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Flat Marathons in UK in Spring

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

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Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.
  • Sun 8 Mar 2026
  • £53-£55
London, UK

Thames Meander Spring | Marathon

Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.

  • Chip timing
  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running + 600 ft ascent
Fast, flat, PB-grabbing event on traffic-free trails and the canal towpath with a bespoke medal and treats at the finish line. All levels of runner welcome.
  • Sat 14 Mar 2026
  • £40-£42
Leeds, West Yorkshire, UK

Spring Time Canal Canter | Marathon

Fast, flat, PB-grabbing event on traffic-free trails and the canal towpath with a bespoke medal and treats at the finish line. All levels of runner welcome.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 18 & over
  • 26.2 miles trail running + 299 ft ascent
Spring along the Leeds and Liverpool Canal with the Spring Tide Sir Titus Trot along the flat, even towpath. Perfect for all abilities, it tends to sell out very quickly.
  • Sun 29 Mar 2026
  • £40-£42
Shipley, West Yorkshire, UK

Sir Titus March Mayhem | Marathon

Spring along the Leeds and Liverpool Canal with the Spring Tide Sir Titus Trot along the flat, even towpath. Perfect for all abilities, it tends to sell out very quickly.

  • Chip timing
  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running + 276 ft ascent
A delectable racing experience perfect for those planning a spring marathon, over a pancake flat course using the wide, quiet country lanes surrounding the marsh town of Lydd in Kent.
  • Sun 29 Mar 2026
  • £33
Romney Marsh, Kent, UK

Brett Lydd 20 Mile

A delectable racing experience perfect for those planning a spring marathon, over a pancake flat course using the wide, quiet country lanes surrounding the marsh town of Lydd in Kent.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 18 & over
  • 20 miles road running + 3 ft ascent
You'd be an April Fool to miss this one. Enjoy a trip up the flat and event towpath of the Leeds and Liverpool Canal from Rodley. One to warm the depths of your heart.
  • Sun 5 Apr 2026
  • £40-£42
Leeds, West Yorkshire, UK

Lets Motor along the Towpath | Rodley | Marathon

You'd be an April Fool to miss this one. Enjoy a trip up the flat and event towpath of the Leeds and Liverpool Canal from Rodley. One to warm the depths of your heart.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 18 & over
  • 26.2 miles trail running + 381 ft ascent
Experience the UK’s friendliest and flattest major marathon with huge crowd support on a route with PB potential plus chunky medals and relay options.
  • Sun 19 Apr 2026
  • £30
  • 4 charities
Manchester, Greater Manchester, UK

adidas Manchester Marathon

Experience the UK’s friendliest and flattest major marathon with huge crowd support on a route with PB potential plus chunky medals and relay options.

  • Trees not tees
  • Venue accessible
  • Recycling
  • Beginner-friendly
  • Entertainment
  • Chip timing
  • Flat
  • PB
  • Traffic free
  • Fancy dress
  • Urban
  • Sustainability policy
  • Relay
  • Age 18 & over
  • 26.2 miles road running
Come and join the day of running and aim to complete a midweek marathon within the 7-hour time limit on a scenic course then receive a fantastic medal and goody bag at the finish!
  • Mon 4 May 2026
  • £20-£27
Staines, Surrey, UK

Bank Holiday Madness May | Marathon

Come and join the day of running and aim to complete a midweek marathon within the 7-hour time limit on a scenic course then receive a fantastic medal and goody bag at the finish!

  • Enter online
  • Flat
  • Traffic free
  • Age 18 & over
  • 26.2 miles trail running + 0 ft ascent
A multi award-winning marathon consistently ranked in the top 10 UK marathons with a stadium finish to give you goosebumps! AIMS-certified and BARR Gold accreditation for outstanding race management.
  • Mon 4 May 2026
  • £50-£60
Milton Keynes, Buckinghamshire, UK

MK Marathon

A multi award-winning marathon consistently ranked in the top 10 UK marathons with a stadium finish to give you goosebumps! AIMS-certified and BARR Gold accreditation for outstanding race management.

  • Chip timing
  • Enter online
  • GPS tracking
  • Flat
  • PB
  • Traffic free
  • Relay
  • Age 18 & over
  • 26.2 miles road running + 938 ft 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.

  • Beginner-friendly
  • Enter online
  • Flat
  • Traffic free
  • Event village
  • Coast
  • Age 18 & over
  • 7 hrs road running + 0 ft ascent
Experience Edinburgh's festival of running on Bank Holiday weekend! With nine distances on offer there's something for everyone - come and smash your PB at the marathon, previously voted UK's fastest!
  • Sat 23 - Sun 24 May 2026
  • FREE-£176
Edinburgh, UK

Edinburgh Marathon Festival

Experience Edinburgh's festival of running on Bank Holiday weekend! With nine distances on offer there's something for everyone - come and smash your PB at the marathon, previously voted UK's fastest!

  • Families
  • Venue accessible
  • Recycling
  • Beginner-friendly
  • Fancy dress
  • Event village
  • Urban
  • Park
  • Rural
  • Coast
  • Sustainability policy
  • Public transport links
  • Age 3 & over
  • Marathon 2
  • Half marathon
  • 10K run
  • 5K run
  • Fun run 4
Based out of East Hull this marathon 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 2026
  • £40-£42
Hull, East Yorkshire, UK

Get the Hull out of Here | Marathon

Based out of East Hull this marathon 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.

  • Enter online
  • Flat
  • PB
  • Age 18 & over
  • 26.2 miles trail running + 66 ft 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
  • £36-£38
Ware, Hertfordshire, UK

Circuit Du Sore Legs | Full Marathon

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?

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 18 & over
  • 26.2 miles track and field
  • Sun 8 Mar 2026
Burry Port, Dyfed, UK

Great Welsh Marathon Events | Full Marathon

  • 26.2 miles road running + 363 ft ascent
  • Sun 22 Mar 2026
Tiverton, Devon, UK

Grand Canal Canter | Marathon

  • 26.2 miles trail running + 180 ft ascent
  • Sun 12 Apr 2026
Boston, Lincolnshire, UK

Boston UK Marathon | Marathon

  • 26.2 miles road running
  • Sun 26 Apr 2026
Stratford-upon-Avon, Warwickshire, UK

Shakespeare Marathon & Half Marathon | Full Marathon

  • 26.2 miles road running + 188 m ascent

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