10

Trail Ultra runs in East of England in Summer

Find trail ultra runs in East of England 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
Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it over a lovely looped ultra trail route.
  • Sat 27 Jun 2026
  • £33-£35
Buntingford, Hertfordshire, UK

Cock-a-doodle Dawdle | Ultra Marathon

Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it over a lovely looped ultra trail route.

  • Enter online
  • Undulating
  • Age 18 & over
  • 32 miles trail running
Run, lap, repeat — from 5K to ultra-marathon across scenic trails at Bawsey Country Park, with friendly support, flexible distances and the freedom to run your own way.
  • Sun 12 Jul 2026
  • £27-£38
King's Lynn, Norfolk, UK

Norfolk Festival of Running

Run, lap, repeat — from 5K to ultra-marathon across scenic trails at Bawsey Country Park, with friendly support, flexible distances and the freedom to run your own way.

  • Families
  • Beginner-friendly
  • Event village
  • Park
  • Age 18 & over
  • Fixed time runs 2
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
Alongside the multisports, there’s a 12-hour endurance run where you can push your limits as an individual or join forces in a relay team. Run as far as you can in 12 hours and soak up the support.
  • Sat 8 Aug 2026
  • £56-£93
St. Neots, Cambridgeshire, UK

ATW First To Full Triathlon Festival | 12hr Solo

Alongside the multisports, there’s a 12-hour endurance run where you can push your limits as an individual or join forces in a relay team. Run as far as you can in 12 hours and soak up the support.

  • Chip timing
  • Enter online
  • PB
  • Relay
  • Age 20 & over
  • 12 hrs trail running
  • Fri 3 - Sat 4 Jul 2026
Epping, Essex, UK

The Full Essex Way Ultra

  • 82 miles trail running + 3469 ft ascent
  • Sun 19 Jul 2026
Stevenage, Hertfordshire, UK

Fairlands Valley Challenge | 50K Ultra

  • 50 km trail running

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