10

100K ultra runs in South East

Find 100k ultra runs near me in South East for 2024/2025 - search by date or place, display on a map or use the advanced search to find your perfect race.

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Walk, jog or run the stunning coastal paths of the Isle of Wight for a great charity cause, from the base camp at Chale, visiting historic Cowes and the iconic Needles en route.
  • Sat 3 - Sun 4 May 2025
  • 4 charities
  • Sat 3 - Sun 4 May 2025
  • 4 charities
Ventnor, Isle of Wight, UK

Isle of Wight Ultra Challenge charity places

Walk, jog or run the stunning coastal paths of the Isle of Wight for a great charity cause, from the base camp at Chale, visiting historic Cowes and the iconic Needles en route.

  • Newcomers
  • Entertainment
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Event village
  • Age 14 & over
  • 1 day trail running
Walk, jog or run along the capital to coast route for charity, with a range of distance options available and superb support all the way, for all abilities and experience levels.
  • Sat 24 - Sun 25 May 2025
  • 7 charities
  • Sat 24 - Sun 25 May 2025
  • 7 charities
Brighton, East Sussex, UK

London 2 Brighton Ultra Challenge charity places

Walk, jog or run along the capital to coast route for charity, with a range of distance options available and superb support all the way, for all abilities and experience levels.

  • Entertainment
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Event village
  • Age 14 & over
  • 1 day trail running
Take on the full 100K Race to the King ultra marathon challenge in one go. Fully supported through day and night on a route combining castles and coastal scenery.
  • Sat 21 - Sun 22 Jun 2025
  • £160
  • 2 charities
  • Sat 21 - Sun 22 Jun 2025
  • £160
  • 2 charities
Chichester, West Sussex, UK

Race to the King | 100K Non-stop

Take on the full 100K Race to the King ultra marathon challenge in one go. Fully supported through day and night on a route combining castles and coastal scenery.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 4619 ft ascent
Take on the full 100K Race to the Stones ultramarathon in one go. Fully supported through day and night on an incredibly scenic and historic route.
  • Sat 12 Jul 2025
  • £50
  • 3 charities
  • Sat 12 Jul 2025
  • £50
  • 3 charities
Watlington, Oxfordshire, UK

Race to the Stones | 100K Non-stop

Take on the full 100K Race to the Stones ultramarathon in one go. Fully supported through day and night on an incredibly scenic and historic route.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 3704 ft ascent
Take on the full Race to the Stones 100K ultramarathon over two days, making your own arrangements for overnight accommodation at the halfway point.
  • Sat 12 Jul 2025
  • £160
  • Sat 12 Jul 2025
  • £160
Watlington, Oxfordshire, UK

Race to the Stones | 100K Two Days no camping

Take on the full Race to the Stones 100K ultramarathon over two days, making your own arrangements for overnight accommodation at the halfway point.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 3704 ft ascent
Take on the full 100K Race to the Stones ultramarathon with an overnight stop at the all-inclusive Basecamp, meaning a good nights' sleep in between the 50K stints.
  • Sat 12 Jul 2025
  • £250
  • 3 charities
  • Sat 12 Jul 2025
  • £250
  • 3 charities
Watlington, Oxfordshire, UK

Race to the Stones | 100K Two Days with camping

Take on the full 100K Race to the Stones ultramarathon with an overnight stop at the all-inclusive Basecamp, meaning a good nights' sleep in between the 50K stints.

  • Chip timing
  • Enter online
  • GPS tracking
  • Undulating
  • Age 18 & over
  • 100 km trail running + 3704 ft ascent
The South Downs National Park is a superb backdrop for a real charity challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!
  • Sat 6 - Sun 7 Sep 2025
  • 13 charities
  • Sat 6 - Sun 7 Sep 2025
  • 13 charities
Eastbourne, East Sussex, UK

South Coast Ultra Challenge charity places

The South Downs National Park is a superb backdrop for a real charity challenge featuring Beachy Head, the Seven Sisters and the South Downs Way with a choice of distances from 25km right up to 100km!

  • Newcomers
  • Music
  • Chip timing
  • Enter online
  • GPS tracking
  • Fundraising required
  • Undulating
  • Event village
  • Urban
  • Rural
  • Coast
  • Age 14 & over
  • 1 day trail running
  • Sat 26 Apr 2025
Brighton, East Sussex, UK

Brighton to London Ultra

  • 100 km trail running + 1489 m ascent
  • Sat 26 Apr 2025
Chesham, Buckinghamshire, UK

Chiltern Hills 100K

  • 100 km trail running
  • Sun 25 May 2025
Arundel, West Sussex, UK

UK Ultra South Downs 100K

  • 100 km trail running

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