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Ultra runs in South East

Find ultra runs near me in South East for 2025/2026 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Click an event for full event details, location, route, sustainability, what's included and how to enter.

Set in an Area of Outstanding Natural Beauty offering dramatic views, vibrant communities, a rich historic heritage, and diverse wildlife and habitats – featuring the North Downs Way National Trail.
  • Sat 11 Oct
  • £139
  • 6 charities
  • Sat 11 Oct
  • £139
  • 6 charities
Maidstone, Kent, UK

Kent Downs 50 Ultra Challenge | 50km

Set in an Area of Outstanding Natural Beauty offering dramatic views, vibrant communities, a rich historic heritage, and diverse wildlife and habitats – featuring the North Downs Way National Trail.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 16 & over
  • 50 km trail running + 1000 m ascent
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
  • Sat 25 Oct
  • £26-£37.50
  • Sat 25 Oct
  • £26-£37.50
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races | Oct | 40 Mile Ultramarathon

A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.

  • Enter online
  • Undulating
  • Age 18 & over
  • 40 miles multi terrain running
Test yourself on an ultramarathon - one of the most poignant challenges of the year - to honour the servicemen and women who have sacrificed so much for our nation.
  • Sat 8 Nov
  • £70-£175
  • Sat 8 Nov
  • £70-£175
Aldershot, Hampshire, UK

Race to Remember | 76km

Test yourself on an ultramarathon - one of the most poignant challenges of the year - to honour the servicemen and women who have sacrificed so much for our nation.

  • Enter online
  • Undulating
  • Age 16 & over
  • 76 km multi terrain running + 2100 ft ascent
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
  • Sun 30 Nov
  • £26-£37.50
  • Sun 30 Nov
  • £26-£37.50
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races | Nov | 40 Mile Ultramarathon

A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.

  • Enter online
  • Undulating
  • Age 18 & over
  • 40 miles multi terrain running
A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.
  • Sun 14 Dec
  • £26-£37.50
  • Sun 14 Dec
  • £26-£37.50
Gerrards Cross, Buckinghamshire, UK

Running Tribe Races | Dec | 40 Mile Ultramarathon

A new and unique concept where you turn up ready to conquer an Ultra but if you feel like going easy, run a cool 1-3 loops instead! Ideal for testing out fuelling techniques & kit.

  • Enter online
  • Undulating
  • Age 18 & over
  • 40 miles multi terrain running
  • Sat 5 Apr
Andover, Hampshire, UK

Testway Ultra | 50 Mile

  • 50 miles trail running
  • Sat 5 Apr
Andover, Hampshire, UK

Testway Ultra | 40 Mile

  • 40 miles trail running
  • Sun 6 Apr
Arundel, West Sussex, UK

UK Ultra Springtide 50K Race

  • 50 km trail running
  • Sat 12 Apr
Hindhead, Hampshire, UK

The Spring Trail Series by Ultra X | 75K

  • 75 km trail running
  • Sat 12 Apr
Hindhead, Hampshire, UK

The Spring Trail Series by Ultra X | 50K

  • 50 km trail running
  • Wed 23 - Sun 27 Apr
Reading, Berkshire, UK

Thames Ring 250

  • 250 miles trail running
  • Sat 26 Apr
Brighton, East Sussex, UK

Brighton to London Ultra

  • 100 km trail running + 1489 m ascent
  • Sat 26 Apr
Chesham, Buckinghamshire, UK

Chiltern Hills 100K

  • 100 km trail running
  • Fri 2 May
Walton-on-Thames, Surrey, UK

Track Wars XXVI - Never Give Up | 6 Hour

  • 6 hrs track and field
  • Fri 2 May
Walton-on-Thames, Surrey, UK

Track Wars XXVI - Never Give Up | 12 Hour

  • 12 hrs track and field
  • Fri 2 May
Walton-on-Thames, Surrey, UK

Track Wars XXVI - Never Give Up | 24 Hour

  • 24 hrs track and field
  • Fri 2 May
Walton-on-Thames, Surrey, UK

Track Wars XXVIII - Midnight

  • 6 hrs track and field
  • Mon 5 May
Winchester, Hampshire, UK

BigWayRound - Winchester | 50K Ultra Marathon

  • 50 km trail running
  • Sat 10 May
Horsham, West Sussex, UK

Run to the Sea Brighton

  • 50 km multi terrain running
  • Sat 10 May
Brighton, East Sussex, UK

Brighton Backyard Ultra

  • 4 miles trail running
  • Sat 17 May
Reading, Berkshire, UK

Goring Gap Trail Weekender | 50 Mile Ultra

  • 50 miles trail running
  • Sun 18 May
Reading, Berkshire, UK

Goring Gap Trail Weekender | 52K Ultra

  • 52 km trail running
  • Sun 18 May
Guildford, Surrey, UK

Greensand Way Ultra Run

  • 30 miles trail running
  • Sat 24 May
Godalming, Surrey, UK

The Fox Trail 20K, 41K & 62K | 62K

  • 62 km trail running
  • Sat 24 May
Horndean, Hampshire, UK

UK Ultra South Downs 100 Miles

  • 100 miles trail running

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