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Trail Marathons in UK

Find trail marathons in UK 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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A jewel in the castle crown! Get active in the beautiful castle grounds in a marathon run then celebrate with fellow athletes, friends and family in the fantastic festival village afterwards.
  • Sun 19 Jul 2026
  • £52-£65
Grantham, Leicestershire, UK

Belvoir Castle | Marathon

A jewel in the castle crown! Get active in the beautiful castle grounds in a marathon run then celebrate with fellow athletes, friends and family in the fantastic festival village afterwards.

  • Chip timing
  • Enter online
  • Age 18 & over
  • 42.2 km trail running
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 2026
  • £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
Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.
  • Sun 9 Aug 2026
  • £53-£55
London, UK

Thames Meander Summer | Marathon

Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.

  • Chip timing
  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running + 600 ft ascent
Enjoy a trip up the Leeds and Liverpool Canal this summer over a range of distances, all along the flat and even towpath. This event is perfect for runners of all abilities.
  • Sat 15 Aug 2026
  • £38-£42
Shipley, West Yorkshire, UK

Sir Titus Summer Trot | Marathon

Enjoy a trip up the Leeds and Liverpool Canal this summer over a range of distances, all along the flat and even towpath. This event is perfect for runners of all abilities.

  • Chip timing
  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running + 506 ft ascent
Whether you're looking to get some miles under your belt before The Great North Run or you just fancy a run along the beautiful River Wear, then this is the event for you!
  • Sun 30 Aug 2026
  • £17-£29
Durham, County Durham, UK

GNR & Time Turner | Marathon

Whether you're looking to get some miles under your belt before The Great North Run or you just fancy a run along the beautiful River Wear, then this is the event for you!

  • Enter online
  • Age 18 & over
  • 26.2 miles trail running
We all love to be beside the seaside, so why not enjoy a trail marathon from the coast at Hornsea? You can grab yourself fish and chips and an ice cream from the front after the race.
  • Sat 5 Sep 2026
  • £39-£41
Hornsea, East Yorkshire, UK

Hip Hip Hooray it's Hornsea | Marathon

We all love to be beside the seaside, so why not enjoy a trail marathon from the coast at Hornsea? You can grab yourself fish and chips and an ice cream from the front after the race.

  • Chip timing
  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running + 322 ft ascent
Previously rated one of the top UK marathons! Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes.
  • Sat 12 Sep 2026
  • £53-£55
Wadhurst, East Sussex, UK

Bewl Water Autumn | Marathon

Previously rated one of the top UK marathons! Scenic mixed-terrain route around Bewl Water on undulating rural wooded trails and quiet country lanes.

  • Chip timing
  • Enter online
  • Hilly
  • Age 18-80
  • 26.5 miles trail running + 1420 ft ascent
Get your Oompah vibe on and enjoy a trip up the Leeds and Liverpool Canal. A marathon to warm the depths of your heart along the flat, even towpath - this event is perfect for all abilities.
  • Sat 19 Sep 2026
  • £39-£41
Leeds, West Yorkshire, UK

Oktoberfest | Marathon

Get your Oompah vibe on and enjoy a trip up the Leeds and Liverpool Canal. A marathon to warm the depths of your heart along the flat, even towpath - this event is perfect for all abilities.

  • Chip timing
  • Enter online
  • Flat
  • PB
  • Age 18 & over
  • 26.2 miles trail running + 210 ft ascent
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 2026
  • £33-£38
Bury Saint Edmunds, Suffolk, UK

The Lucky Horseshoe | Full 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
  • 26.2 miles trail running + 1260 ft ascent
Set in the heart of the beautiful New Forest, with a Grade I listed 'calendar' manor house as the backdrop, this is a technical trail loop suitable for all abilities.
  • Sun 20 Sep 2026
  • £37.50-£39.50
Christchurch, Hampshire, UK

Something to Talk About

Set in the heart of the beautiful New Forest, with a Grade I listed 'calendar' manor house as the backdrop, this is a technical trail loop suitable for all abilities.

  • Families
  • Newcomers
  • Enter online
  • Undulating
  • Traffic free
  • Event village
  • Age 18 & over
  • 7 hrs trail running + 404 ft ascent
Enjoy the stunning route, push your limits, and, of course, earn your race bling over marathon distance. Runners will love the fuel and encouragement with every lap!
  • Sun 27 Sep 2026
  • £31-£38
Dereham, Norfolk, UK

The Wensum Way Trail | Full Marathon

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

  • Enter online
  • Age 18 & over
  • 26.2 miles trail running + 62 ft ascent
Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.
  • Sun 4 Oct 2026
  • £53-£55
London, UK

Thames Meander Autumn | Marathon

Previously rated one of the top 10 UK marathons by Runners World! Stunningly scenic riverside routes along the Thames towpath. Flat, fast and very runnable with great runner support.

  • Chip timing
  • Enter online
  • Flat
  • Age 18 & over
  • 26.2 miles trail running + 600 ft ascent
Conquer 26 scenic miles from South Brent to Mothecombe, combining moorland trails, river valleys and coastal paths for a trail marathon that captures the spirit of the new South Hams Way.
  • Sat 10 Oct 2026
  • £45
Plymouth, Devon, UK

The South Hams Ultra | Marathon

Conquer 26 scenic miles from South Brent to Mothecombe, combining moorland trails, river valleys and coastal paths for a trail marathon that captures the spirit of the new South Hams Way.

  • Enter online
  • GPS tracking
  • Age 18 & over
  • 26.2 miles trail running + 1183 m ascent
A trail running extravaganza over a beautiful 6.5-mile route from Knaresborough centre through parkland then into beautiful countryside with an awesome medal at the finish line.
  • Sun 18 Oct 2026
  • £39-£41
Knaresborough, North Yorkshire, UK

Old Mother Shipton's Soft Shoe Shuffle | Marathon

A trail running extravaganza over a beautiful 6.5-mile route from Knaresborough centre through parkland then into beautiful countryside with an awesome medal at the finish line.

  • Chip timing
  • Enter online
  • Undulating
  • Age 18 & over
  • 26.2 miles trail running + 1416 ft ascent
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 2026
  • £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.

  • Newcomers
  • Dogs allowed at venue
  • Event village
  • Park
  • Age 18 & over
  • Multi-terrain run 2
Enjoy stunning coastal views on this flexible-distance run at Milford on Sea, following an out-and-back route beside Sturt Pond and the Isle of Wight — perfect for all abilities.
  • Sun 25 Oct 2026
  • £37.50-£39.50
Lymington, Hampshire, UK

Wight Lines

Enjoy stunning coastal views on this flexible-distance run at Milford on Sea, following an out-and-back route beside Sturt Pond and the Isle of Wight — perfect for all abilities.

  • Newcomers
  • Enter online
  • Flat
  • Event village
  • Coast
  • Public transport links
  • Age 18 & over
  • 7 hrs trail running + 47 ft ascent
An autumnal trail treat to delight the senses and lift your spirit as you clock the miles and enjoy the majestic beauty of Wendover Forest. See you there!
  • Sun 1 Nov 2026
  • £47
Tring, Buckinghamshire, UK

Wendover Woods Marathon

An autumnal trail treat to delight the senses and lift your spirit as you clock the miles and enjoy the majestic beauty of Wendover Forest. See you there!

  • Enter online
  • Undulating
  • Age 18 & over
  • 26.2 miles trail running + 2966 ft ascent
Come and join in for the Snow Globe Gallop, get a few miles under your belt before the Christmas festivities really kick in!
  • Sun 6 Dec 2026
  • £17-£29
Durham, County Durham, UK

The Snow Globe Gallop - North | Marathon

Come and join in for the Snow Globe Gallop, get a few miles under your belt before the Christmas festivities really kick in!

  • Enter online
  • Age 18 & over
  • 26.2 miles trail running
  • Sat 6 Dec
Swanage, Dorset, UK

EnduranceLife - Dorset | Marathon

  • 27 miles trail running + 4692 ft ascent
  • Sun 7 Dec
Christchurch, Hampshire, UK

New Forest Xmas Trails | Marathon

  • 26.2 miles trail running + 1340 ft ascent
  • Sat 13 Dec
Grecynon, Mid Glamorgan, UK

Celtic Trail Races | Marathon

  • 26 miles trail running + 3050 ft ascent
  • Sat 13 Dec
Carrickfergus, County Antrim, UK

Early Xmas Run | Marathon

  • 26.2 miles trail running
  • Sun 14 Dec
Sale, Greater Manchester, UK

BigXmas | Marathon

  • 26.2 miles trail running + 317 ft ascent
  • Sat 20 Dec
Tiverton, Devon, UK

Christmas Canter | Marathon

  • 26.2 miles trail running
  • Sun 28 Dec
Walton-on-Thames, Surrey, UK

Year End Marathon & Half Marathon | Marathon

  • 26.2 miles trail running

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