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Flat 5K runs in UK

Find flat 5k 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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More than just a running race. Join thousands at Bedfordshire’s most popular weekend of running with festival magic, live music, bar, yoga, kids zone, street food, outdoor cinema and fun fair!
  • Sat 5 Sep 2026
  • £18-£20
Bedford, Bedfordshire, UK

Bedford 5K

More than just a running race. Join thousands at Bedfordshire’s most popular weekend of running with festival magic, live music, bar, yoga, kids zone, street food, outdoor cinema and fun fair!

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 11 & over
  • 5 km road running + 33 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 27 Sep 2026
  • £37.50-£39.50
Bournemouth, Dorset, UK

SoBo Series | Volume 4 | Stop me (if you think you've heard this one before)

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
  • Public transport links
  • Age 18 & over
  • 7 hrs road running + 0 ft ascent
This welcoming 5K for runners of all abilities follows a flat route by the scenic River Ness, as part of the awe-inspiring Loch Ness Marathon festival weekend.
  • Sun 27 Sep 2026
  • £18
Inverness, Highland, UK

River Ness 5K

This welcoming 5K for runners of all abilities follows a flat route by the scenic River Ness, as part of the awe-inspiring Loch Ness Marathon festival weekend.

  • Enter online
  • Flat
  • Traffic free
  • Age 1 & over
  • 5 km road running
Open to all the family from serious athletes wanting a shorter race to complete beginners wanting to have fun, get fit and raise money for Anna's Hope, or a different charity cause.
  • Sun 11 Oct 2026
  • £19.90
Peterborough, Cambridgeshire, UK

Anna's Hope 5K Fun Run

Open to all the family from serious athletes wanting a shorter race to complete beginners wanting to have fun, get fit and raise money for Anna's Hope, or a different charity cause.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Traffic free
  • Age 4 & over
  • 5 km road running
Enjoy stunning coastal views on this flexible-distance run at Milford on Sea, following an out-and-back route beside Sturt Pond and the Isle of Wight — perfect for all abilities.
  • Sun 25 Oct 2026
  • £37.50-£39.50
Lymington, Hampshire, UK

Wight Lines

Enjoy stunning coastal views on this flexible-distance run at Milford on Sea, following an out-and-back route beside Sturt Pond and the Isle of Wight — perfect for all abilities.

  • Beginner-friendly
  • Enter online
  • Flat
  • Event village
  • Coast
  • Public transport links
  • Age 18 & over
  • 7 hrs trail running + 47 ft ascent
Join ATW for the 5K Remembrance Run at The Carver Barracks, (Formerly Debden Airfield), in Essex to help honour our fallen heroes and raise money for this fantastic military charity.
  • Sat 7 Nov 2026
  • £16-£18
Saffron Walden, Essex, UK

ATW Remembrance Runs | 5K

Join ATW for the 5K Remembrance Run at The Carver Barracks, (Formerly Debden Airfield), in Essex to help honour our fallen heroes and raise money for this fantastic military charity.

  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Age 11 & over
  • 5 km road running + 46 ft ascent
Experience a dazzling 5K across the iconic Forth Road Bridge, moving at your own pace through vibrant light features in an accessible, unforgettable night-time challenge.
  • Sat 7 Nov 2026
  • £39.75
South Queensferry, Edinburgh, UK

Supernova Forth Road Bridge 5K

Experience a dazzling 5K across the iconic Forth Road Bridge, moving at your own pace through vibrant light features in an accessible, unforgettable night-time challenge.

  • Beginner-friendly
  • Chip timing
  • Enter online
  • Flat
  • Traffic free
  • Fancy dress
  • Event village
  • Urban
  • Age 12 & over
  • 5 km road running + 113 m ascent
Your chance to remember those who have given the ultimate sacrifice during conflicts around the world, with a two-minute silence, 5K run, then a Remembrance medal and goody bag at the finish.
  • Sun 8 Nov 2026
  • £25-£34
Egham, Surrey, UK

Remembrance Day Run | South | 5K

Your chance to remember those who have given the ultimate sacrifice during conflicts around the world, with a two-minute silence, 5K run, then a Remembrance medal and goody bag at the finish.

  • Enter online
  • Flat
  • Age 12 & over
  • 5 km trail running + 0 ft ascent
  • Sat 13 Dec
North Berwick, East Lothian, UK

Fox Trail Winter Running Series | Race 2 | 5K

  • 5 km trail running
  • Sun 14 Dec
Camberley, Surrey, UK

Jingle Jog | 5K

  • 5 km multi terrain running
  • Tue 16 Dec
Edinburgh, UK

Blast 5K - The Meadows 2025 Series

  • 5 km road running
  • Sat 20 Dec
Tavistock, Devon, UK

Tavy 5

  • 5 km road running
  • Sun 18 Jan 2026
Carlisle, Cumbria, UK

Carlisle Resolution 5K & 10K | 5K

  • 5 km road running
  • Sun 1 Feb 2026
Cardiff, UK

The Cardiff 5K, 10K and Half Marathon Winter Warmer Run | 5K

  • 5 km road running
  • Sat 7 Feb 2026
Newcastle upon Tyne, Tyne and Wear, UK

The Newcastle 5K, 10K and Half Marathon Winter Warmer Run | 5K

  • 5 km road running + 23 m ascent
  • Sun 8 Feb 2026
Glasgow, Glasgow City, UK

The Glasgow 5K, 10K and Half Marathon Winter Warmer Run | 5K

  • 5 km road running
  • Sun 22 Feb 2026
York, North Yorkshire, UK

The York 5K, 10K and Half Marathon Winter Warmer Run | 5K

  • 5 km trail running + 6 m ascent
  • Sat 28 Feb 2026
Liverpool, Merseyside, UK

The Liverpool 5K, 10K and Half Marathon Winter Warmer Run | 5K

  • 5 km road running + 18 m ascent
  • Sun 1 Mar 2026
Cardiff, UK

St Davids Day Run | 5K

  • 5 km road running
  • Sun 15 Mar 2026
Milton Keynes, Buckinghamshire, UK

Milton Keynes Festival of Running | 5K

  • 5 km road running
  • Sun 15 Mar 2026
Birchington, Kent, UK

Smugglers Run 10K & 5K | 5K

  • 5 km road running
  • Sun 22 Mar 2026
Herne Bay, Kent, UK

Run Whitstable & Herne Bay Spring 5K, 10K and Half Marathon | 5K

  • 5 km road running
  • Sun 12 Apr 2026
Boston, Lincolnshire, UK

Boston UK Marathon | 5K Fun Run

  • 5 km road running
  • Sun 19 Apr 2026
Cambridge, Cambridgeshire, UK

Northstowe Half & Toms Trust 5K | Toms Trust 5K

  • 5 km multi terrain running
  • Sat 9 May 2026
Windsor, Buckinghamshire, UK

The All Nations 5K, 10K and Half Marathon Run | 5K

  • 5 km road running

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