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Trail Half marathons in East of England

Find trail 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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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.
  • Sun 11 Jan
  • £33-£38
Brandon, Suffolk, UK

WTF Where's The Finish?

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.

  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Park
  • Age 18 & over
  • Multi-terrain run 2
Run as far as you can during the 4 or 6-hour event through the lovely Bawsey Country Park on a multi-terrain loop. Run, rest, then head out for more.
  • Sat 24 Jan
  • £27-£38
King's Lynn, Norfolk, UK

OMG (One Mile 2 Go) Run

Run as far as you can during the 4 or 6-hour event through the lovely Bawsey Country Park on a multi-terrain loop. Run, rest, then head out for more.

  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Park
  • Age 18 & over
  • Multi-terrain run 2
Back to Ferry Meadows Country Park for another 4 or 6-hour running challenge! Run as much as you want through the forest on a multi-terrain loop. Run, rest, then head out for some more.
  • Sun 8 Feb
  • £33-£38
Peterborough, Cambridgeshire, UK

Run for Cake

Back to Ferry Meadows Country Park for another 4 or 6-hour running challenge! Run as much as you want through the forest on a multi-terrain loop. Run, rest, then head out for some more.

  • Beginner-friendly
  • Event village
  • Park
  • Age 18 & over
  • Multi-terrain run 2
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!
  • Sun 22 Feb
  • £27-£38
Brandon, Suffolk, UK

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!

  • Beginner-friendly
  • Event village
  • Age 18 & over
  • 5K run
  • 10K run
  • Trail run
  • Half marathon 2
  • Marathon
  • + 1 more race
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.
  • Sat 21 Mar
  • £27-£38
Buntingford, Hertfordshire, UK

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.

  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Age 18 & over
  • Multi-terrain run 2
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.
  • Sun 29 Mar
  • £33-£38
Brandon, Suffolk, UK

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.

  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Park
  • Age 18 & over
  • Multi-terrain run 2
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.
  • Sun 12 Apr
  • £27-£38
Stowmarket, Suffolk, UK

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.

  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Park
  • Age 14 & over
  • 5K run
  • 10K run
  • Half marathon 2
  • Marathon
  • Ultra run
  • + 1 more race
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.
  • Sun 19 Apr
  • £27-£38
Dereham, Norfolk, UK

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.

  • Families
  • Beginner-friendly
  • Event village
  • Rural
  • Age 14 & over
  • 5K run
  • 10K run
  • Trail run
  • Half marathon 2
  • Marathon
  • + 1 more race
Can you survive Farmmageddon? A fantastic half marathon through the lovely grounds of Hyde Hall Farm as part of the Farmmageddon endurance weekend.
  • Sat 23 May
  • £33-£38
Buntingford, Hertfordshire, UK

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.

  • Chip timing
  • Enter online
  • Traffic free
  • Age 18 & over
  • 13.1 miles trail running + 656 ft ascent
Join like-minded runners doing different distances, starting from the base camp of Hyde Hall Farm and encompassing the beautiful grounds around it.
  • Sat 27 Jun
  • £27-£38
Buntingford, Hertfordshire, UK

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.

  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Rural
  • Age 14 & over
  • 5K run
  • 10K run
  • Trail run
  • Half marathon 2
  • Marathon
  • + 1 more race
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.
  • Sun 5 Jul
  • £33-£38
Peterborough, Cambridgeshire, UK

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.

  • Beginner-friendly
  • Event village
  • Park
  • Age 18 & over
  • Multi-terrain run 2
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
  • £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
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!
  • Thu 23 Jul - Sat 1 Aug
  • £300-£350
Bury Saint Edmunds, Suffolk, UK

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!

  • Enter online
  • Undulating
  • Rural
  • Age 18 & over
  • 10 days trail running
Your race, your pace, your distance! Utilising the Gallops route at the amazing Suffolk Running Centre which takes you through to Newmarket so you may get to see the race horses in training!
  • Sat 19 Sep
  • £29-£36
Bury Saint Edmunds, Suffolk, UK

The Lucky Horseshoe | Half Marathon

Your race, your pace, your distance! Utilising the Gallops route at the amazing Suffolk Running Centre which takes you through to Newmarket so you may get to see the race horses in training!

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 18 & over
  • 13.1 miles trail running
Enjoy the stunning route, push your limits, and, of course, earn your race bling over the distance of your choice. Runners will love the fuel and encouragement with every lap!
  • Sun 27 Sep
  • £27-£38
Dereham, Norfolk, UK

The Wensum Way Trail

Enjoy the stunning route, push your limits, and, of course, earn your race bling over the distance of your choice. Runners will love the fuel and encouragement with every lap!

  • Beginner-friendly
  • Event village
  • Park
  • Rural
  • Sustainability policy
  • Age 14 & over
  • 5K run
  • 10K run
  • Trail run
  • Half marathon 2
  • Marathon
  • + 1 more race
This Halloween, run as far as you can during the 4 or 6-hour event through Ferry Meadows, one of the largest country parks in the region, on a multi-terrain loop. Run, rest, then head out for more.
  • Sun 25 Oct
  • £33-£38
Peterborough, Cambridgeshire, UK

Pumpkin Plod

This Halloween, run as far as you can during the 4 or 6-hour event through Ferry Meadows, one of the largest country parks in the region, on a multi-terrain loop. Run, rest, then head out for more.

  • Beginner-friendly
  • Dogs allowed at venue
  • Event village
  • Park
  • Age 18 & over
  • Multi-terrain run 2
Back to Ferry Meadows Country Park for a 10K remembrance running challenge! Run for at least 10K through the forest on a multi-terrain loop. Run, rest, then head out for some more.
  • Sun 8 Nov
  • £33-£38
Peterborough, Cambridgeshire, UK

Remembrance Run | 6 Hour

Back to Ferry Meadows Country Park for a 10K remembrance running challenge! Run for at least 10K through the forest on a multi-terrain loop. Run, rest, then head out for some more.

  • Chip timing
  • Enter online
  • Undulating
  • Traffic free
  • Age 18 & over
  • 6 hrs multi terrain running
  • Sun 15 Feb
Norwich, Norfolk, UK

Norfolk Trail Marathon/Half Marathon - Marriott's Way | Half Marathon

  • 13.1 miles trail running
  • Sun 1 Mar
Brandon, Suffolk, UK

High Lodge Half Marathon - Spring

  • 13.1 miles multi terrain running
  • Sun 15 Mar
Cambridge, Cambridgeshire, UK

Cambridge Boundary Run | Half Marathon

  • 13.1 miles trail running
  • Sat 28 Mar
Tring, Hertfordshire, UK

Run the Wild Half Marathon - Spring Edition

  • 21.1 km trail running + 300 m ascent
  • Sun 10 May
Letchworth Garden City, Hertfordshire, UK

The Greenway Challenge

  • 13 miles trail running
  • Sun 21 Jun
Dunstable, Bedfordshire, UK

Dunstable Downs Half Marathon

  • 21.2 km trail running + 450 m ascent
  • Sun 19 Jul
Stevenage, Hertfordshire, UK

Fairlands Valley Challenge | Half Marathon

  • 13.1 miles trail running

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