Flat Ultra runs in East of England
Find flat ultra runs in East of England in 2026/2027 - 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
- £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.
- 48 miles trail running + 1923 ft ascent
- Sun 31 May
- £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?
- 5K run
- 10K run
- Half marathon
- Marathon
- 50K ultra run
- + 1 more race
- Sat 6 Jun
- £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.
- Fixed time runs 2
- Ultra run
- Sat 8 Aug
- £56-£95
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.
- 12 hrs trail running
- Sat 12 Sep
- £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.
- Fixed time runs 2
- Ultra run
- Sun 25 Oct
- £35-£55
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.
- 30 miles trail running + 188 ft ascent
- Sat 7 Mar
- £65
Harrold-Odell Country Park Trail Run | 50K
- 50 km trail running