Flat Ultra runs in East of England
Find flat ultra runs in East of England 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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- Sun 1 Feb 2026
- £60
Peddars Way Ultra
A 48-mile route through historical Suffolk and Norfolk, starting from Knettishall Heath Nature reserve and running north to Holme-next-the-Sea on the Norfolk Coast.
- Beginner-friendly
- Enter online
- GPS tracking
- Flat
- Event village
- Rural
- Age 18 & over
- 48 miles trail running + 1923 ft ascent
- Sun 31 May 2026
- £27-£38
Circuit Du Sore Legs
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?
- Families
- Beginner-friendly
- Event village
- Park
- Age 14 & over
- 5K run
- 10K run
- Half marathon
- Marathon
- 50K ultra run
- + 1 more race
- Sat 6 Jun 2026
- £80-£130
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
- Sat 8 Aug 2026
- £56-£93
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
- Sat 12 Sep 2026
- £80-£120
Thetford Back Yard Ultra Festival
Push your limits in this late-summer Thetford 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
- Sun 25 Oct 2026
- £35
Stort30
A stunningly pretty 30-mile out-and-back ultra on the border of Hertfordshire and Essex along the River Stort and Lee navigation. A great first foray into ultra running or a fast competitive race.
- Beginner-friendly
- Chip timing
- Enter online
- Flat
- Event village
- Rural
- Age 18 & over
- 30 miles trail running + 188 ft ascent