  • 50 km 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 17 Apr 2026
  • £20-£27
Staines, Surrey, UK

Midweek Medal Madness Run | 50K

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 20 & over
  • 50 km 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 | 50K

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 20 & over
  • 50 km trail running + 0 ft ascent
This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.
  • Sat 25 Apr 2026
  • £52.50
Prestatyn, Clwyd, UK

North Wales 50K

This event gives participants the opportunity to take in a runnable, beautiful route which follows the North Walian coastline between Prestatyn and Bangor.

  • Chip timing
  • Enter online
  • GPS tracking
  • Age 18 & over
  • 50 km trail running + 2700 ft ascent
Set in the heart of the West Yorkshire moors, this 30-mile ultra is the perfect addition to the spring running calendar with its open moorland, woodland trails, canals and scenic views.
  • Sat 25 Apr 2026
  • £45-£50
Brighouse, West Yorkshire, UK

Calderdale Way Ultra | 30 Mile

Set in the heart of the West Yorkshire moors, this 30-mile ultra is the perfect addition to the spring running calendar with its open moorland, woodland trails, canals and scenic views.

  • Enter online
  • Hilly
  • Age 18 & over
  • 30 miles trail running + 4708 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 | 50K

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

  • Enter online
  • Age 20 & over
  • 50 km 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 | 50K

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 20 & over
  • 50 km trail running + 0 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 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
The ultra is graded ‘very hard’ and one to get into your ultra running calendar if you’re looking for UTMB index runs where you can bag points. Includes Full Weekend Festival Ticket in the price!
  • Sun 17 May 2026
  • £80-£85
Keswick, Cumbria, UK

Keswick Mountain Festival | adidas TERREX 50K Trail Ultra Marathon

The ultra is graded ‘very hard’ and one to get into your ultra running calendar if you’re looking for UTMB index runs where you can bag points. Includes Full Weekend Festival Ticket in the price!

  • Newcomers
  • Music
  • Chip timing
  • Enter online
  • Mountainous
  • Event village
  • Age 18 & over
  • 50 km trail running + 1800 m 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 looped 50K is for you! Durham-themed medals too.
  • Fri 22 May 2026
  • £17-£36
Durham, County Durham, UK

Dun Holm Challenge - Day 2 | 50K

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 50K is for you! Durham-themed medals too.

  • Enter online
  • Undulating
  • Age 20 & over
  • 50 km 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 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? Run an ultra over a fantastic 5.3K loop 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 | Ultra Marathon

Can you survive Farmmageddon? Run an ultra over a fantastic 5.3K loop through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.

  • Enter online
  • Undulating
  • Traffic free
  • Age 18 & over
  • 32 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 50K is for you! Durham-themed medals too.
  • Sun 24 May 2026
  • £17-£36
Durham, County Durham, UK

Dun Holm Challenge | Day 4 | 50K

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 50K is for you! Durham-themed medals too.

  • Enter online
  • Undulating
  • Age 20 & over
  • 50 km 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 lapped 50K is for you! Durham-themed medals too.
  • Mon 25 May 2026
  • £17-£36
Durham, County Durham, UK

Dun Holm Challenge | Day 5 | 50K

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 lapped 50K is for you! Durham-themed medals too.

  • Enter online
  • Undulating
  • Age 20 & over
  • 50 km trail running + 72 ft ascent
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
A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.
  • Sat 6 Jun 2026
  • £53.50
Llangollen, Clwyd, UK

The Llangollen 50K

A truly beautiful area of North Wales! The route uses two way-marked 15-mile linear routes either side of the river, to create a spectacular, challenging excursion in and above the valley.

  • Newcomers
  • Enter online
  • Event village
  • Rural
  • Age 21 & over
  • 50 km trail running + 5435 ft ascent
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
  • £60-£62
Wadhurst, East Sussex, UK

Bewl Water Summer | Ultra

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 20-80
  • 50 km trail running + 1500 ft ascent
Take on a challenge fit for royalty in this epic ultramarathon along the South Downs Way and Monarch’s Way. Choose from two unique 50km loops – or tackle both in a non-stop 100km challenge!
  • Sat 20 Jun 2026
  • £55-£165
Chichester, West Sussex, UK

Race to the King

Take on a challenge fit for royalty in this epic ultramarathon along the South Downs Way and Monarch’s Way. Choose from two unique 50km loops – or tackle both in a non-stop 100km challenge!

  • Recycling
  • Newcomers
  • Entertainment
  • Music
  • Event village
  • Park
  • Rural
  • Free venue entry
  • Sustainability policy
  • Public transport links
  • Age 18 & over
  • 100K ultra run
  • 50K ultra run 2
  • Trail run
  • Ultra run
66th edition! The Perambulation is Exmoor National Park’s iconic traditional self-navigated circular long-distance event dating back over 725 years and now you can run the full distance!
  • Sat 20 Jun 2026
  • £32.50
Minehead, Somerset, UK

Exmoor Perambulation | Ultra Trail Marathon

66th edition! The Perambulation is Exmoor National Park’s iconic traditional self-navigated circular long-distance event dating back over 725 years and now you can run the full distance!

  • Enter online
  • Age 16 & over
  • 30 miles trail running
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 | 50K

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 20 & over
  • 50 km trail running
Conquer Britain's oldest trail, the ancient Ridgeway, as you race towards the 5000-year-old Avebury Standing Stones.
  • Sat 11 - Sun 12 Jul 2026
  • £85-£255
Watlington, Oxfordshire, UK

Race to the Stones

Conquer Britain's oldest trail, the ancient Ridgeway, as you race towards the 5000-year-old Avebury Standing Stones.

  • Families
  • Recycling
  • Newcomers
  • Event village
  • Rural
  • Sustainability policy
  • Public transport links
  • Age 18 & over
  • 50K ultra run 2
  • 100K ultra run 3

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