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Flat 5K runs in UK in May 2026

Find flat 5k runs in UK in May 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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Shoot for the stars on the rapid Rocket Run! Join this fast rocket-fueled 5K with an 'out of this world' bling on a fast and flat point-to-point course from central Milton Keynes to Stadium MK.
  • Sun 3 May 2026
  • £18-£28
Milton Keynes, Buckinghamshire, UK

MK Marathon Weekend | Rocket 5K

Shoot for the stars on the rapid Rocket Run! Join this fast rocket-fueled 5K with an 'out of this world' bling on a fast and flat point-to-point course from central Milton Keynes to Stadium MK.

  • Chip timing
  • Enter online
  • Flat
  • Undulating
  • PB
  • Traffic free
  • Age 12 & over
  • 5 km road running + 89 ft ascent
Come and join the day of running and aim to complete a 5K at your own pace 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 | 5K

Come and join the day of running and aim to complete a 5K at your own pace on a scenic course then receive a fantastic medal and goody bag at the finish!

  • Enter online
  • Flat
  • Age 12 & over
  • 5 km trail running + 0 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
Based out of East Hull this 5K race 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
  • £14-£16
Hull, East Yorkshire, UK

Get the Hull out of Here | 5K

Based out of East Hull this 5K race 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 16 & over
  • 5 km trail running + 0 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
  • £27-£29
Ware, Hertfordshire, UK

Circuit Du Sore Legs | 5K

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 14 & over
  • 5 km track and field
  • Sat 9 May 2026
Windsor, Buckinghamshire, UK

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

  • 5 km road running
  • Sun 10 May 2026
Hereford, Herefordshire, UK

RUN Hereford | 5K

  • 5 km road running + 15 m ascent
  • Sat 16 May 2026
London, UK

Hackney Moves | Hackney 5K

  • 5 km road running

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