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Flat Ultra runs in UK in Summer

Find flat ultra runs in UK in Summer - filter by date, location or category, display on a map or use the advanced search to find your perfect race.

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Push your limits at the highly competitive Summer Suffolk Backyard Ultra — run 4.167 miles every hour, on the hour, until only one runner remains standing.
  • Sat 6 Jun 2026
  • £80-£130
Brandon, Suffolk, UK

Suffolk Back Yard Ultra Festival

Push your limits at the highly competitive Summer Suffolk Backyard Ultra — run 4.167 miles every hour, on the hour, until only one runner remains standing.

  • Families
  • Beginner-friendly
  • Event village
  • Age 12 & over
  • Fixed time runs 2
  • Ultra run
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
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
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
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
  • £16-£29
Durham, County Durham, UK

Lord of The Run | North

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!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
A run that you don't want to miss! The medal is incredible, and you can celebrate your achievements with some well-deserved ice cream!
  • Sun 5 Jul 2026
  • £16-£35
Staines, Surrey, UK

Will Run For Ice Cream

A run that you don't want to miss! The medal is incredible, and you can celebrate your achievements with some well-deserved ice cream!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!
  • Sat 11 Jul 2026
  • £16-£35
Staines, Surrey, UK

Ooops I Ran It Again

Who hasn't completed a race, sworn they will never run again and then booked onto another one the following day?!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Runners will trail along the tranquil Leeds to Liverpool Canal (Kirkstall) on an entirely flat route, making it perfect for beginners who want to take in the beautiful lakeside sights.
  • Sat 11 Jul 2026
  • £54-£56
Leeds, West Yorkshire, UK

It's cracking t'flags at Summer Extravaganza | Ultra Marathon

Runners will trail along the tranquil Leeds to Liverpool Canal (Kirkstall) on an entirely flat route, making it perfect for beginners who want to take in the beautiful lakeside sights.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 21 & over
  • 32 miles trail running
The ATW Odyssey 12hr Run is more than just a running event, its a journey of self-discovery through the beautiful multi-terrain footpaths around St Neots.
  • Sat 8 Aug 2026
  • £56-£93
St. Neots, Cambridgeshire, UK

ATW Odyssey12

The ATW Odyssey 12hr Run is more than just a running event, its a journey of self-discovery through the beautiful multi-terrain footpaths around St Neots.

  • Recycling
  • Beginner-friendly
  • Music
  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Event village
  • Park
  • Sustainability policy
  • Relay
  • Age 18 & over
  • 12 hrs trail running
Who doesn't like cake?! The Great British Bake Run is back for another year! The medal is a fantastic cupcake which doubles up as a magnet to go on your fridge!
  • Sun 9 Aug 2026
  • £16-£35
Staines, Surrey, UK

Great British Bake Run

Who doesn't like cake?! The Great British Bake Run is back for another year! The medal is a fantastic cupcake which doubles up as a magnet to go on your fridge!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Road run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races
Enjoy a trip up the Leeds and Liverpool Canal this summer over a range of distances, all along the flat and even towpath. This event is perfect for runners of all abilities.
  • Sat 15 Aug 2026
  • £54-£56
Shipley, West Yorkshire, UK

Sir Titus Summer Trot | Ultra Marathon

Enjoy a trip up the Leeds and Liverpool Canal this summer over a range of distances, all along the flat and even towpath. This event is perfect for runners of all abilities.

  • Chip timing
  • Enter online
  • Flat
  • Age 21 & over
  • 50 km trail running
Whether you're looking to get some miles under your belt before The Great North Run or you just fancy a run along the beautiful River Wear, then this is the event for you!
  • Sun 30 Aug 2026
  • £16-£29
Durham, County Durham, UK

GNR & Time Turner

Whether you're looking to get some miles under your belt before The Great North Run or you just fancy a run along the beautiful River Wear, then this is the event for you!

  • Families
  • Beginner-friendly
  • Event village
  • All ages
  • Trail run
  • 5K run
  • 10K run
  • Half marathon
  • Marathon
  • + 3 more races

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