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Ultra runs in South East

Find ultra runs in South East 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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Select an event for photos, video, route, location, reviews, entry fees and how to enter.

Come and join The Flying Fox event! Are you as cunning and as quick as a fox and fancy showcasing your running skills?
  • Sat 21 Mar 2026
  • £16-£35
Staines, Surrey, UK

The Flying Fox

Come and join The Flying Fox event! Are you as cunning and as quick as a fox and fancy showcasing your running skills?

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with like-minded runners.
  • Sat 21 Mar 2026
  • £33-£35
Staines, Surrey, UK

London Marathon Long Training Run | Day 3

Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with like-minded runners.

  • Beginner-friendly
  • Enter online
  • Flat
  • Traffic free
  • Fancy dress
  • Event village
  • Age 17 & over
  • 7 hrs trail running
Come and join in for Dashing Dog Charity run along the picturesque River Thames, not only is the scenery beautiful and you will earn one of the awesome medals!
  • Sun 22 Mar 2026
  • £18-£40
Staines, Surrey, UK

The Dashing Dog Charity Run

Come and join in for Dashing Dog Charity run along the picturesque River Thames, not only is the scenery beautiful and you will earn one of the awesome medals!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
"My milkshake brings all the boys to the yard"... not quite sure where we're going with this but come and join this fantasic Milkshake Meander event!
  • Sat 28 Mar 2026
  • £16-£35
Staines, Surrey, UK

Milkshake Meander

"My milkshake brings all the boys to the yard"... not quite sure where we're going with this but come and join this fantasic Milkshake Meander event!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
10 Hours • 10 Laps • You vs You. You will be awarded an event medal and coloured finisher's shirt based on your ability to complete 10 laps of the 3-mile, 4-mile or 5-mile loops in the given time.
  • Sat 28 Mar 2026
  • £85
Uckfield, East Sussex, UK

Fortitude Ultra | Pippingford

10 Hours • 10 Laps • You vs You. You will be awarded an event medal and coloured finisher's shirt based on your ability to complete 10 laps of the 3-mile, 4-mile or 5-mile loops in the given time.

  • Beginner-friendly
  • Chip timing
  • Enter online
  • Hilly
  • Traffic free
  • Event village
  • Park
  • Age 20 & over
  • 10 hrs trail running
Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with likeminded runners.
  • Sat 28 Mar 2026
  • £33-£35
Staines, Surrey, UK

London Marathon Long Training Run | Day 4

Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with likeminded runners.

  • Beginner-friendly
  • Enter online
  • Traffic free
  • Fancy dress
  • Event village
  • Age 17 & over
  • 7 hrs trail running
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques and kit.
  • Sun 29 Mar 2026
  • £26-£37.50
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races | Mar | 40 Mile Ultra Marathon

A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques and kit.

  • Enter online
  • Hilly
  • Age 16 & over
  • 40 miles multi terrain running
The Eggcellent Easter Orange Run is the first event in the five-day series where you can earn the fantastic easter egg medal in orange! Complete one day, or complete all five!
  • Thu 2 Apr 2026
  • £16-£135
Egham, Surrey, UK

Eggcellent Easter Orange Run

The Eggcellent Easter Orange Run is the first event in the five-day series where you can earn the fantastic easter egg medal in orange! Complete one day, or complete all five!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 4 more races
The Eggcellent Easter Pink Run is the second event in the five-day series where you can earn the fantastic easter egg medal in pink!
  • Fri 3 Apr 2026
  • £16-£35
Egham, Surrey, UK

Eggcellent Easter Pink Run

The Eggcellent Easter Pink Run is the second event in the five-day series where you can earn the fantastic easter egg medal in pink!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
The Eggcellent Easter Green Run is the third event in the five-day series where you can earn the fantastic easter egg medal in green!
  • Sat 4 Apr 2026
  • £16-£35
Staines, Surrey, UK

Eggcellent Easter Green Run

The Eggcellent Easter Green Run is the third event in the five-day series where you can earn the fantastic easter egg medal in green!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with likeminded runners.
  • Sat 4 Apr 2026
  • £33-£35
Staines, Surrey, UK

London Marathon Long Training Run | Day 5

Build marathon confidence on a fully supported long run, choosing your distance, fuelling every lap and training smart in a relaxed, friendly environment with likeminded runners.

  • Beginner-friendly
  • Enter online
  • Flat
  • Traffic free
  • Fancy dress
  • Event village
  • Age 17 & over
  • 7 hrs trail running
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
  • £16-£35
Staines, Surrey, UK

Eggcellent Easter Purple Run

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!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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
  • £16-£35
Staines, Surrey, UK

Eggcellent Easter Blue Run

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!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Whether you are in the love it or hate it camp, I think we can all agree that the medal is super cute and definitely one which you need to add to your collection!
  • Sat 11 Apr 2026
  • £16-£35
Staines, Surrey, UK

Love it or Hate it Run

Whether you are in the love it or hate it camp, I think we can all agree that the medal is super cute and definitely one which you need to add to your collection!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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?
  • Sat 18 Apr 2026
  • £16-£35
Staines, Surrey, UK

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?

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Take on this legendary 250-mile ultra following rivers and canals in a gruelling anti-clockwise loop through stunning countryside and historic towns within 100 hours.
  • Wed 22 - Sun 26 Apr 2026
  • £100-£350
  • Early bird
Reading, Berkshire, UK

Thames Ring Series

Take on this legendary 250-mile ultra following rivers and canals in a gruelling anti-clockwise loop through stunning countryside and historic towns within 100 hours.

Early bird on now

  • Beginner-friendly
  • Event village
  • Urban
  • Rural
  • Age 18 & over
  • Ultra run 3
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
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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 2026
  • £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 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?
  • 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?

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Who remembers the character Strawberry Shortcake and all her adorable friends like Orange Blossom and Lemon Meringue?! Here's your chance for a medal of her!
  • Sat 6 Jun 2026
  • £15-£35
Staines, Surrey, UK

Strawberry Shortcake Scamper

Who remembers the character Strawberry Shortcake and all her adorable friends like Orange Blossom and Lemon Meringue?! Here's your chance for a medal of her!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
The UK’s favourite 24-hour trail race! 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?
  • Sat 6 - Sun 7 Jun 2026
  • £95-£105
  • 1 charity
  • Team & charity places only
Reading, Berkshire, UK

Endure24 | Reading

The UK’s favourite 24-hour trail race! 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?

Team & charity places only

  • Dogs allowed at venue
  • Entertainment
  • Music
  • Ballot
  • Chip timing
  • Enter online
  • Event village
  • Event expo
  • Park
  • Free venue entry
  • Sustainability policy
  • Relay
  • Age 18 & over
  • 24 hrs multi terrain running
Come and join the Summer 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 7 Jun 2026
  • £16-£35
Staines, Surrey, UK

The Summer Lucky Dip Run

Come and join the Summer 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!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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
Come and celebrate the 40th anniversary of the iconic film released in 1986! A cult classic from the 80s, one of Charlotte's favourite films, and who doesn't love David Bowie as the Goblin King!
  • Sun 14 Jun 2026
  • £16-£35
Staines, Surrey, UK

Labyrinth 40th Anniversary Run

Come and celebrate the 40th anniversary of the iconic film released in 1986! A cult classic from the 80s, one of Charlotte's favourite films, and who doesn't love David Bowie as the Goblin King!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
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
  • £60-£175
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
  • Beginner-friendly
  • Entertainment
  • Music
  • Event village
  • Park
  • Rural
  • Free venue entry
  • Sustainability policy
  • Public transport links
  • Age 18 & over
  • 50K ultra run 2
  • 100K ultra run
  • Trail run
  • Ultra run

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