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100K ultra runs in South West in May 2025

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

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A demanding challenge, taking on 100km along the UNESCO World Heritage Jurassic Coast, starting from Corfe Castle on a fully-supported challenge visiting the highlights of the region.
  • Sat 17 - Sun 18 May 2025
  • 13 charities
  • Sat 17 - Sun 18 May 2025
  • 13 charities
Wareham, Dorset, UK

Jurassic Coast Ultra Challenge | Full 100km continuous charity places

A demanding challenge, taking on 100km along the UNESCO World Heritage Jurassic Coast, starting from Corfe Castle on a fully-supported challenge visiting the highlights of the region.

  • Chip timing
  • Enter online
  • GPS tracking
  • Hilly
  • Age 18 & over
  • 100 km trail running + 2300 m ascent
Take on the full 100km challenge across two days, to enjoy the entirety of the route during daylight, with camping options at the halfway Basecamp in Weymouth.
  • Sat 17 - Sun 18 May 2025
  • 13 charities
  • Sat 17 - Sun 18 May 2025
  • 13 charities
Wareham, Dorset, UK

Jurassic Coast Ultra Challenge | Full 100km over 2 days charity places

Take on the full 100km challenge across two days, to enjoy the entirety of the route during daylight, with camping options at the halfway Basecamp in Weymouth.

  • Chip timing
  • Enter online
  • GPS tracking
  • Hilly
  • Age 18 & over
  • 100 km trail running + 2300 m ascent

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