Half marathons in East of England
Find half marathons 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 22 Feb
- £27-£35
Thetford Festival of Running
New venue! Come and enjoy the paths, trails and woodland of Thetford Forest over the distance of your choice with fantastic support each lap and a medal at the finish!
- 5K run
- 10K run
- Trail run
- Half marathon 2
- Marathon
- + 1 more race
- Sun 22 Feb
- £36-£38
ATW Bedford Half Marathon
This chip timed event is a sure-fire guarantee to give you the best chance of a PB in the Half Marathon.
- 21.1 km road running
- Sun 1 Mar
- £36-£38
ATW Great Yarmouth Seafront Half Marathon
Pack your trainers alongside your bucket and spade for an event that seamlessly combines the thrill of running with the picturesque charm of Great Yarmouth over a fast-paced course.
- 13.1 miles road running
- Sun 8 Mar
- £33-£35
Colchester Half Marathon
An exciting stadium base and a route which takes you past iconic landmarks of the UK's oldest town with thousands of people cheering you on as you run through the centre!
- 13.1 miles road running + 403 ft ascent
- Sun 8 Mar
- £20-£35
TTP Cambridge Half Marathon
Run 13.1 unforgettable miles through Cambridge’s historic streets and iconic University grounds on a flat, fast-paced course perfect for supporting a charity cause and chasing a personal best.
- 13.1 miles road running
- Sat 21 Mar
- £27-£38
Moo-rathon, Calf and Hen K
Marathon, Half and 10K! Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
- Multi-terrain run 2
- Sun 22 Mar
- £36-£38
ATW Run Fest at Lee Valley | Half Marathon
Smash your personal best on a traffic-free, flat and fast course from the White Water Centre and into surrounding beautiful regional parkland with a custom-designed medal for finishers.
- 13.1 miles road running + 79 ft ascent
- Sun 29 Mar
- £33-£38
Zig Zag Challenge
Run as far as you can during the 4 or 6-hour event through Brandon Country Park in the very heart of Thetford Forest on a multi-terrain loop. Run, rest, then head out for more.
- Multi-terrain run 2
- Fri 3 Apr
- £33-£38
Easter Challenge
Run as far as you can during the 6-hour event at Suffolk Running Centre on a multi-terrain loop. Run, rest, then head out for more.
- 6 hrs multi terrain running
- Mon 6 Apr
- £34-£36
ATW Stevenage Spring Half Marathon
From the fantastic Ridlins Stadium athletics track, wind your way around superb traffic-free tarmac routes and enjoy the beautiful Fairlands Valley Park the return to a vibrant event village!
- 13.1 miles road running + 538 ft ascent
- Sun 12 Apr
- £27-£38
Haughley Festival of Running
Join in at the beautiful Haughley Park for the Haughley Festival of Running and join like-minded runners tackling a variety of distances on the day within the 4 or 6-hour time limit.
- 5K run
- 10K run
- Half marathon 2
- Marathon
- Ultra run
- + 1 more race
- Sun 19 Apr
- £27-£38
The Roman Ramble
A relaxed, lap-based trail run through picturesque countryside, giving you complete control over your distance — perfect for beginners, returning runners or those chasing longer goals.
- 5K run
- 10K run
- Trail run
- Half marathon 2
- Marathon
- + 1 more race
- Sun 26 Apr
- £29-£36
The Other Run | Half Marathon
On the same day as the famous marathon in London, why not come along to The "Other" Run? Complete a half marathon and earn a Zig Zag medal too.
- 13.1 miles road running + 764 ft ascent
- Sun 10 May
- £29-£34
Zig Zag Half Marathon
The half marathon follows the beautiful Windmill route from the Suffolk Running Centre which is mildly undulating and very scenic with views over the local windmill.
- 13.1 miles road running + 764 ft ascent
- Sun 17 May
- £27-£38
The Birthday Run
Zig Zag Running is 6 years old this month so why not come along and celebrate?! You are promised lots of cake!
- 5K run
- Multi-terrain run 2
- Half marathon 2
- Marathon
- Ultra run
- Sat 23 May
- £33-£38
Farmmageddon | Half Marathon
Can you survive Farmmageddon? A fantastic half marathon through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
- 13.1 miles trail running + 656 ft ascent
- Sun 31 May
- £34-£36
Circuit Du Sore Legs | Half Marathon
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?
- 13.1 miles track and field
- Sun 7 Jun
- £29-£36
Valley of the Owls Run | Half Marathon
This route takes in the Valley of the Owls in Suffolk, with some of the oldest roads in England and very beautiful countryside.
- 13.1 miles road running + 725 ft ascent
- Sun 14 Jun
- £38-£40
ATW St Albans Half Marathon
A community focused event, ATW St Albans Half Marathon aims to raise money for local charities and organisations as well as put on a great day out for all the family, delivered by runners for runners.
- 13.1 miles road running + 699 ft ascent
- Sat 27 Jun
- £27-£38
Cock-a-doodle Dawdle
Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
- 5K run
- 10K run
- Trail run
- Half marathon 2
- Marathon
- + 1 more race
- Sun 5 Jul
- £33-£38
Summer Ready Run
Come and join the fun in a 4 or 6-hour running challenge at Ferry Meadows! Run as much as you want through the forest on a multi-terrain loop. Run, rest, then head out for some more.
- Multi-terrain run 2
- Sun 12 Jul
- £27-£38
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.
- Fixed time runs 2
- Thu 23 Jul - Sat 1 Aug
- £300-£350
Great Barrow Challenge | 10 events in 10 days
10 running events in 10 days in the beautiful Suffolk countryside. Run 5K, 10K, Half Marathon, Marathon or an Ultra every day for 10 days in this unique endurance challenge!
- 10 days trail running
- Sun 16 Aug
- £31-£33
Clacton Half Marathon
It's the crash of waves and the sea-salt that lingers in the cool coastal air. It's your moment to fly along the promenade in this cracking half marathon. It's a seaside racing extravaganza!
- 13.1 miles road running + 180 ft ascent
- Sat 22 Aug
- £29-£36
The Lucky Clover | Half Marathon
Your race, your pace, your distance! Half marathon runners will explore The Clover Route which is on road and receive a special bespoke medal too.
- 13.1 miles road running + 633 ft ascent