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Trail Half marathons in South East

Find trail half marathons in South East 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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Your chance to remember those who have given the ultimate sacrifice during conflicts around the world, with a two-minute silence, a half marathon, then a Remembrance medal, goody bag and special pin.
  • Sun 8 Nov
  • £25-£37
Egham, Surrey

Remembrance Run | South | Half Marathon

Your chance to remember those who have given the ultimate sacrifice during conflicts around the world, with a two-minute silence, a half marathon, then a Remembrance medal, goody bag and special pin.

  • 13.1 miles trail running
  • Enter online
  • Flat
  • Age 17 & over
MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the half marathon, Southampton!
  • Sun 15 Nov
  • £25-£35
Southampton, Hampshire

Southampton MoRun | Half Marathon

MoRunning brings everyday people together with the focus being to inspire you, your family, your kids and your friends to have the best time running! Get ready for the half marathon, Southampton!

  • 13.1 miles trail running
  • Chip timing
  • Enter online
  • Undulating
  • Age 17 & over
A new and unique concept where you decide how many loops you feel capable of on the day from 7km up to an ultra marathon! Push yourself further or go easy.
  • Sat 28 Nov
  • £26-£37
Gerrards Cross, Buckinghamshire

Running Tribe Races | Nov

A new and unique concept where you decide how many loops you feel capable of on the day from 7km up to an ultra marathon! Push yourself further or go easy.

  • 1 day multi terrain running
  • Beginner-friendly
  • Dogs allowed at venue
  • Hilly
  • Traffic free
  • Event village
  • Park
  • Rural
  • Public transport links
  • Age 16 & over
Come and join in for the Snow Globe Gallop Bobble Hat Run, at this event you can earn yourself one of the incredible themed medals and, of course, a bobble hat!!
  • Sat 5 Dec
  • £23-£40
Staines, Surrey

The Snow Globe Gallop Bobble Hat Run | Half Marathon

Come and join in for the Snow Globe Gallop Bobble Hat Run, at this event you can earn yourself one of the incredible themed medals and, of course, a bobble hat!!

  • 13.1 miles trail running
  • Enter online
  • Age 17 & over
A new and unique concept where you decide how many loops you feel capable of on the day from 7km up to an ultra marathon! Push yourself further or go easy.
  • Sat 12 Dec
  • £26-£37
Gerrards Cross, Buckinghamshire

Running Tribe Races | Dec

A new and unique concept where you decide how many loops you feel capable of on the day from 7km up to an ultra marathon! Push yourself further or go easy.

  • 1 day multi terrain running
  • Beginner-friendly
  • Dogs allowed at venue
  • Enter online
  • Undulating
  • Hilly
  • Traffic free
  • Park
  • Rural
  • Public transport links
  • Age 16 & over
Come and join the day of running and aim to complete a half marathon at your own pace on a flat, out-and-back route along the River Thames then receive a bespoke medal and goody bag at the finish!
  • Sat 26 Dec
  • £33-£35
Egham, Surrey

Boxing Day Challenge | Half Marathon

Come and join the day of running and aim to complete a half marathon at your own pace on a flat, out-and-back route along the River Thames then receive a bespoke medal and goody bag at the finish!

  • 13.1 miles trail running
  • Enter online
  • Flat
  • Traffic free
  • Age 17 & over
  • Sat 11 Apr
  • £10-£49
Brighton, East Sussex

The Maverick East Sussex Trail | Half Marathon - 21K

  • 21 km trail running
  • Sun 19 Apr
  • From £40
Tunbridge Wells, East Sussex

Eridge Park - Trail Half Marathon & 10K | Half Marathon

  • 13.1 miles trail running
  • Sun 19 Apr
  • £40
Basingstoke, Hampshire

Dell 10K & Half Marathon | Half Marathon

  • 13.1 miles trail running
  • Sun 10 May
  • £40-£42
Reading, Berkshire

Goring Gap Trails | Run - Half Marathon

  • 13.1 miles trail running + 102 m ascent
  • Sun 10 May
  • £40-£42
Polegate, East Sussex

The Rathfinny Run 10.7K and Half Marathon | Half Marathon

  • 21.4 km trail running
  • Sat 23 May
  • £42-£44
Eastbourne, East Sussex

Seven Sisters Half Marathon

  • 13.1 miles trail running + 2057 ft ascent
  • Sun 7 Jun
  • £32-£39
Lewes, East Sussex

Weald Challenge

  • 22 km trail running
  • Sun 14 Jun
  • £53-£55
Kingsclere, Hampshire

The Hampshire Hoppit | Half Marathon

  • 13.1 miles trail running + 330 m ascent
  • Sat 27 Jun
  • £35-£45
Winchester, Hampshire

Gravel Rush, Winchester | 21K Half Marathon

  • 21 km trail running
  • Sun 5 Jul
  • £30-£32
Aylesbury, Buckinghamshire

Chiltern Ridge Half Marathon

  • 21.3 km trail running + 526 m ascent
  • Sun 13 Sep
  • £69
Dorking, Surrey

Bacchus Wine Half Marathon

  • 13.1 miles trail running + 1427 ft ascent
  • Sat 3 Oct
  • £44-£46
Lewes, East Sussex

Dark Downs Half Marathon

  • 13.8 miles trail running + 1686 ft ascent
  • Sun 14 Mar 2027
  • £44
Dorking, Surrey

Leith Hill Half Marathon

  • 13.1 miles trail running + 1778 ft ascent

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